ADC/DAC
Products (181)
AD4852BCPZ - 20-Bit 250kSPS 4-Ch DAS | Analog Devices
The AD4852BCPZ from Analog Devices is a fully buffered, 4-channel simultaneous sampling, 20-bit, 250kSPS data acquisition system (DAS) with differential, wide common-mode range inputs. It integrates a complete signal chain including input buffers, a 20-bit SAR ADC, an internal reference and reference buffer, and supply decoupling capacitors, all in a compact 64-lead LFCSP package. Operating from a 5V low-voltage supply, it delivers 36mW per channel at 250kSPS, scaling with throughput for power-efficient designs. A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data. The AD4852 integrates the analog front-end, ADC, and reference, simplifying design and reducing component count. It sits within the hierarchy: DAS -> ADC -> data converter -> mixed-signal IC -> semiconductor. This integration is critical for high-channel-count systems where board space and power are at a premium. Key features include ±75pA typical input leakage at 25°C, full-scale input step settling time of less than 300ns, and an integrated 4.096V reference. The differential inputs with wide common-mode range allow direct connection to sensors and transducers without external conditioning. The device also features a flexible digital interface supporting SPI and daisy-chain modes, enabling multiple devices to be cascaded for higher channel counts. Technically, the AD4852 uses a successive approximation register (SAR) architecture with internal buffering, eliminating the need for external driver amplifiers. The integrated reference buffer ensures stable and accurate conversions over temperature. The device includes a temperature sensor and a 1.024V output for system diagnostics. Its power dissipation scales with throughput, making it suitable for battery-powered and thermal-constrained applications. Typical applications include industrial automation, motor control, power line monitoring, and multi-phase energy metering. The simultaneous sampling capability is essential for applications requiring phase-accurate measurements across multiple channels, such as three-phase power monitoring and vibration analysis. The wide common-mode input range and high input impedance simplify sensor interfacing. When designing with the AD4852, ensure adequate decoupling on the AVDD and DVDD supplies, and use the integrated reference buffer to drive the reference input. The device supports a 1.8V to 5V digital interface, allowing direct connection to modern microcontrollers and FPGAs. For optimal performance, follow the layout guidelines in the datasheet, including a solid ground plane and minimal trace lengths on the analog inputs.
AD4853BCPZ - 16-Bit 4-Ch 1MSPS DAS | Analog Devices
The AD4853BCPZ is a complete 16-bit data acquisition system (DAS) from Analog Devices, featuring simultaneous sampling of four internally buffered channels at 1 MSPS per channel. It integrates a 16-bit successive approximation register (SAR) ADC, input buffers, a precision 4.096V reference and reference buffer, and supply decoupling capacitors, all in a 64-ball BGA (7x7 mm) package. The device operates from a 4.75V to 5.25V analog supply and supports differential, wide common-mode range inputs with ±75 pA typical input leakage at 25°C. Full-scale input step settling time is less than 300 ns, and power dissipation is 57 mW per channel at 1 MSPS, scaling with throughput. A data acquisition system (DAS) is a complete signal chain that converts analog signals into digital data, typically integrating an ADC, input conditioning, and reference circuitry. The AD4853 is a buffered, simultaneous-sampling DAS, meaning it includes internal input buffers that eliminate the need for external op-amps and allows direct connection to sensors. It belongs to the hierarchy: DAS -> ADC -> data converter -> mixed-signal IC -> semiconductor. This integration simplifies design, reduces board space, and improves performance by minimizing external component variability. Key features include 16-bit resolution, 1 MSPS throughput per channel, four simultaneously sampled channels, and an integrated reference. The device offers a 94.6 dB signal-to-noise ratio (SNR) and 0.2 LSB typical integral nonlinearity (INL). It supports both SPI and LVDS digital interfaces, making it versatile for high-speed data transfer. The input range is bipolar, and the device can be configured for external or built-in reference operation. Technically, the AD4853 uses a SAR architecture with internal input buffers that provide high input impedance and low leakage, enabling direct sensor connection. The integrated reference and buffer ensure stable and accurate conversions. The device includes power scaling, reducing power consumption at lower throughputs, which is critical for battery-powered applications. The 64-ball BGA package (7x7 mm) offers a compact footprint with excellent thermal performance. Typical applications include industrial automation, motor control, power monitoring, and medical instrumentation. In motor control, the simultaneous sampling of three-phase currents and voltages enables accurate vector control. In power monitoring, the high SNR and low leakage ensure precise measurement of voltage and current waveforms. The device's wide common-mode range and differential inputs make it suitable for shunt-based current sensing. When designing with the AD4853, ensure proper decoupling of the analog and digital supplies, and use a low-noise reference. The integrated reference simplifies design, but for higher accuracy, an external reference can be used. The SPI interface allows easy connection to microcontrollers, while LVDS is available for high-speed data transfer over longer distances.
AD4854BCPZ - 20-Bit 4-Ch 1MSPS DAS | Analog Devices
The AD4854BCPZ is a complete 20-bit data acquisition system (DAS) from Analog Devices, featuring simultaneous sampling of four internally buffered channels at 1 MSPS per channel. It integrates a precision ADC, input buffers, a 4.096V reference and reference buffer, and supply decoupling capacitors, reducing external component count and simplifying design. The device operates from a single 5V supply and supports differential inputs with a wide common-mode range, making it suitable for high-performance industrial and instrumentation applications. A data acquisition system (DAS) is a complete signal chain that converts analog signals into digital data, typically including input conditioning, an ADC, and a reference. The AD4854 integrates these functions into a single IC, providing a compact solution for multi-channel simultaneous sampling. It belongs to the family of precision data converters, which are essential in applications requiring high accuracy and speed, such as motor control, power monitoring, and vibration analysis. Key features include 20-bit resolution, 1 MSPS throughput per channel, ±75 pA typical input leakage at 25°C, and a full-scale input step settling time of less than 300 ns. The integrated reference and buffer provide a stable 4.096V reference, while the internal supply decoupling capacitors minimize external filtering. Power consumption is 57 mW per channel at 1 MSPS, scaling with throughput, which is efficient for multi-channel systems. The AD4854 uses a successive approximation register (SAR) architecture with internal input buffers, allowing direct connection to sensors without external drivers. The wide common-mode input range and differential inputs reject common-mode noise, improving measurement accuracy. The device operates over an extended industrial temperature range of -40°C to +125°C, ensuring reliability in harsh environments. Typical applications include industrial automation, motor control, power quality monitoring, and vibration analysis. The simultaneous sampling capability is critical for applications requiring phase-accurate measurements across multiple channels, such as three-phase power monitoring. The integrated reference and buffers reduce BOM cost and board space, making it ideal for space-constrained designs. When designing with the AD4854, ensure proper decoupling of the supply pins and use a low-noise reference for optimal performance. The device supports both LVDS and CMOS digital interfaces, providing flexibility in system integration. For best results, follow the layout guidelines in the datasheet to minimize noise and achieve full 20-bit performance.
AD5214TD/883B - 12-Bit SAR ADC, Military Grade | Analog Devices
The AD5214TD/883B is a 12-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, designed for high-reliability military and aerospace applications. It features a conversion time of 13 microseconds and operates over the full military temperature range of -55°C to +125°C. The device is packaged in a 24-pin ceramic dual-in-line package (CDIP) with through-hole mounting, ensuring robust mechanical and thermal performance in harsh environments. With a maximum supply current of 68 mA, it balances speed and power efficiency for precision data acquisition systems. An analog-to-digital converter (ADC) is a critical component in electronic systems that converts continuous analog signals into discrete digital values for processing by microcontrollers, DSPs, or FPGAs. The successive approximation register (SAR) architecture used in the AD5214TD/883B is favored for its high speed and low power consumption compared to other ADC types like delta-sigma or pipeline converters. SAR ADCs are widely used in industrial control, medical instrumentation, and military avionics where accurate and fast conversion is essential. Key features of the AD5214TD/883B include 12-bit resolution with 0.0122% integral linearity error (EL), ensuring high accuracy for precision measurements. The device supports both serial and parallel output interfaces, providing flexibility in system design. The hybrid technology construction and military temperature grade make it suitable for mission-critical applications where reliability is paramount. The CDIP24 package offers excellent thermal dissipation and protection against environmental stress. Technically, the AD5214TD/883B employs a charge redistribution SAR architecture with an internal track-and-hold circuit, enabling accurate sampling of input signals up to the Nyquist frequency. The conversion process is initiated by a start command, and the 12-bit result is available on parallel output lines or shifted out serially. The device operates from a single +5V supply, simplifying power design. The maximum supply current of 68 mA includes the reference and internal clock, making it a self-contained conversion solution. Typical applications include military avionics data acquisition, radar signal processing, industrial process control, and high-reliability test equipment. The wide temperature range and hermetic ceramic package ensure stable performance in extreme environments. The parallel interface allows direct connection to microprocessors, while the serial mode reduces pin count for space-constrained designs. When designing with the AD5214TD/883B, ensure that the analog input voltage does not exceed the supply rails and that adequate decoupling capacitors are placed near the power pins. The reference input should be bypassed with a low-ESR capacitor to maintain conversion accuracy. For best performance, use a low-impedance source to drive the analog input and minimize noise on the digital lines.
AD5412ACPZ - 12-Bit Current/Voltage Output DAC | Analog Devices
The AD5412ACPZ is a low-cost, precision, fully integrated 12-bit digital-to-analog converter (DAC) from Analog Devices that offers a programmable current source and programmable voltage output, designed to meet the requirements of industrial process control applications. It operates from a single 10.8V to 40V supply and provides a current output range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA, and a voltage output range of 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V. The device is available in a 40-lead LFCSP-VQ (6x6 mm) package, designated by the 'CP' suffix, and is specified for operation over the extended industrial temperature range of -40°C to +85°C. A digital-to-analog converter (DAC) is a device that converts digital binary data into an analog voltage or current signal. The AD5412 is a precision DAC with an integrated output amplifier and reference buffer, enabling direct interface to actuators, transmitters, and other industrial control elements. It belongs to the family of smart DACs that combine digital-to-analog conversion with programmable output ranges and diagnostic features, making it a key component in programmable logic controllers (PLCs), distributed control systems (DCS), and field transmitters. Key features of the AD5412ACPZ include a 12-bit resolution with monotonicity guaranteed, a flexible serial interface compatible with SPI, QSPI, and MICROWIRE protocols, and an on-chip precision reference (2.5V) with a temperature coefficient of 10 ppm/°C. The device also includes a HART (Highway Addressable Remote Transducer) compliant interface, allowing it to be used in smart transmitters that require superimposed digital communication on the analog current loop. The output is protected against short circuits and can drive capacitive loads up to 1 µF. Technically, the AD5412 uses a segmented architecture with a precision current-steering DAC core, followed by a programmable gain amplifier and output driver. The device includes a power-on reset circuit that ensures the output is at zero-scale or mid-scale on power-up, and a clear pin that resets the output to a defined state. The digital interface supports daisy-chaining for multiple devices on a single serial bus, and the device can be configured for either current or voltage output mode via the control register. Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. The AD5412's ability to provide both current and voltage outputs with high accuracy and low drift makes it ideal for driving valves, positioners, and other field devices. Its HART compatibility enables seamless integration into existing 4-20 mA loop infrastructure. When designing with the AD5412ACPZ, ensure that the supply voltage is adequately decoupled with a 10 µF tantalum capacitor and a 0.1 µF ceramic capacitor placed close to the AVDD and DVDD pins. The reference output should be buffered if external loads are connected, and the output amplifier's stability should be verified with the expected capacitive load. For best performance, use a clean analog ground plane and separate digital and analog supply traces.
AD5412ACPZ-REEL7 - 12-Bit DAC with Current/Voltage Output | ADI
The AD5412ACPZ-REEL7 is a low-cost, precision, fully integrated 12-bit digital-to-analog converter (DAC) from Analog Devices, offering a programmable current source and programmable voltage output. It is designed to meet the requirements of industrial process control applications, providing a single-channel output with serial input interface. The device operates from a 40-lead LFCSP-VQ (6x6 mm) package, ensuring compactness for space-constrained designs. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current signal. The AD5412 belongs to the family of precision DACs used in industrial automation, where accurate analog output is essential for controlling actuators, valves, and transmitters. It integrates a current source and voltage output capability, making it versatile for various control loops. Key features include 12-bit resolution, a programmable current output range (typically 4-20 mA) and voltage output range (0-5 V, 0-10 V, ±5 V, ±10 V), and a serial interface compatible with SPI. The device also includes a power-on reset, ensuring the output is at a known state on power-up. Its low power consumption and wide operating temperature range (-40°C to +125°C) make it suitable for harsh industrial environments. Technically, the AD5412 uses a resistor-string architecture with an output amplifier, providing monotonic performance and low glitch energy. It includes a precision internal reference (optional external reference) and a flexible digital interface that supports daisy-chaining. The device is fully specified over the industrial temperature range, ensuring reliable operation in demanding applications. Typical applications include industrial process control, programmable logic controllers (PLCs), actuator control, and transmitter calibration. The AD5412's ability to provide both current and voltage outputs makes it ideal for interfacing with various sensors and actuators in factory automation. When designing with the AD5412, ensure proper decoupling of the power supply and reference pins. The output amplifier requires a stable supply; consider using a low-noise LDO for analog rails. Also, the thermal pad should be soldered to a large copper area for effective heat dissipation.
AD5422ACPZ - 16-Bit Current/Voltage Output DAC | Analog Devices
The AD5422ACPZ is a single-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices, designed for industrial process control applications. It provides a programmable current source and programmable voltage output, with HART connectivity capability. The device operates from a single 10.8V to 40V supply and is available in a 40-lead LFCSP-VQ (6x6 mm) package. It features a serial interface compatible with SPI, QSPI, and MICROWIRE protocols, and includes an on-chip reference and output amplifier. A DAC (digital-to-analog converter) is an electronic component that converts digital binary data into an analog voltage or current. The AD5422 is a precision DAC that integrates a current source and voltage output, making it a complete analog output stage for industrial control systems. It belongs to the family of smart DACs that combine digital-to-analog conversion with additional features like fault detection and HART communication. Key features include 16-bit resolution, a current output range of 4 mA to 20 mA (with additional ranges), a voltage output range of 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V, and a settling time of 10 µs. The device offers a total unadjusted error (TUE) of ±0.1% FSR, and includes a precision 5 ppm/°C internal reference. It also features a flexible serial interface, a power-on reset to zero-scale, and a fault alarm output. The AD5422 uses a segmented architecture with a precision resistor ladder and a high-speed output amplifier. It includes a programmable gain and offset, and supports HART signal modulation for smart transmitter applications. The device operates over a temperature range of -40°C to +85°C and is available in a lead-free, RoHS-compliant package. Typical applications include process control, PLC analog output modules, industrial automation, and HART network transmitters. The AD5422's high accuracy and flexibility make it suitable for driving actuators, valves, and other analog control elements. When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and use a clean analog ground plane. The device requires an external reference for best performance, and the output amplifier can drive capacitive loads up to 1000 pF.
AD5422ACPZ-REEL7 - 16-Bit V/I Out DAC | Analog Devices
The AD5422ACPZ-REEL7 is a single-channel, 16-bit, serial input, current source and voltage output digital-to-analog converter (DAC) from Analog Devices, designed for industrial process control applications. It is housed in a 40-lead LFCSP-VQ (6x6 mm) package and operates over a wide supply range. The device integrates a programmable current source (0 mA to 24 mA) and a programmable voltage output (0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V), making it highly versatile for actuator control, PLCs, and transmitter systems. A digital-to-analog converter (DAC) is an electronic circuit that converts digital binary data into an analog voltage or current. The AD5422 belongs to the family of precision DACs used in industrial control loops, where it translates digital setpoints from a microcontroller or FPGA into precise analog signals that drive valves, motors, or transmitters. It is a key component in the signal chain from digital control to physical actuation, bridging the digital and analog domains. Key features include 16-bit resolution, a flexible serial interface (SPI-compatible), and an on-chip precision reference. The device offers a monotonic output with low integral nonlinearity (INL) and differential nonlinearity (DNL), ensuring accurate analog representation. It also includes a HART (Highway Addressable Remote Transducer) connectivity mode, allowing the DAC to superimpose a frequency-shift keying (FSK) signal on the current loop for smart transmitter communication. The AD5422 uses a segmented architecture with a precision resistor ladder and a programmable gain amplifier to achieve its output ranges. It operates from a single 10.8 V to 40 V supply for the current loop and a separate digital supply (2.7 V to 5.5 V), enabling direct interface with low-voltage logic. The device includes a power-on reset, a clear pin, and a fault alarm output, enhancing system reliability. Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. Its high accuracy and flexible output ranges make it suitable for both current-loop and voltage-output systems, reducing component count and board space. When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and consider the thermal performance of the LFCSP package when driving high current loads. The HART mode requires careful filtering to avoid signal distortion.
AD5535ABCZ - 32-Channel 14-Bit DAC, 50-200V | Analog Devices
The AD5535ABCZ is a 32-channel, 14-bit digital-to-analog converter (DAC) with an integrated high-voltage output amplifier, manufactured by Analog Devices. It is housed in a 124-ball CSPBGA (15x15 mm) package and is specifically designed for optical microelectromechanical systems (MEMS) and other high-voltage precision control applications. The device features a full-scale output voltage programmable from 50 V to 200 V via the reference input, with a 700 μA drive capability per channel. It guarantees monotonicity and offers a 1.2 MHz channel update rate, making it suitable for high-speed, multi-channel systems. A DAC (digital-to-analog converter) is an electronic component that converts digital binary data into an analog voltage or current. The AD5535 is a high-voltage, multi-channel DAC, which falls under the category of data acquisition components, specifically within the broader family of digital-to-analog converters. These devices are essential in systems where precise analog control signals must be generated from digital processing, such as in industrial automation, test equipment, and MEMS control. The AD5535's high-voltage output capability distinguishes it from standard low-voltage DACs, enabling direct drive of actuators and other high-voltage loads. Key features of the AD5535ABCZ include its 32 independent channels, each with a 14-bit resolution, ensuring fine analog output steps. The integrated high-voltage amplifier eliminates the need for external amplification, simplifying design and reducing component count. The device also includes an integrated silicon diode for temperature monitoring, which is critical for thermal management in high-power applications. The serial interface is DSP- and microcontroller-compatible, and an asynchronous RESET facility allows for quick system initialization. From a technical perspective, the AD5535 utilizes a segmented architecture to achieve 14-bit accuracy while maintaining a small die size. The output amplifier is capable of sourcing 700 μA, which is sufficient for driving capacitive loads typical in MEMS applications. The reference input allows the full-scale output to be set between 50 V and 200 V, providing flexibility for various system requirements. The device operates over a temperature range of -10°C to +85°C, as indicated in the datasheet. Typical applications include optical MEMS systems, where precise high-voltage control of micro-mirrors or other actuators is required. It is also used in industrial process control, automated test equipment, and medical instrumentation that demands high-voltage analog outputs. The AD5535's high channel count and update rate make it ideal for multi-axis control systems. When designing with the AD5535, it is important to consider the power dissipation, as the high-voltage output stages can generate significant heat. Proper PCB layout with adequate thermal vias and a solid ground plane is recommended. Additionally, the reference input should be bypassed with a low-ESR capacitor to ensure stable operation.
AD5535ABCZ-REEL7 - 32-Channel 14-Bit DAC | Analog Devices
The AD5535ABCZ-REEL7 is a 32-channel, 14-bit digital-to-analog converter (DAC) with an integrated high-voltage output amplifier, designed for precision control in optical microelectromechanical systems (MEMS) and other high-voltage applications. Housed in a 124-ball CSPBGA (15x15 mm) package, this device offers a full-scale output voltage programmable from 50 V to 200 V via the reference input, with a 700 μA drive capability. The AD5535 guarantees monotonicity and includes an integrated silicon diode for temperature monitoring, making it suitable for demanding industrial and scientific instrumentation. A DAC is a device that converts digital signals into analog voltages or currents. The AD5535 is a specific type of DAC with multiple channels and high-voltage outputs, enabling precise control of actuators, piezoelectric devices, and other high-voltage loads. It belongs to the family of data converters, which are essential in bridging the digital and analog worlds in electronic systems. Key features include a 1.2 MHz channel update rate, an asynchronous RESET facility, and a DSP-/microcontroller-compatible serial interface. The device operates over a wide temperature range and is available in a compact CSPBGA package, facilitating high-density PCB layouts. The integrated high-voltage amplifier eliminates the need for external amplification stages, simplifying design and reducing component count. The AD5535 utilizes a segmented architecture to achieve 14-bit resolution with guaranteed monotonicity, ensuring accurate and predictable output across the full range. The high-voltage output stage is capable of driving capacitive loads typical of MEMS actuators, with a slew rate sufficient for real-time control applications. The integrated temperature diode provides a means for thermal monitoring, enabling system-level protection and calibration. Typical applications include optical MEMS mirror arrays, adaptive optics systems, precision voltage biasing, and automated test equipment. The device's ability to generate high voltages with high resolution makes it ideal for controlling piezoelectric actuators and electrostatic MEMS devices. When designing with the AD5535, it is important to consider the thermal dissipation of the high-voltage output stage and to provide adequate decoupling on the power supply pins. The reference input should be driven by a low-noise, stable voltage source to achieve optimal performance.
AD561SD/883B - 10-Bit Monolithic DAC | Analog Devices
The AD561SD/883B is a 10-bit digital-to-analog converter (DAC) from Analog Devices, featuring a high-stability voltage reference integrated on a single monolithic chip. It is packaged in a 16-pin hermetically sealed ceramic DIP (CDIP) and is designed for military temperature range operation from -55°C to +125°C. The device uses ten precision high-speed current-steering switches, a control amplifier, and a laser-trimmed thin-film SiCr resistor network to produce a fast, accurate analog output current. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD561SD/883B is a current-output DAC, meaning it outputs a current proportional to the digital input, which can be converted to a voltage using an external op-amp. DACs are fundamental building blocks in data acquisition systems, where they generate analog signals for control, waveform generation, and audio applications. The AD561SD/883B belongs to the family of precision DACs, offering 10-bit resolution and a built-in reference, simplifying system design. Key features of the AD561SD/883B include its 10-bit resolution, monolithic construction with integrated voltage reference, and military-grade screening. The device operates over the full military temperature range of -55°C to +125°C, making it suitable for aerospace and defense applications. The hermetically sealed ceramic DIP package ensures reliability in harsh environments. The laser-trimmed thin-film resistor network provides excellent linearity and accuracy, with a typical settling time of [DATA_NEEDED: settling time] and a gain error of [DATA_NEEDED: gain error]. The AD561SD/883B is designed for high-performance applications where precision and reliability are critical. Its current output can be easily converted to a voltage using an external operational amplifier, and the integrated reference eliminates the need for an external reference source. The device is pin-compatible with other members of the AD561 family, allowing for easy upgrades or replacements. The military-grade screening ensures compliance with stringent quality standards, making it ideal for mission-critical systems. Typical applications include military avionics, radar systems, industrial process control, and test and measurement equipment. The wide operating temperature range and hermetically sealed package make it suitable for extreme environments. When designing with the AD561SD/883B, ensure proper decoupling on the power supply pins and consider the output current-to-voltage conversion circuit to achieve optimal performance.
AD561TD/883B - 10-Bit DAC, Military Grade | Analog Devices
The AD561TD/883B is a low-cost, 10-bit monolithic digital-to-analog converter (DAC) manufactured by Analog Devices, designed for military-grade applications. It features a 10-bit resolution with a settling time of 500 ns, ensuring fast and accurate conversion for high-speed systems. The device operates from a single +5V supply and provides a bipolar output range of ±5V, making it suitable for a wide range of analog output applications. Housed in a 16-pin CERDIP package, the AD561TD/883B is designed for through-hole mounting, offering robust mechanical stability in harsh environments. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD561TD/883B is a specific type of DAC known as a multiplying DAC, which allows the reference voltage to be varied to produce a scaled output. This makes it highly versatile for applications requiring programmable gain or attenuation. DACs are fundamental building blocks in data acquisition systems, where they translate digital signals from microcontrollers or DSPs into analog signals for actuators, displays, or audio equipment. Key features of the AD561TD/883B include its 10-bit resolution, which provides 1024 discrete output levels, and its fast settling time of 500 ns, enabling high-speed data conversion. The device also offers a low power consumption of 150 mW, making it suitable for power-sensitive military and aerospace systems. The military temperature grade (-55°C to +125°C) ensures reliable operation in extreme environments, and the device is screened in accordance with MIL-STD-883, guaranteeing high reliability and quality. Technically, the AD561TD/883B uses an R-2R ladder network architecture, which provides excellent linearity and monotonicity. The device includes an internal precision reference, eliminating the need for external components. The output is buffered by an internal operational amplifier, allowing direct drive of loads up to 5 mA. The device also features a chip select and write control, enabling easy interface with microprocessors and digital systems. Typical applications for the AD561TD/883B include military radar systems, avionics, and precision instrumentation. Its fast settling time and high accuracy make it ideal for closed-loop control systems and waveform generation. The device is also used in automatic test equipment (ATE) and data acquisition systems where reliable, high-speed analog output is required. When designing with the AD561TD/883B, it is important to ensure proper decoupling of the power supply and reference pins to minimize noise. The output should be buffered if driving loads greater than 5 mA. Additionally, the device's military-grade screening ensures it can withstand the rigors of defense and aerospace applications.
AD567SD/883B - 12-Bit DAC, 28-CDIP | Analog Devices
The AD567SD/883B is a complete high-speed 12-bit digital-to-analog converter (DAC) from Analog Devices, featuring a high-stability buried zener voltage reference and a double-buffered input latch on a single chip. It is packaged in a 28-pin ceramic dual-in-line package (CDIP) and is designed for military and aerospace applications, meeting MIL-STD-883 Class B standards. The device provides a 12-bit resolution with a settling time of typically 500 ns, ensuring fast and accurate analog output for demanding applications. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD567SD/883B is a voltage-output DAC that uses 12 precision high-speed bipolar current-steering switches and a laser-trimmed thin-film resistor network to achieve high accuracy and fast settling. It is part of the AD567 family of DACs, which are known for their reliability and performance in industrial and military environments. Key features of the AD567SD/883B include a 12-bit resolution, a buried zener reference for low drift, a double-buffered input latch for microprocessor compatibility, and a settling time of 500 ns. The device operates from a +5V and -5V supply, with a full-scale output range of 0V to +10V. It also features a power-on reset that clears the output to zero scale, ensuring predictable startup behavior. The AD567SD/883B is designed for high-reliability applications, with a ceramic package that provides excellent thermal and mechanical stability. The device is fully specified over the military temperature range of -55°C to +125°C, making it suitable for avionics, defense systems, and other harsh environments. Its double-buffered input allows for simultaneous update of multiple DACs, which is critical in multi-channel systems. Typical applications include precision instrumentation, automatic test equipment, military radar systems, and industrial process control. The device's fast settling time and high accuracy make it ideal for waveform generation and closed-loop control systems. When designing with the AD567SD/883B, ensure proper decoupling of the power supplies and a clean analog ground plane to minimize noise. The reference output should be buffered if driving external loads. The device is a mature product and may be subject to obsolescence; verify availability before new designs.
AD570SD/883B - 8-Bit ADC, 25us, MIL-STD-883B | Analog Devices
The AD570SD/883B is a monolithic 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices, processed to MIL-STD-883B Class B for military and high-reliability applications. It integrates a DAC, voltage reference, clock, comparator, successive approximation register, and output buffers on a single chip, requiring no external components for a full-accuracy 8-bit conversion in 25 microseconds. The device operates from -15 V and +5 V supplies (also functional with -12 V) and is packaged in a side-brazed ceramic DIP-18 (SBDIP) with an operating temperature range of -55°C to +125°C. An analog-to-digital converter (ADC) is an electronic component that converts continuous analog signals into discrete digital numbers, enabling digital systems to process real-world signals. The AD570 is a successive approximation ADC, a type that uses a binary search algorithm to converge on the digital representation, balancing speed and resolution. It belongs to the broader category of data converters, which are essential in signal processing chains bridging analog sensors and digital processors. Key features include 8-bit resolution, a conversion time of 25 microseconds, and a parallel output interface with 8-bit access. The device offers unipolar and bipolar input ranges, with full-scale calibration and offset adjustments. It is guaranteed to operate with -15 V and +5 V supplies, and also supports -12 V operation. The military-grade processing ensures reliability in harsh environments, with a temperature range of -55°C to +125°C. Technically, the AD570 integrates all conversion functions on a single chip, eliminating the need for external clock or reference components. The successive approximation architecture provides a deterministic conversion time, making it suitable for real-time sampling. The device features a tri-state output buffer for bus-oriented systems, and its bipolar input capability allows direct connection to bipolar analog signals without external level shifting. Typical applications include military avionics, industrial process control, data acquisition systems, and test and measurement equipment where high reliability and wide temperature operation are critical. The AD570SD/883B is particularly suited for legacy military systems requiring a drop-in replacement for the original AD570. When designing with this device, ensure proper supply decoupling and consider the input impedance and settling time for accurate conversions. The device's parallel interface simplifies connection to microprocessors, but timing requirements must be observed for reliable data transfer.
AD571SD/883B - 10-Bit A/D Converter | Analog Devices | Military
The AD571SD/883B is a complete 10-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, designed for high-reliability military and aerospace applications. It integrates a precision voltage reference, clock, and comparator in a single 18-pin side-brazed ceramic DIP (SBDIP) package, offering a compact and robust solution for converting analog signals to digital data. The device accepts either unipolar (0 V to +10 V) or bipolar (-5 V to +5 V) analog inputs, selectable by grounding or opening a single pin, and provides true 10-bit accuracy with no missing codes over its full operating temperature range of -55°C to +125°C. An analog-to-digital converter (ADC) is an electronic component that transforms a continuous analog voltage into a discrete digital number proportional to the amplitude of the signal. The AD571SD/883B is a successive approximation register (SAR) ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed and moderate resolution, making them suitable for a wide range of data acquisition systems. In the hierarchy of signal processing, the ADC sits between the analog sensor/amplifier and the digital processor, serving as the critical bridge that enables digital systems to interpret real-world analog signals. Key features of the AD571SD/883B include a 10-bit resolution, a maximum conversion time of 25 microseconds, and a parallel digital interface for easy connection to microprocessors and digital logic. The device operates from dual supplies of +5 V and -12 V or -15 V, and includes an internal clock and reference, eliminating the need for external components. The military-grade screening (883B) ensures compliance with MIL-STD-883, providing enhanced reliability for demanding environments. Technically, the AD571SD/883B employs a laser-trimmed thin-film resistor network and a high-speed comparator to achieve its accuracy. The device features a full-scale calibration capability, allowing users to adjust the gain and offset for precise measurements. The bipolar offset and unipolar offset pins provide flexibility in configuring the input range, while the differential nonlinearity is guaranteed to be within ±1 LSB over the entire temperature range. Typical applications include military avionics, radar systems, industrial process control, and high-reliability data acquisition systems. The device's wide operating temperature range and hermetic ceramic package make it ideal for harsh environments where standard commercial ADCs would fail. When designing with the AD571SD/883B, ensure that the analog input is properly buffered and that the power supplies are well-decoupled to minimize noise. The internal reference is trimmed at the factory, but external calibration may be required for absolute accuracy in critical applications.
AD574ASE/883B - 12-Bit SAR ADC, Military Grade | Analog Devices
The AD574ASE/883B is a complete 12-bit successive-approximation analog-to-digital converter (ADC) from Analog Devices, designed for high-reliability military and aerospace applications. It integrates a precision voltage reference, clock, and 3-state output buffers for direct interface to 8- or 16-bit microprocessor buses. The device operates over the full military temperature range of -55°C to +125°C and is available in a 28-lead ceramic LCC (11.43x11.43 mm) package, with screening to MIL-STD-883 Class B. An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital values. The AD574A family is a classic example of a successive-approximation register (SAR) ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their good balance of speed, resolution, and power consumption, making them suitable for a wide range of data acquisition systems. The AD574A is a complete converter, meaning it includes all necessary functions on-chip, such as the reference and clock, simplifying system design. Key features of the AD574ASE/883B include 12-bit resolution, a maximum conversion time of 35 microseconds, and guaranteed no missing codes over temperature. It supports both 8-bit and 16-bit microprocessor bus interfaces, allowing flexible integration with various digital systems. The device also offers a bipolar input range of -10V to +10V, making it suitable for industrial and instrumentation applications. The military-grade screening ensures reliable operation in harsh environments. Technically, the AD574A uses a laser-trimmed thin-film resistor network and an internal reference to achieve high accuracy. The device is designed to operate without external components for the reference and clock, reducing system complexity. The 3-state output buffers allow direct connection to a data bus, and the device can be configured for either 8-bit or 16-bit data transfer. The military version (883B) undergoes additional testing and screening to meet stringent reliability standards. Typical applications include military avionics, radar systems, industrial process control, and test and measurement equipment. The wide input range and high accuracy make it ideal for precision data acquisition in harsh environments. The device's robustness and long-term availability (often through authorized distributors like Rochester Electronics) make it a preferred choice for legacy system maintenance. When designing with the AD574ASE/883B, ensure proper decoupling on the power supply pins and a clean analog ground plane to minimize noise. The reference and clock are internal, but external bypass capacitors are recommended for optimal performance. Also, consider the conversion time of 35 µs when planning system throughput.
AD574ATE/883B - 12-Bit SAR ADC, Military Grade | Analog Devices
The AD574ATE/883B is a complete 12-bit successive-approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It integrates all analog and digital functions on a single chip using Analog Devices' Bipolar/I2L process, including a high-precision voltage reference and clock, ensuring full-rated performance without external circuitry. The device features a 3-state output buffer for direct interface to an 8- or 16-bit microprocessor bus, making it ideal for industrial and military data acquisition systems. Housed in a 28-lead ceramic leadless chip carrier (LCC) with dimensions 11.43x11.43 mm, it operates over the military temperature range and is processed to MIL-STD-883C Class B standards. An analog-to-digital converter (ADC) is an electronic component that converts continuous analog signals into discrete digital numbers. The AD574A is a successive-approximation ADC, which uses a binary search algorithm to determine the digital output, offering a good balance of speed and resolution. As a 12-bit ADC, it provides 4096 discrete levels, enabling high-resolution measurement of analog signals. This device belongs to the family of data acquisition components, which are essential in bridging the analog and digital domains in systems such as industrial process control, military avionics, and scientific instrumentation. Key features of the AD574ATE/883B include 12-bit resolution, a single input channel, and a successive-approximation register (SAR) architecture. It operates from a bipolar power supply, and its parallel word access allows for fast data transfer to microprocessors. The device is available in a 28-LCC package, which is suitable for surface-mount assembly and provides good thermal and electrical performance. The military-grade processing ensures reliability in harsh environments, with a temperature grade of MILITARY, indicating operation from -55°C to +125°C. Technically, the AD574A integrates a precision voltage reference and clock on-chip, eliminating the need for external components. The Bipolar/I2L process enables high-speed operation and low power consumption. The device includes a 3-state output buffer, allowing direct connection to a microprocessor bus without additional interface logic. The conversion time is typically 25 microseconds, providing a throughput of 40 kSPS. The device also features a status output to indicate when conversion is complete, simplifying system integration. Typical applications include military avionics, industrial process control, medical instrumentation, and scientific data acquisition systems. The AD574ATE/883B is particularly suited for applications requiring high accuracy and reliability in extreme environments, such as aerospace and defense systems. Its parallel interface simplifies connection to microcontrollers and DSPs, making it a versatile choice for embedded systems. When designing with this device, ensure proper decoupling of the power supply pins and a clean analog ground to achieve specified accuracy. The reference voltage is internally generated, but external filtering may be required for optimal performance. The device is not RoHS compliant due to its military-grade hermetic package, which is a consideration for applications with environmental compliance requirements.
AD650SD/883B - V/F & F/V Converter 1MHz | Analog Devices
The AD650SD/883B is a monolithic voltage-to-frequency (V/F) and frequency-to-voltage (F/V) converter from Analog Devices, designed for high-accuracy analog-to-digital conversion and precision frequency measurement. It operates at a maximum frequency of 1 MHz with a nonlinearity of ±0.1% (typical), making it suitable for demanding industrial and aerospace applications. The device is housed in a 14-pin ceramic dual-in-line package (CDIP) and is specified for the full military temperature range of -55°C to +125°C, ensuring reliable operation in extreme environments. A voltage-to-frequency converter (VFC) is an electronic circuit that converts an analog input voltage into a proportional output frequency. This type of converter is widely used in analog-to-digital conversion, where the frequency output can be easily counted by digital logic, providing high resolution and noise immunity. The AD650SD/883B also operates in the reverse mode as a frequency-to-voltage converter, enabling closed-loop control and frequency measurement applications. As a member of the voltage-to-frequency converter family, it bridges the analog and digital domains, offering a simple and robust interface for data acquisition systems. Key features of the AD650SD/883B include a 1 MHz full-scale frequency, ±0.1% typical nonlinearity, and a wide supply voltage range of ±9V to ±18V. The device offers both single-ended and differential input configurations, and its output is a square wave that can drive TTL or CMOS logic directly. The ceramic package provides excellent thermal stability and hermetic sealing, making it ideal for military and aerospace applications where reliability is critical. Technically, the AD650SD/883B uses a charge-balancing architecture that ensures high linearity and temperature stability. The input current is integrated over a fixed time period, and the output frequency is proportional to the input voltage. This design minimizes drift and provides excellent long-term stability. The device also includes an internal reference and a precision comparator, reducing the need for external components. Typical applications include precision analog-to-digital conversion, frequency-to-voltage conversion for tachometers and flow meters, and isolated signal transmission in industrial control systems. The AD650SD/883B is also used in aerospace telemetry and test instrumentation where high accuracy and wide temperature range are required. When designing with the AD650SD/883B, ensure proper decoupling of the power supply pins with 0.1µF ceramic capacitors placed close to the device. The input signal should be filtered to remove high-frequency noise, and the output frequency should be buffered if driving long cables. The device's power dissipation is moderate, but thermal management is recommended for high-temperature environments.
AD6644 - 14-Bit 65 MSPS ADC | Analog Devices | Wideband
The AD6644 is a high speed, high performance, monolithic 14-bit analog-to-digital converter (ADC) from Analog Devices. It is designed for wideband, multichannel, multimode receivers and is part of the SoftCell transceiver chipset. The device operates at guaranteed sample rates of 65 MSPS (with a 40 MSPS version available) and provides CMOS-compatible digital outputs in twos complement format. It is packaged in a 52-lead Plastic Low Profile Quad Flat Pack (LQFP) and is specified for operation from -25°C to +85°C. An analog-to-digital converter (ADC) is a critical component in signal processing chains that converts continuous analog signals into discrete digital values for processing by digital systems. The AD6644 is a high-speed, high-resolution ADC, positioned in the hierarchy of data converters: ADC -> high-speed ADC -> wideband ADC -> IF-sampling ADC. It integrates a track-and-hold (T/H) circuit and reference, providing a complete conversion solution on-chip, which simplifies system design and reduces external component count. Key features of the AD6644 include a 65 MSPS guaranteed sample rate, 100 dB multitone SFDR, and low power dissipation of 1.3 W. It features differential analog inputs, which improve common-mode noise rejection, and digital outputs that are 3.3 V CMOS-compatible, ensuring easy interfacing with modern digital logic. The device uses a three-stage subrange architecture, achieving high accuracy and speed while maintaining low power and small die size. The AD6644 is built on Analog Devices' high speed complementary bipolar process (XFCB) and uses an innovative multipass circuit architecture. This design enables high dynamic performance, making it suitable for demanding applications such as digital receivers, cellular base stations, and test equipment. The device's wideband capability allows direct IF sampling, reducing the need for multiple downconversion stages. Typical applications include multichannel, multimode receivers, software-defined radios, cellular infrastructure, and radar systems. The AD6644's high SFDR and low noise make it ideal for these applications where signal fidelity is critical. Its differential inputs and CMOS outputs simplify integration with FPGAs and DSPs. When designing with the AD6644, careful attention to decoupling and grounding is essential to achieve optimal performance. The datasheet provides detailed recommendations for power supply decoupling and PCB layout to minimize noise and ensure accurate conversion.
AD664TD-UNI/883B - 12-Bit Quad DAC, Military | Analog Devices
The AD664TD-UNI/883B is a monolithic 12-bit quad digital-to-analog converter (DAC) from Analog Devices, designed for precision multi-channel voltage-output applications. It integrates four complete 12-bit DACs on a single chip, each with a double-buffered input latch structure and data readback function. The device operates from a single external reference and is available in a 28-pin side-brazed ceramic DIP (CDIP) package, screened to military standards (MIL-STD-883). It supports unipolar (UNI) output range with a gain of one or two times the reference voltage, and features a microprocessor-compatible parallel interface for all read and write operations. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD664 is a quad DAC, meaning it contains four independent DAC channels on one chip, enabling simultaneous multi-channel analog output from a single digital interface. This device belongs to the family of data converters, which are essential in mixed-signal systems where digital processing meets the analog world. The AD664's architecture uses the BiMOS II process, combining bipolar and CMOS transistors, along with laser-trimmed thin-film resistors and double-level metal interconnects to achieve high accuracy and stability. Key features of the AD664TD-UNI/883B include four complete voltage-output DACs, data register readback, reset-to-zero override, multiplying operation, and double-buffered latches. The device offers a settling time of 10 microseconds (as per Xecor comparison data) and operates over the full military temperature range of -55°C to +125°C. The package is a 28-pin side-brazed ceramic DIP, which is suitable for high-reliability applications. The device is RoHS non-compliant, reflecting its military-grade heritage. The AD664 uses a double-buffered input latch structure, allowing all four DACs to be updated simultaneously, which is critical for applications requiring synchronized analog outputs. The data readback function enables verification of written data, enhancing system diagnostics. The reset-to-zero override forces all outputs to zero, useful for system initialization. The multiplying operation allows the reference voltage to be varied, enabling programmable gain or attenuation. Typical applications include military avionics, industrial process control, automatic test equipment (ATE), and precision instrumentation where multiple analog outputs are needed. The military screening ensures reliability in harsh environments. The parallel interface simplifies connection to microprocessors and DSPs. When designing with this device, ensure adequate decoupling on the power supply and reference pins, and consider the settling time when updating multiple channels. The device is obsolete, so verify availability and consider alternatives for new designs.
AD667SD/883B - 12-Bit DAC, 28-CDIP | Analog Devices
The AD667SD/883B is a complete voltage output 12-bit digital-to-analog converter (DAC) from Analog Devices, featuring a high stability buried Zener voltage reference and a double-buffered input latch on a single chip. It is packaged in a 28-pin ceramic DIP (CDIP) and is designed for precision industrial and military applications. The device uses 12 precision high-speed bipolar current steering switches to achieve a settling time of 3 microseconds, ensuring fast and accurate analog output. A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD667SD/883B is a voltage-output DAC, meaning it directly provides a voltage proportional to the digital input. It belongs to the family of data conversion ICs, which are essential in systems that interface digital processing with the analog world, such as microcontrollers, DSPs, and industrial control systems. The AD667 series is known for its high precision and stability, making it suitable for applications requiring accurate analog signals. Key features of the AD667SD/883B include 12-bit resolution, a single channel, and a settling time of 3 microseconds. The device operates from a +5V and -5V power supply, and it includes an internal buried Zener reference that provides excellent temperature stability. The double-buffered input latch allows for simultaneous updating of multiple DACs in a system, which is critical in multi-channel applications. The 28-pin CDIP package is hermetically sealed, offering enhanced reliability in harsh environments. Technically, the AD667SD/883B utilizes a current-steering architecture with a precision R-2R ladder network. The buried Zener reference ensures low noise and low drift over temperature, which is essential for high-accuracy applications. The device is designed to be microprocessor-compatible, with a parallel interface that can be easily connected to standard digital buses. The output voltage range is typically 0V to +10V or +/-5V, depending on the configuration, and it can drive loads up to 5mA. Typical applications include industrial process control, test and measurement equipment, and military/aerospace systems where high precision and reliability are paramount. The AD667SD/883B is also used in audio equipment for crystal-clear signal generation, as noted in comparison data. Its fast settling time and low glitch energy make it suitable for waveform generation and closed-loop control systems. When designing with the AD667SD/883B, it is important to provide adequate decoupling on the power supply pins and to ensure a clean analog ground plane. The reference output should be buffered if external loads are connected. Additionally, the digital inputs should be properly terminated to avoid noise-induced errors. The device is specified for operation over the full military temperature range of -55C to +125C, making it suitable for demanding environments.
AD6705 - 8-Bit Signal Conditioning ADC | Analog Devices
The AD6705 is an 8-bit, low-cost, signal conditioning analog-to-digital converter (ADC) from Analog Devices, designed for aerospace and industrial applications requiring precise analog-to-digital conversion with minimal external components. It integrates a complete signal conditioning front-end, including an instrumentation amplifier and a successive approximation register (SAR) ADC, enabling direct interface to sensors and transducers. The device operates from a single supply, simplifying power design and reducing system cost. An ADC (analog-to-digital converter) is a critical component in data acquisition systems that converts continuous analog signals into discrete digital values for processing by microcontrollers, DSPs, or FPGAs. The AD6705 belongs to the family of signal conditioning ADCs, which combine amplification, filtering, and conversion in a single package, reducing board space and improving noise immunity. This integration is essential in aerospace and industrial environments where signal integrity and reliability are paramount. Key features of the AD6705 include an 8-bit resolution, a single-supply operation, and a built-in signal conditioning front-end that accepts a wide range of input signals. The device offers a low-cost solution for applications that do not require high-resolution conversion but demand robustness and ease of use. Its aerospace-grade qualification ensures operation over extended temperature ranges and harsh conditions. Technically, the AD6705 employs a SAR architecture, which provides fast conversion times and low power consumption. The integrated instrumentation amplifier allows direct connection to bridge sensors, thermocouples, and other low-level signals, eliminating the need for external gain stages. The device also includes an internal reference, further reducing external component count. Typical applications include aerospace telemetry, industrial process control, and portable instrumentation. In aerospace, the AD6705 is used for monitoring pressure, temperature, and position sensors, where its reliability and signal conditioning capabilities are critical. In industrial settings, it interfaces with transducers in control loops, providing accurate digital data for process automation. When designing with the AD6705, ensure proper decoupling of the power supply and careful layout of the analog input traces to minimize noise. The device's single-supply operation simplifies power design, but attention to reference stability is necessary for accurate conversions.
AD674BTE/883B - 12-Bit SAR ADC, 28-CDIP | Analog Devices
The AD674BTE/883B is a complete 12-bit successive approximation analog-to-digital converter (ADC) from Analog Devices, featuring an internal high-precision voltage reference and clock. It is packaged in a 28-pin ceramic dual-in-line package (CDIP) and is designed for direct interface to 8- and 16-bit microprocessor buses via three-state output buffers. The device operates from ±12V and +5V supplies and converts in a maximum of 15 microseconds, making it suitable for high-speed data acquisition systems. An analog-to-digital converter (ADC) is an electronic component that converts a continuous analog voltage into a discrete digital representation. The AD674BTE/883B is a successive approximation register (SAR) ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are known for their high speed and moderate resolution, making them ideal for industrial control, instrumentation, and data acquisition. The AD674B family is pin-compatible with the industry-standard AD574A but offers faster conversion time and lower power consumption. Key features of the AD674BTE/883B include 12-bit resolution, a maximum conversion time of 15 µs, and an internal 10V reference. It accepts bipolar input ranges of ±5V and ±10V, as well as unipolar 0V to 10V and 0V to 20V, selectable via pin strapping. The device includes a three-state output buffer for direct bus interfacing and operates over the extended temperature range of -55°C to +125°C, meeting MIL-STD-883B standards. Technically, the AD674BTE/883B integrates a precision voltage reference, clock, and comparator on-chip, reducing external component count. The SAR architecture ensures monotonicity and no missing codes over the full temperature range. The device features a 12-bit parallel output with a status pin (STS) that indicates conversion completion, simplifying microprocessor handshaking. The 28-pin CDIP package provides excellent thermal and mechanical stability for harsh environments. Typical applications include military and aerospace data acquisition, industrial process control, medical instrumentation, and scientific analysis equipment. The device's wide operating temperature range and high reliability make it suitable for mission-critical systems where accuracy and durability are paramount. When designing with the AD674BTE/883B, ensure proper decoupling of the power supplies and a clean analog ground plane to minimize noise. The internal reference can be overridden by an external reference for improved accuracy, but the internal reference is sufficient for most applications. The conversion start (CE, CS, R/C) control pins allow flexible timing, and the STS pin can be used to trigger interrupts or polling routines.
AD676TD/883B - 16-Bit 100kSPS SAR ADC | Analog Devices
The AD676TD/883B is a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices, designed for high-precision data acquisition. It features a parallel interface and operates at a sampling rate of 100 kSPS, making it suitable for industrial and military applications. The device is packaged in a 28-pin ceramic dual in-line package (CDIP) and is qualified to MIL-STD-883B standards, ensuring reliability in harsh environments. An ADC is an electronic component that converts continuous analog signals into discrete digital values. The AD676TD/883B is a specific type of ADC known as a SAR ADC, which uses a binary search algorithm to determine the digital output. SAR ADCs are valued for their high resolution, low power consumption, and fast conversion times, making them ideal for applications such as data acquisition systems, industrial process control, and medical instrumentation. The AD676TD/883B is part of the broader category of data converters, which are essential in bridging the analog and digital domains in electronic systems. Key features of the AD676TD/883B include its 16-bit resolution, which provides 65,536 discrete levels, and its 100 kSPS sampling rate, enabling accurate capture of dynamic signals. The parallel output interface simplifies connection to microprocessors and DSPs. The device operates from a single +5V supply and includes an internal reference and sample-and-hold amplifier, reducing external component count. The MIL-STD-883B qualification ensures it meets stringent military specifications for temperature range, reliability, and quality. Technically, the AD676TD/883B uses a charge redistribution architecture with a precision comparator and a capacitive DAC. It provides an analog ground sense pin for accurate input grounding and separate analog and digital grounds to minimize noise coupling. The device offers a full-scale input range of ±5V and a signal-to-noise ratio (SNR) of typically 90 dB, ensuring high fidelity conversion. The conversion time is 10 µs, and the device features a busy output to indicate conversion completion. Typical applications include military avionics, industrial automation, and high-end test equipment. In avionics, the AD676TD/883B is used for flight control and navigation systems where precision and reliability are critical. In industrial settings, it is employed in process control loops and vibration analysis. The device's parallel interface and high resolution make it suitable for multi-channel data acquisition systems. When designing with the AD676TD/883B, ensure proper decoupling of the power supply and careful layout of the analog and digital grounds to maintain accuracy. The analog input should be driven by a low-impedance source to avoid sampling errors. The device is now obsolete, so designers should consider alternative parts for new designs.