Interface ICs
Subcategories
Products (22)
ADG1233YCPZ-REEL7 - Triple SPDT Analog Switch | Analog Devices
The ADG1233YCPZ-REEL7 is a monolithic iCMOS® analog switch from Analog Devices, integrating three independently selectable single-pole, double-throw (SPDT) switches in a compact 16-lead LFCSP-VQ (4x4 mm) package. It operates over a wide supply range of ±15 V or +12 V, with a low on-resistance of 120 Ω (typical) and ultra-low capacitance of 1.5 pF off capacitance, making it ideal for high-performance signal routing in precision instrumentation, audio, and data acquisition systems. An analog switch is a semiconductor device that selectively connects or disconnects an analog signal path under digital control. It is a fundamental building block in signal routing, multiplexing, and sample-and-hold circuits. The ADG1233 belongs to the family of analog switches and multiplexers, which are part of the broader category of interface ICs and signal conditioning components. Its iCMOS® (industrial CMOS) process technology ensures low power consumption and high voltage handling, bridging the gap between traditional CMOS and higher-voltage bipolar processes. Key features include break-before-make switching action, which prevents momentary shorting when switching channels, and an EN input that enables or disables the entire device. The switch is fully specified with 3 V logic-compatible inputs, allowing direct interface with low-voltage digital controllers. Rail-to-rail operation ensures minimal signal distortion across the full supply range. The 1.5 pF off capacitance and 0.5 pC charge injection minimize signal degradation in high-frequency and precision applications. The ADG1233 utilizes a proprietary iCMOS® process that combines the advantages of high-voltage CMOS with low power dissipation. This architecture enables the device to handle ±15 V supplies while maintaining low leakage currents and fast switching speeds. The break-before-make action is implemented through internal timing circuitry, ensuring reliable channel isolation during transitions. The device is available in a 16-lead LFCSP-VQ package, which offers excellent thermal performance and a small footprint for space-constrained designs. Typical applications include audio signal routing, precision data acquisition systems, automatic test equipment (ATE), and medical instrumentation. The low capacitance and charge injection make it particularly suitable for high-speed analog signals, while the wide supply range accommodates both bipolar and single-supply designs. The EN pin provides a convenient means of power-down or signal isolation in multi-channel systems. When designing with the ADG1233, ensure that the digital control signals are within the specified logic thresholds and that the supply voltages are properly decoupled with 0.1 µF capacitors close to the VDD and VSS pins. The break-before-make feature eliminates the need for external timing circuits, but the user should verify that the switching time meets system requirements.
ADG431BRZ-REEL7 - Quad SPST Analog Switch | Analog Devices
The ADG431BRZ-REEL7 is a monolithic CMOS analog switch IC from Analog Devices, featuring four independently selectable SPST (Single-Pole Single-Throw) switches. It is designed on an enhanced LC2MOS process, which provides low power dissipation while delivering high switching speed and low on-resistance. The device operates with a logic low on the control input to turn on each switch, and each switch conducts equally well in both directions when ON. The ADG431BRZ-REEL7 is offered in a 16-pin SOIC package, suitable for surface-mount applications. Analog switch ICs are essential components in signal routing applications, allowing analog signals to be selectively connected or disconnected from a circuit. They are used in audio, video, data acquisition, and communication systems to manage signal paths without mechanical relays. The ADG431BRZ-REEL7 belongs to the family of analog switches, multiplexers, and demultiplexers, which are critical for signal integrity and system flexibility. Key features of the ADG431BRZ-REEL7 include a maximum on-resistance of 24 ohms, which ensures minimal signal attenuation, and a wide operating temperature range of -40°C to +85°C, making it suitable for industrial environments. The device is RoHS compliant and lead-free, meeting modern environmental standards. Its low power dissipation and high switching speed make it ideal for battery-powered and high-frequency applications. Technically, the ADG431BRZ-REEL7 is built on the LC2MOS process, which combines the benefits of CMOS and linear technologies, resulting in low power consumption and high performance. The device features glitch-free switching, which prevents unwanted transients during state changes, and it supports bidirectional analog signals, allowing flexible signal routing. The 16-pin SOIC package provides a compact footprint for space-constrained designs. Typical applications for the ADG431BRZ-REEL7 include audio signal routing, data acquisition systems, communication systems, and test equipment. Its low on-resistance and high switching speed make it suitable for precision analog signal switching, while its wide temperature range ensures reliable operation in harsh environments. When designing with this device, it is important to consider the on-resistance and its effect on signal integrity, especially in high-frequency applications. Proper decoupling and layout practices should be followed to minimize parasitic effects and ensure optimal performance.
ADN4624BCPZ - Quad 2.5Gbps LVDS Isolator | Analog Devices
The ADN4624BCPZ is a quad-channel, signal-isolated, low-voltage differential signaling (LVDS) buffer from Analog Devices that operates at data rates up to 2.5 Gbps with very low jitter. It integrates Analog Devices' iCoupler technology, enhanced for high-speed operation, to provide drop-in galvanic isolation of LVDS signal chains. The device is available in a 32-lead WFQFN exposed pad package (LFCSP) and supports a wide supply range of 1.7 V to 1.9 V on both VDD1 and VDD2, with a typical supply of 1.8 V. It provides 5700 Vrms isolation voltage and a common-mode transient immunity (CMTI) of 40 kV/µs, making it suitable for industrial and medical applications where robust isolation is critical. A digital isolator is a device that transfers digital signals across an isolation barrier, typically using capacitive, inductive, or optical coupling, to protect sensitive circuitry from high voltages, ground loops, and noise. In the hierarchy of signal conditioning, a digital isolator sits between the digital signal source and the receiving logic, ensuring signal integrity and safety. The ADN4624BCPZ specifically isolates LVDS signals, which are differential, low-voltage, high-speed signals used in applications like data acquisition, industrial networking, and medical imaging. Key features of the ADN4624BCPZ include four isolated LVDS channels (4+0 configuration), a data rate of 2.5 Gbps per channel, and very low jitter, which is essential for high-speed serial links. The device also features a refresh mechanism that monitors input and output states to ensure they remain the same in the absence of data transitions, such as at power-on. The 1.8 V supplies for the LVDS and isolator circuits enable low power consumption while maintaining high-speed operation. Technically, the ADN4624BCPZ uses iCoupler technology, which employs chip-scale transformers to couple signals across the isolation barrier. This approach provides superior performance compared to optocouplers in terms of speed, power, and reliability. The device is designed to meet the stringent requirements of industrial automation, motor control, and medical equipment, where isolation and signal integrity are paramount. Typical applications include isolated LVDS interfaces in data acquisition systems, industrial fieldbus networks, and medical imaging equipment. The ADN4624BCPZ is also used in test and measurement instruments where high-speed data transfer with galvanic isolation is required. When designing with this device, ensure that the supply voltages are within the specified range and that proper decoupling capacitors are placed close to the VDD pins. The exposed pad should be soldered to the PCB ground plane for optimal thermal performance. Also, consider the CMTI rating when operating in environments with high voltage transients.
ADN4624BCPZ-RL7 - Quad LVDS Isolator 2.5Gbps | Analog Devices
The ADN4624BCPZ-RL7 is a quad-channel, signal-isolated, low-voltage differential signaling (LVDS) buffer from Analog Devices that operates at data rates up to 2.5 Gbps with very low jitter. It integrates Analog Devices' iCoupler technology, enhanced for high-speed operation to provide drop-in galvanic isolation of LVDS signal chains. The device is available in a 32-lead WFQFN exposed pad package (CSP) and provides 5.7 kV rms isolation voltage with a common-mode transient immunity (CMTI) of 40 kV/µs. A digital isolator is a component that provides galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. In the hierarchy of isolation components, a digital isolator is a type of signal isolator, which falls under the broader category of isolation components used in power management and signal conditioning. The ADN4624 specifically isolates LVDS signals, which are differential, low-voltage, high-speed signals commonly used in high-speed data transmission. Key features include four isolated LVDS channels (4+0 configuration), support for 1.7 V to 1.9 V supply voltages on both sides (VDD1 and VDD2), and an operating temperature range of -40°C to +125°C. The device ensures very low jitter, making it suitable for high-speed serial links where signal integrity is critical. The 5.7 kV rms isolation rating provides robust protection against voltage transients and ground potential differences. Technically, the ADN4624 uses iCoupler technology, which employs chip-scale transformers to transmit data across the isolation barrier, offering advantages over optocouplers in terms of speed, power consumption, and reliability. The device supports AC coupling and/or level shifting to LVDS receivers and from LVDS drivers, simplifying interface design. The 32-lead WFQFN package with exposed pad aids in thermal management and is suitable for space-constrained applications. Typical applications include isolated high-speed data acquisition systems, industrial fieldbus interfaces, medical equipment requiring patient isolation, and communication backplanes. The device is ideal for systems where high-speed data must cross an isolation barrier without compromising signal integrity. When designing with the ADN4624, ensure proper PCB layout with adequate spacing for isolation, and place decoupling capacitors close to the VDD1 and VDD2 pins. The exposed pad should be connected to the appropriate ground plane for thermal performance.
ADUM1201ARZ - Dual-Channel Digital Isolator | Analog Devices
The ADUM1201ARZ is a dual-channel digital isolator from Analog Devices, Inc., based on the proprietary iCoupler technology. It provides 2500Vrms isolation with a data rate of 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in an 8-pin SOIC (0.154", 3.90mm width) package, making it suitable for space-constrained applications. It operates with a supply voltage range of 3.0V to 5.5V on both sides, allowing flexible interfacing with different logic levels. A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass across the isolation barrier. Unlike optocouplers, which use LEDs and photodiodes, iCoupler devices use monolithic transformers and high-speed CMOS to achieve isolation. This approach eliminates the uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects associated with optocouplers. Digital isolators are essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation, such as in industrial automation, medical equipment, and communication systems. Key features of the ADUM1201ARZ include its dual-channel configuration with 1/1 channel directionality, meaning one channel transmits data in each direction. The device supports data rates up to 1Mbps, making it suitable for low-to-moderate speed communication interfaces like SPI, UART, and GPIO isolation. The 25kV/µs CMTI ensures reliable operation in noisy environments, preventing false triggering due to fast transients. The iCoupler technology also consumes significantly less power than optocouplers, with typical quiescent current in the microampere range. The ADUM1201ARZ features a patented refresh mechanism that ensures DC correctness in the absence of input logic transitions and during power-up/power-down conditions. This is critical for maintaining the integrity of static signals across the isolation barrier. The device is available in both standard and automotive-grade versions, with the ADUM1201W variants qualified for 125°C operation. The 8-pin SOIC package is widely used and easy to integrate into existing PCB designs. Typical applications include isolating SPI and UART interfaces in industrial control systems, providing isolation in medical monitoring equipment, and protecting sensitive electronics in communication infrastructure. The device is also used in power supply control and motor drive circuits where high-voltage transients are present. Its small footprint and low power consumption make it ideal for portable and battery-powered devices. When designing with the ADUM1201ARZ, it is important to ensure proper power supply decoupling on both sides of the isolation barrier. Place 0.1µF capacitors close to the VDD1 and VDD2 pins to minimize noise. Additionally, consider the maximum data rate and CMTI requirements of your application to ensure the device meets your performance needs.
ADUM141D - Quad Digital Isolator, 150Mbps | Analog Devices
The ADUM141D is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It combines high-speed CMOS and monolithic air core transformer technology to provide outstanding performance superior to optocoupler alternatives. The device offers a 3:1 channel configuration (three forward channels and one reverse channel) with an input disable function, enabling flexible bidirectional isolation in a single package. It is available in a 16-lead SOIC package and supports data rates up to 150 Mbps, with a common-mode transient immunity (CMTI) of 75 kV/µs (for the BRWZ variant) or 100 kV/µs (for the automotive-qualified variants). The ADUM141D operates over a wide supply range of 1.8 V to 5.5 V, providing level translation across the isolation barrier, and is specified for operation from -40°C to +125°C. Digital isolators are electronic components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. They are essential in applications where safety and signal integrity are critical, such as industrial automation, medical equipment, and communication systems. Unlike optocouplers, digital isolators offer higher speed, better timing accuracy, and longer lifespan, making them the preferred choice for modern designs. Key features of the ADUM141D include a maximum propagation delay of 13 ns and pulse width distortion of less than 3 ns at 5 V operation, ensuring precise signal transmission. The device also features fail-safe high or low output options, which define the output state when the input power is not applied or inputs are disabled, enhancing system safety. The input disable function allows the outputs to be placed in a high-impedance state, useful for multiplexing or power saving. The device is RoHS compliant and supports high-temperature operation up to 125°C, making it suitable for harsh environments. The ADUM141D uses iCoupler technology, which employs chip-scale transformer coils separated by polyimide insulation layers. This architecture ensures dc correctness in the absence of input logic transitions, a significant advantage over optocouplers that require continuous input current. The device also provides low dynamic power consumption, making it energy-efficient for battery-powered applications. Typical applications include general-purpose multichannel isolation, serial peripheral interface (SPI) isolation, data converter isolation, and industrial fieldbus communication. The high CMTI and fast data rates make it ideal for motor control, power inverters, and isolated ADC/DAC interfaces. When designing with the ADUM141D, ensure proper PCB layout with adequate creepage and clearance distances for the required isolation rating. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The input disable pins (DISABLE1 and DISABLE2) can be used to control the outputs, but must be handled carefully to avoid unintended state changes.
ADUM141D0BRWZ - 4-Ch 150Mbps Digital Isolator | Analog Devices
The ADUM141D0BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides 3.75 kV RMS isolation with a data rate of up to 150 Mbps, making it suitable for high-speed signal isolation in industrial, medical, and communication systems. The device is offered in a 16-lead SOIC-W (wide body) package, which is pin-compatible with other members of the ADuM141D family. Digital isolators are components that transfer digital signals across an isolation barrier without a direct electrical connection, using capacitive or magnetic coupling. They are essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation. The ADUM141D0BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. Key features of the ADUM141D0BRWZ include a 3:1 channel configuration (three forward and one reverse channel), a wide supply voltage range of 1.7V to 5.5V, and a high common-mode transient immunity (CMTI) of 75 kV/µs. The device also features a default output state of low (0) on the reverse channel, which is indicated by the '0' in the part number. The propagation delay is typically 7.2 ns, and the device operates over a temperature range of -40°C to +125°C. The ADUM141D0BRWZ is designed for general-purpose multichannel isolation, SPI/data converter isolation, and industrial field bus isolation. Its high data rate and robust isolation make it ideal for applications such as motor drives, power inverters, and medical equipment where signal integrity and safety are critical. The wide supply voltage range allows operation from both 3.3V and 5V systems, simplifying design. When designing with the ADUM141D0BRWZ, it is important to ensure proper power supply decoupling with 0.1 µF capacitors close to the VDD1 and VDD2 pins. The input and output sides are isolated, so separate ground planes are required. The device is RoHS compliant and lead-free, meeting environmental standards for modern electronic designs.
ADUM141D0BRWZ-RL7 - Quad Digital Isolator 150Mbps | Analog Devices
The ADUM141D0BRWZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology to combine high-speed CMOS and monolithic air core transformer technology. It provides outstanding performance superior to optocouplers and other integrated couplers. This device offers 4 channels with a 3:1 channel directionality (three forward, one reverse), supporting data rates up to 150 Mbps. It is housed in a 16-lead SOIC-W (wide body) package with 3750 Vrms isolation rating and 75 kV/µs common-mode transient immunity (CMTI). The operating voltage range is 1.7 V to 5.5 V on both VDD1 and VDD2, making it suitable for low-voltage applications. The ADUM141D0BRWZ-RL7 is designed for robust communication in harsh environments, ensuring signal integrity across isolation barriers. A digital isolator is a device that transfers digital signals between two electrically isolated domains, preventing DC current flow while allowing AC signal transmission. It is a critical component in systems requiring galvanic isolation for safety, noise immunity, or ground potential differences. Digital isolators are part of the broader category of isolation components, which also include optocouplers and magnetic isolators. They are essential in industrial automation, medical equipment, and communication systems where signal integrity and safety are paramount. Key features of the ADUM141D0BRWZ-RL7 include its high data rate of 150 Mbps, low propagation delay, and high CMTI of 75 kV/µs, which ensures reliable operation in noisy environments. The device supports a wide supply voltage range from 1.7 V to 5.5 V, enabling compatibility with various logic levels. The 3:1 channel configuration (three forward, one reverse) is ideal for applications requiring bidirectional communication with a primary data direction. The SOIC-16 wide body package provides excellent thermal performance and is suitable for automated assembly. Technically, the ADUM141D0BRWZ-RL7 uses iCoupler technology, which integrates micro-transformers on a CMOS die, offering advantages over optocouplers such as higher speed, lower power consumption, and better reliability. The device features a robust design that ensures safe communication in harsh environments, with a wide operating temperature range of -40°C to +125°C. It is RoHS compliant and lead-free, meeting environmental standards. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and power inverter systems. The high data rate and CMTI make it suitable for high-speed data acquisition and control systems. The wide supply range allows direct interface with 1.8V, 2.5V, 3.3V, and 5V logic, simplifying system design. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. Place decoupling capacitors close to the VDD pins to minimize noise. The device does not require external components for isolation, but proper grounding of the two isolated grounds is essential for optimal performance.
ADUM141D1BRWZ - Quad Digital Isolator 150Mbps | Analog Devices
The ADUM141D1BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides 3.75 kV RMS isolation with a data rate of up to 150 Mbps and a common-mode transient immunity (CMTI) of 75 kV/µs. The device is housed in a 16-lead SOIC-W (wide body) package, offering a compact solution for isolating digital signals across a power barrier. A digital isolator is a component that transfers digital signals between two isolated domains, providing galvanic isolation to protect against voltage transients, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in industrial automation, medical equipment, and communication systems where safety and signal integrity are critical. Key features of the ADUM141D1BRWZ include a 3:1 channel configuration (three forward channels and one reverse channel), a wide supply voltage range of 1.7V to 5.5V on both sides, and a fail-safe output state that defaults to high when the input power is absent. The device supports data rates up to 150 Mbps, making it suitable for high-speed serial interfaces such as SPI and UART. The CMTI of 75 kV/µs ensures reliable operation in noisy environments, preventing erroneous data transmission during fast voltage transients. The ADUM141D1BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including lower power consumption, higher data rates, and better timing accuracy. The device also features a default output state that can be configured to high or low, allowing designers to choose the safe state for their application. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and medical monitoring equipment. The wide supply voltage range and high data rate make it versatile for various isolation requirements. The device is also pin-compatible with other ADuM14x series isolators, enabling easy upgrades or downgrades in channel configuration. When designing with the ADUM141D1BRWZ, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The device is RoHS compliant and suitable for surface-mount assembly.
ADUM141D2BRWZ - Quad Digital Isolator, 150Mbps | Analog Devices
The ADUM141D2BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler® technology. It provides 3.75 kV RMS isolation with a data rate of 150 Mbps and a common-mode transient immunity (CMTI) of 75 kV/µs. The device is housed in a 16-lead SOIC package with 7.50 mm width (SOIC-16W), suitable for high-speed signal isolation in industrial and communication systems. A digital isolator is a component that transfers digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical equipment. Key features of the ADUM141D2BRWZ include a channel configuration of 3 forward and 1 reverse (3:1), input disable function, and a default output state of high (as indicated by the '2' in the part number). The device operates over a supply voltage range of 3.0 V to 5.5 V on both sides, with a maximum propagation delay of [DATA_NEEDED: propagation delay] ns. It is rated for industrial temperature range from -40°C to +125°C, making it suitable for harsh environments. The ADUM141D2BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve superior performance compared to optocouplers. This technology provides precise timing, low power consumption, and high reliability. The device also features a refresh mechanism to ensure output stability even when the input is static, and it supports a wide data rate range from DC to 150 Mbps. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and power supply isolation. The high CMTI of 75 kV/µs ensures reliable operation in noisy environments, such as those with fast-switching power transistors. The 3:1 channel configuration is ideal for applications requiring three forward channels and one reverse channel, such as isolated SPI with a slave-select line. When designing with the ADUM141D2BRWZ, ensure proper decoupling capacitors (0.1 µF) are placed close to each VDD pin. The input disable function can be used to force the output to a defined state, which is useful for system reset or fault conditions. Also, consider the propagation delay and pulse width distortion when designing high-speed communication links.
ADUM4154ARIZ - 5kV SPI Digital Isolator | Analog Devices
The ADUM4154ARIZ is a 4-channel SPIsolator digital isolator from Analog Devices, optimized for serial peripheral interface (SPI) applications. It provides galvanic isolation up to 5000 Vrms and supports SPI clock rates up to 17 MHz. The device is based on Analog Devices' iCoupler chip-scale transformer technology, which offers low propagation delay and jitter in the CLK, MO/SI, MI/SO, and SS SPI bus signals. It comes in a 20-pin SOIC-W package (0.295" width, 7.50mm) and operates over a wide temperature range of -40°C to +125°C. A digital isolator is a device that transfers digital signals across an isolation barrier, providing galvanic isolation to protect sensitive circuitry from high voltages, ground loops, and noise. In the hierarchy of isolation components, a digital isolator falls under the category of isolation ICs, which are part of the broader power management and signal conditioning ICs. The ADUM4154ARIZ specifically targets SPI communication, a synchronous serial interface widely used in embedded systems to connect microcontrollers to sensors, ADCs, DACs, and other peripherals. Key features of the ADUM4154ARIZ include support for up to four slave devices via two address pins, a 2 Mbps data rate (as listed by DigiKey, though the datasheet indicates 17 MHz SPI clock), and a high common-mode transient immunity (CMTI) of 25 kV/µs. The device operates with a supply voltage range of 4.5V to 5.5V on VDD1 and 3.0V to 3.6V on VDD2, allowing level shifting between different logic domains. The propagation delay is low, ensuring minimal skew in SPI timing. Technically, the ADUM4154ARIZ uses iCoupler technology, which employs micro-transformers to transmit data across the isolation barrier. This approach provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. The device also includes an enable pin for power management and a thermal shutdown feature for protection. Typical applications include industrial automation, motor control, data acquisition systems, and any SPI-based system requiring isolation between a controller and peripheral devices. The high CMTI makes it suitable for noisy environments such as factory floors and power conversion systems. When designing with the ADUM4154ARIZ, ensure proper PCB layout with adequate creepage and clearance distances for the 5kV isolation rating. Also, decouple both supply rails with 0.1µF capacitors close to the pins to minimize noise.
ADUM4154ARIZ-RL - 5kV SPI Digital Isolator | Analog Devices
The ADUM4154ARIZ-RL is a 5 kV, 7-channel, SPIsolator digital isolator from Analog Devices, optimized for serial peripheral interface (SPI) applications. It supports up to four slave devices and is based on the iCoupler chip-scale transformer technology. The device provides 5000 Vrms isolation, a data rate of 2 Mbps, and a common-mode transient immunity (CMTI) of 25 kV/µs. It is available in a 20-SOIC (0.295", 7.50mm Width) package, suitable for surface-mount assembly. A digital isolator is a device that transfers digital signals across an isolation barrier, providing galvanic isolation to protect circuits and users from high voltages, ground loops, and noise. It is a key component in industrial automation, medical equipment, and communication systems where safety and signal integrity are critical. Digital isolators are part of the broader category of isolation components, which also include optocouplers and magnetic isolators. Key features of the ADUM4154ARIZ-RL include support for SPI clock rates up to 17 MHz, low propagation delay and jitter, and the ability to route the slave select signal to one of four destinations using two low-speed address pins. The device operates over a wide temperature range of -40°C to +125°C and supports supply voltages of 4.5V to 5.5V on VDD1 and 3.0V to 3.6V on VDD2. It is RoHS compliant and lead-free. The ADUM4154ARIZ-RL uses iCoupler technology, which employs chip-scale transformers to achieve isolation, offering advantages over optocouplers such as higher data rates, lower power consumption, and better reliability. The device is designed to meet stringent safety standards, making it suitable for applications requiring reinforced isolation. Typical applications include SPI isolation in industrial fieldbus systems, isolated sensor interfaces, motor control, and medical monitoring equipment. The device's high CMTI ensures reliable operation in noisy environments, and its low propagation delay supports high-speed SPI communication. When designing with this device, ensure proper PCB layout to maintain isolation spacing and minimize parasitic capacitance. Also, consider the power supply decoupling to ensure stable operation across the isolation barrier.
ADUM4154BRIZ - 5kV SPI Digital Isolator | Analog Devices
The ADUM4154BRIZ is a 5 kV, 7-channel SPIsolator digital isolator from Analog Devices, optimized for serial peripheral interface (SPI) applications. It supports SPI clock rates up to 17 MHz and provides isolation for up to four peripheral devices. The device is based on Analog Devices' iCoupler chip-scale transformer technology, which offers low propagation delay and jitter in the CLK, MO/SI, MI/SO, and SS SPI bus signals. It comes in a 20-lead SOIC-W package (0.295" width, 7.50 mm) and is rated for 5000 Vrms isolation voltage with a common-mode transient immunity (CMTI) of 25 kV/µs. A digital isolator is a component that provides galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. It is used to protect sensitive electronics from high voltages, ground loops, and noise, and is essential in industrial, medical, and automotive applications where safety and signal integrity are critical. Digital isolators are part of the broader category of interface ICs, which also includes transceivers, level shifters, and optocouplers. Key features of the ADUM4154BRIZ include its 4-channel SPI isolation with support for multiple slaves, a data rate of 34 Mbps, and a wide supply voltage range of 3 V to 5.5 V. The device also features low propagation delay and jitter, ensuring reliable high-speed SPI communication. The iCoupler technology provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. The ADUM4154BRIZ is designed for use in industrial automation, motor control, and isolated SPI communication in data acquisition systems. Its high CMTI of 25 kV/µs makes it suitable for harsh environments with fast voltage transients. The device operates over a temperature range of -40°C to +125°C, making it suitable for industrial applications. When designing with the ADUM4154BRIZ, it is important to ensure proper PCB layout to maintain isolation performance. The device requires careful attention to creepage and clearance distances, as well as proper decoupling of the power supply pins. The datasheet provides detailed guidelines for layout and application circuits.
ADUM5410ARWZ - Quad-Channel Digital Isolator with isoPower | Analog Devices
The ADUM5410ARWZ is a quad-channel digital isolator with an integrated, isolated DC-to-DC converter (isoPower) from Analog Devices, based on iCoupler technology. It provides 4 forward channels with a data rate of 150 Mbps and a common-mode transient immunity (CMTI) of 75 kV/µs, ensuring robust signal integrity in noisy industrial environments. The device operates from a 5.0 V or 3.3 V input supply and delivers up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V, eliminating the need for a separate isolated power supply. The ADUM5410ARWZ is housed in a 24-lead SOIC-W package (0.300" width) and is rated for a working voltage of 2500 Vrms, making it suitable for applications requiring galvanic isolation. Digital isolators are components that transfer digital signals across an isolation barrier without a physical electrical connection, using capacitive or magnetic coupling. They are essential in systems where safety, noise immunity, or ground potential differences require isolation between different sections of a circuit. The ADUM5410ARWZ belongs to the family of digital isolators, which are part of the broader category of interface ICs, and specifically to the subcategory of isolated interface ICs. Its integrated isoPower converter distinguishes it from standard digital isolators by providing isolated power, simplifying power supply design and reducing component count. Key features of the ADUM5410ARWZ include its 150 Mbps data rate, which supports high-speed communication protocols such as SPI and UART, and its 75 kV/µs common-mode transient immunity, which prevents data corruption in the presence of fast voltage transients. The device also features a 2500 Vrms isolation rating, ensuring safe operation in high-voltage applications. The integrated DC-to-DC converter provides up to 500 mW of isolated power, which can be used to power external circuitry on the isolated side, reducing the need for additional isolated power modules. Technically, the ADUM5410ARWZ uses Analog Devices' iCoupler technology, which employs chip-scale transformers to achieve isolation. This technology offers advantages over traditional optocouplers, including higher data rates, lower power consumption, and better reliability. The device also includes a soft-start function to limit inrush current during power-up, and it supports a wide operating temperature range of -40°C to +125°C, making it suitable for harsh environments. Typical applications for the ADUM5410ARWZ include industrial fieldbus communication, isolated SPI interfaces, motor control, and power supply isolation. Its integrated power converter makes it ideal for applications where space is limited and a separate isolated power supply is impractical. The device is also used in medical equipment, where patient safety requires galvanic isolation. When designing with the ADUM5410ARWZ, it is important to ensure proper PCB layout to maintain isolation spacing and to place decoupling capacitors close to the power pins. The integrated DC-to-DC converter requires careful attention to the input and output capacitor selection to ensure stable operation and to minimize ripple.
L9663-TR - Automotive Airbag System IC | STMicroelectronics
The L9663-TR is a highly integrated automotive airbag system IC manufactured by STMicroelectronics. It is designed to meet the stringent safety and reliability requirements of modern vehicle occupant protection systems. The device integrates multiple functions essential for airbag deployment, including squib driver circuits, sensor interfaces, and diagnostic capabilities, all in a compact surface-mount package. An airbag system IC is a specialized automotive safety component that manages the deployment of airbags by controlling the firing of squib (initiator) devices. It interfaces with crash sensors, processes deployment signals, and provides diagnostic feedback to the vehicle's electronic control unit (ECU). The L9663-TR belongs to the broader category of automotive safety ICs, which are part of the vehicle's passive safety system. These ICs must operate reliably under extreme conditions, including wide temperature ranges and high vibration, and must comply with automotive quality standards such as AEC-Q100. Key features of the L9663-TR include multiple squib driver channels, each capable of delivering precise firing currents, and integrated diagnostic functions that monitor the health of the squib circuits. The device supports both low-side and high-side driving configurations, providing flexibility in system design. It also includes a SPI interface for communication with the main ECU, enabling real-time status monitoring and control. The L9663-TR is designed to operate over a wide supply voltage range, ensuring compatibility with automotive battery systems. From a technical perspective, the L9663-TR utilizes a robust BiCMOS process technology that combines high-voltage capability with low-power consumption. The device features built-in protection mechanisms, including overcurrent and overtemperature shutdown, to prevent damage during fault conditions. Its architecture is optimized for low electromagnetic interference (EMI), which is critical in automotive environments where multiple electronic systems coexist. The IC also incorporates a self-test capability that runs at power-up to verify the integrity of internal circuits, enhancing system reliability. Typical applications for the L9663-TR include driver and passenger airbag systems, side curtain airbags, and seatbelt pretensioners. In these systems, the IC ensures that airbags deploy correctly and in a timely manner during a collision, while also providing diagnostic information to the vehicle's onboard diagnostics (OBD) system. The device is also used in advanced driver assistance systems (ADAS) that require integrated safety features. When designing with the L9663-TR, it is essential to consider the thermal and electrical requirements of the squib firing circuits. Proper PCB layout, including adequate ground planes and decoupling capacitors, is critical to ensure stable operation and minimize noise. Additionally, the SPI interface must be correctly configured to enable communication with the ECU, and the device's diagnostic features should be utilized to monitor system health continuously.
L9678 - Automotive Airbag System IC | STMicroelectronics
The L9678 is a highly integrated automotive airbag system IC from STMicroelectronics, designed for use in vehicle safety systems. It combines a squib driver interface, a high-voltage DC-DC converter, and a serial peripheral interface (SPI) for communication with the main microcontroller. The device is housed in a 64-pin TQFP package, providing a compact solution for airbag control units. An airbag system IC is a specialized integrated circuit that manages the deployment of airbags in a vehicle. It typically includes squib drivers that provide the controlled current to ignite the airbag inflator, a power supply to generate the high voltage needed for deployment, and diagnostic features to ensure the system is ready. The L9678 fits into the broader category of automotive safety ICs, which are part of the vehicle's passive safety system, working alongside sensors and the central airbag control unit. Key features of the L9678 include a dual squib driver with programmable firing current, a built-in DC-DC converter for generating the deployment voltage, and a 16-bit SPI interface for configuration and diagnostics. The device also includes a watchdog timer and a voltage regulator for the microcontroller, enhancing system reliability. Its automotive-grade design ensures operation over a wide temperature range and compliance with stringent automotive standards. Technically, the L9678 integrates a charge pump and a boost converter to generate the high voltage required for squib firing, typically around 20-35V. The squib drivers are designed to deliver precise current profiles, with programmable rise times and peak currents, to ensure reliable airbag deployment. The SPI interface allows the microcontroller to read diagnostic status, including squib resistance and supply voltage monitoring, enabling continuous system health checks. Typical applications include driver and passenger airbag control units, side airbag modules, and seatbelt pretensioner systems. The L9678 is also used in advanced airbag systems that support multiple deployment stages. Its integration reduces the number of external components, simplifying PCB design and improving reliability. When designing with the L9678, it is critical to follow the manufacturer's layout guidelines for the high-voltage DC-DC converter and to ensure proper thermal management, as the device can dissipate significant power during squib firing. Additionally, the SPI interface must be properly configured to enable all diagnostic features for safety compliance.
L9966 - Automotive FlexInput Sensor Interface IC | STMicroelectronics
The STMicroelectronics L9966 is an automotive-grade FlexInput IC designed as a versatile sensor interface for Engine Control Units (ECUs) and Body/Chassis Modules. It integrates up to 15 programmable channels for analog sensing, resistance measurement, and digital sensing, enabling direct connection to temperature, lambda, pressure, and position sensors. The device operates from a wide battery supply range of 5.5V to 36V, supporting both 12V and 24V automotive systems, and is AEC-Q100 qualified for harsh environments. A FlexInput IC is a specialized automotive sensor interface that consolidates multiple discrete components (such as op-amps, comparators, and protection circuits) into a single programmable device. It belongs to the broader family of automotive analog and power ICs, serving as the analog front-end between sensors and the microcontroller. By replacing discrete components, the L9966 reduces PCB area, improves reliability, and allows sensor changes across applications without hardware redesign. Key features include 15 configurable input channels, SPI communication for configuration and diagnostics, and compatibility with 12V and 24V battery systems. The device integrates protection features such as overcurrent, overvoltage, and thermal shutdown, ensuring robust operation in automotive environments. Its programmable nature allows the same PCB to support different sensor types, reducing inventory and design effort. The L9966 is built on STMicroelectronics' BCD (Bipolar-CMOS-DMOS) technology, enabling high-voltage operation with low-power digital control. This architecture provides excellent EMC performance and efficient power handling. The device is available in a 48-pin TQFP-EP (7x7) package, which offers a compact footprint with an exposed pad for thermal management. Typical applications include engine control units, body control modules, and chassis systems. In an ECU, the L9966 interfaces with various sensors, converting analog signals to digital via SPI for the microcontroller. Its flexibility allows designers to standardize on one IC across multiple vehicle platforms, simplifying supply chain and design validation. When designing with the L9966, ensure proper decoupling on the battery supply pin and adequate thermal connection to the exposed pad. The SPI interface should be routed with controlled impedance to minimize noise. Refer to the datasheet for detailed configuration of each input channel to match the specific sensor requirements.
L9966-TR - Automotive FlexInput Sensor Interface IC | STMicroelectronics
The L9966-TR is an automotive-grade FlexInput IC from STMicroelectronics designed as a versatile sensor interface for Engine Control Units (ECUs) and Body/Chassis Modules. It integrates up to 15 configurable channels for analog sensing, resistance measurement, and digital sensing, enabling direct connection to temperature, lambda, pressure, and position sensors. The device is housed in a 48-pin TQFP-EP (7x7 mm) package with an exposed pad for enhanced thermal performance, and communicates via an SPI interface, making it suitable for high-reliability automotive applications. A FlexInput IC is a specialized automotive sensor interface that consolidates multiple discrete components (such as op-amps, comparators, and ADC front-ends) into a single programmable device. It sits within the signal chain between sensors and the ECU's microcontroller, providing signal conditioning, diagnostics, and multiplexing. In the system hierarchy, it belongs to the automotive analog and power IC category, specifically under sensor interfaces, which are critical for engine management, emissions control, and body electronics. Key features include up to 15 input channels, each configurable for analog voltage, resistance, or digital frequency/pulse-width signals. The device supports both ratiometric and absolute measurements, with built-in diagnostics for open/short circuit detection. It operates over a wide supply voltage range and is qualified to AEC-Q100 Grade 1, ensuring operation from -40°C to +125°C. The SPI interface allows direct connection to microcontrollers, reducing PCB complexity and BOM count. Technically, the L9966 integrates a multiplexed analog front-end with a 12-bit ADC, programmable gain amplifiers, and current sources for resistance measurement. Its architecture enables flexible sensor configuration without hardware changes, as the channel settings are software-programmable. This reduces development time and allows the same PCB to support multiple sensor types across different vehicle platforms. Typical applications include engine control units for monitoring coolant temperature, intake air temperature, and oil pressure; lambda sensor interfaces for exhaust gas recirculation; and body control modules for position and level sensing. The device's ability to handle both analog and digital sensors makes it a central hub for sensor data acquisition. When designing with the L9966, ensure proper decoupling on the supply pins and a solid ground plane for the exposed pad. The SPI lines should be kept short and shielded to avoid noise coupling, especially in the harsh automotive electromagnetic environment. Refer to the STMicroelectronics datasheet for detailed register configuration and diagnostic routines.
ST3232BDR - 3.3V RS-232 Transceiver, 2 Drivers/2 Receivers | STMicroelectronics
The ST3232BDR is a low-power, 3.3V RS-232 transceiver from STMicroelectronics, featuring two drivers and two receivers in a compact SOIC-16 package. It is designed for serial communication applications requiring EIA/TIA-232 and V.28/V.24 compatibility, with a data rate of up to 400 kbps. The device operates from a single 3.0V to 5.5V supply, making it ideal for battery-powered and portable systems. An RS-232 transceiver is an interface IC that converts logic-level signals (typically 3.3V or 5V CMOS/TTL) to RS-232 voltage levels (typically ±5V to ±15V) and vice versa, enabling serial communication between microcontrollers and legacy RS-232 devices. It sits in the hierarchy: RS-232 transceiver -> line transceiver -> interface IC -> integrated circuit. The ST3232BDR integrates charge-pump voltage converters to generate the required RS-232 voltage levels from a single low-voltage supply, eliminating the need for dual power rails. Key features include a 3.0V to 5.5V supply range, 400 kbps data rate, 2 drivers and 2 receivers, and a low-power shutdown mode with 1 µA supply current. The device also features a 10 kΩ receiver input impedance, ±15 kV ESD protection on the RS-232 pins (HBM), and a 0.1 µF external capacitor requirement for the charge pump. These specifications ensure robust and reliable serial communication in noisy industrial environments. The ST3232BDR uses a charge-pump architecture with four external capacitors to generate the ±5.5V RS-232 voltage levels from the 3.3V supply. The internal charge pump operates at a switching frequency of 120 kHz, providing efficient voltage conversion with minimal external components. The device also includes a manual shutdown input that reduces supply current to 1 µA, extending battery life in portable applications. Typical applications include industrial automation, point-of-sale terminals, GPS modules, and portable data acquisition systems. The wide supply range and low power consumption make it suitable for battery-powered devices, while the ESD protection ensures reliability in harsh environments. When designing with the ST3232BDR, ensure that the charge-pump capacitors are placed close to the device pins and use low-ESR ceramic capacitors for optimal performance. The shutdown pin can be used to conserve power in idle states, but note that the device automatically enters shutdown when the supply voltage drops below 2.7V.
ST3232EBDR - 3.3V RS-232 Transceiver, 15kV ESD | STMicroelectronics
The ST3232EBDR is a dual RS-232 line transceiver from STMicroelectronics, designed for 3.3V to 5V supply operation. It integrates two drivers and two receivers, providing a complete serial interface solution for UART communication. The device is housed in a compact SOIC-16 package, making it suitable for space-constrained applications. With a data rate of up to 400 kbps, it supports standard RS-232 communication protocols. RS-232 transceivers are essential components in serial communication systems, converting logic-level signals to RS-232 voltage levels and vice versa. They are part of the interface IC category, bridging microcontrollers and peripherals. The ST3232EBDR operates from a single 3.3V supply, eliminating the need for multiple voltage rails and simplifying power design. Its low-power shutdown mode reduces quiescent current to 1 uA, making it ideal for battery-powered devices. Key features include a 15kV ESD protection on the RS-232 pins, ensuring robustness in harsh environments. The device supports data rates up to 400 kbps, sufficient for most serial applications. It includes an internal charge pump that generates the required ±5.5V RS-232 voltage levels from a single 3.3V supply, eliminating the need for external dual supplies. The ST3232EBDR also features a shutdown pin for power saving, reducing current consumption to 1 uA. Technically, the ST3232EBDR uses a charge pump architecture with two external capacitors to generate the RS-232 voltage levels. The device is designed to meet EIA/TIA-232E and ITU-T V.28 specifications, ensuring compatibility with standard RS-232 interfaces. The SOIC-16 package provides a small footprint, and the device operates over a temperature range of -40°C to +85°C, making it suitable for industrial applications. Typical applications include industrial automation, point-of-sale terminals, and portable instrumentation. In industrial automation, the ST3232EBDR provides reliable serial communication between PLCs and sensors. In point-of-sale terminals, it interfaces with barcode scanners and receipt printers. The low-power shutdown mode is particularly beneficial for battery-powered portable devices, extending battery life. When designing with the ST3232EBDR, ensure proper decoupling with a 0.1uF capacitor on the VCC pin and place the charge pump capacitors close to the device. The shutdown pin can be controlled by a microcontroller to enter low-power mode when not transmitting. For ESD protection, the integrated 15kV protection on the RS-232 pins reduces the need for external protection components.
ST75185CTR - 3.3V/5V RS-232 Transceiver | STMicroelectronics
The ST75185CTR is a 3-driver/5-receiver RS-232 interface transceiver from STMicroelectronics, designed for serial communication in industrial and consumer applications. It operates from a single 3.3V or 5V power supply, with an integrated charge pump that generates the required ±10V RS-232 voltage levels. The device is available in a 20-pin SOIC (SOP-20) package, providing a compact solution for space-constrained designs. RS-232 transceivers are a type of serial communication interface IC that converts logic-level signals (typically 3.3V or 5V) to RS-232 voltage levels (±5V to ±15V) and vice versa. They are part of the broader interface IC category, which also includes UARTs, USB transceivers, and CAN transceivers. RS-232 transceivers are essential for legacy serial communication with PCs, industrial equipment, and test instruments, where the RS-232 standard (EIA-232) is still widely used. Key features of the ST75185CTR include a data rate of up to 120 kbps, which is sufficient for most RS-232 applications, and an ESD protection of ±2 kV (HBM) on the RS-232 pins, ensuring robustness in harsh environments. The device also features a low-power shutdown mode that reduces quiescent current to 1 µA, making it suitable for battery-powered or power-sensitive applications. The charge pump requires only four external 0.1 µF capacitors, simplifying the PCB layout. The ST75185CTR uses a dual charge pump architecture to generate the positive and negative supply rails from a single 3.3V or 5V input. This eliminates the need for a separate negative supply, reducing system cost and board space. The device is designed to meet the EIA-232 and ITU-T V.28 standards, ensuring interoperability with standard RS-232 devices. Typical applications include industrial automation, point-of-sale (POS) terminals, data acquisition systems, and embedded systems requiring serial communication. The wide operating temperature range of -40°C to +85°C makes it suitable for industrial environments. The device is also used in networking equipment, such as routers and switches, for console management ports. When designing with the ST75185CTR, ensure that the charge pump capacitors are placed close to the device pins to minimize noise and ripple. The shutdown pin can be used to reduce power consumption when the transceiver is idle. For ESD protection, the device provides ±2 kV HBM on the RS-232 pins, but additional external protection may be required for applications with higher ESD exposure.
ZZISO-20260819 - High-Speed Isolated Digital Isolator | XAIPART
The ZZISO-20260819 is a high-speed, reinforced digital isolator designed for robust signal isolation in industrial, automotive, and communication systems. It provides galvanic isolation up to 5 kVrms, ensuring safe and reliable data transfer between different ground domains. The device supports data rates up to 150 Mbps, making it suitable for high-speed interfaces such as SPI, UART, and CAN. It is available in a compact SOIC-16 package, offering a space-saving solution for dense PCB layouts. A digital isolator is a component that transmits digital signals across an isolation barrier, preventing DC current flow while allowing AC signal transfer. It is essential in systems where ground potential differences or noise could disrupt signal integrity. Digital isolators are part of the broader category of isolation components, which also includes optocouplers and magnetic isolators. They are widely used in motor drives, power converters, and medical devices to protect sensitive electronics from high-voltage transients. Key features of the ZZISO-20260819 include a wide supply voltage range of 2.5V to 5.5V, low propagation delay of 10 ns, and high common-mode transient immunity of 100 kV/us. The device also features an enable pin for power management and a fail-safe output that defaults to a known state when the input is unpowered. These specifications ensure reliable operation in noisy environments and critical safety applications. Technically, the ZZISO-20260819 uses capacitive coupling technology to achieve high-speed data transfer with low power consumption. The isolation barrier is reinforced to provide double protection, meeting stringent safety standards. The device is designed to operate over a wide temperature range of -40C to +125C, making it suitable for harsh industrial environments. Its low quiescent current of 1.5 mA per channel helps reduce overall system power consumption. Typical applications include isolated SPI communication in motor control, isolated CAN bus interfaces in automotive electronics, and isolated UART links in industrial automation. The high data rate and robust isolation make it ideal for these use cases, ensuring reliable data transfer even in electrically noisy environments. When designing with the ZZISO-20260819, it is important to place decoupling capacitors close to the VCC pins and ensure proper PCB layout to minimize parasitic inductance. The enable pin can be used to put the device into a low-power shutdown mode when isolation is not required, saving energy in battery-powered systems.