AD4683BCPZ - 16-Bit 500kSPS Dual SAR ADC | Analog Devices
MPN: AD4683BCPZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.64 | $10.64 |
| 10 | $9.58 | $95.80 |
| 100 | $8.51 | $851.00 |
| 500 | $7.45 | $3,725.00 |
| 1,000 | $6.38 | $6,380.00 |
Drop-in alternatives for AD4683BCPZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD4682BCPZ
β Drop-Inβ In Stock
$9.75 / Unit
View Datasheet βAD4683BCPZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
AD4683BCPZ-RL
β Drop-Inπ Reference alternative (not in catalog)
AD4682BCPZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
AD4682BCPZ-RL
β Drop-Inπ Reference alternative (not in catalog)
AD4683BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Number of Inputs | 2 |
| Input Type | Pseudo-Differential |
| Sampling Rate | 500 kSPS |
| Architecture | SAR |
| Supply Voltage | 3.0 V to 3.6 V |
| Interface | SPI |
| Package | 16-LFCSP (3x3 mm) |
| Operating Temperature | -40Β°C to +125Β°C |
| Power Dissipation | [DATA_NEEDED: Power Dissipation] |
| Reference Voltage | [DATA_NEEDED: Reference Voltage] |
| INL (Integral Nonlinearity) | [DATA_NEEDED: INL] |
| SNR (Signal-to-Noise Ratio) | [DATA_NEEDED: SNR] |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD4683BCPZ Pin Configuration
| Pin 1 | AVDD β Analog power supply |
| Pin 2 | VIN1+ β Positive analog input channel 1 |
| Pin 3 | VIN1- β Negative analog input channel 1 |
| Pin 4 | GND β Ground |
| Pin 5 | VIN2+ β Positive analog input channel 2 |
| Pin 6 | VIN2- β Negative analog input channel 2 |
| Pin 7 | AVDD β Analog power supply |
| Pin 8 | REF β Reference voltage input |
| Pin 9 | GND β Ground |
| Pin 10 | SCLK β Serial clock input |
| Pin 11 | SDI β Serial data input |
| Pin 12 | SDO β Serial data output |
| Pin 13 | CS β Chip select |
| Pin 14 | GND β Ground |
| Pin 15 | DVDD β Digital power supply |
| Pin 16 | GND β Ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD4683BCPZ is suitable for 6 applications: Industrial Data Acquisition, Motor Control, Medical Instrumentation, Power Quality Monitoring, Vibration Monitoring, Audio Test Equipment.
Industrial Data Acquisition
The AD4683BCPZ is ideal for industrial data acquisition systems that require high precision and dual simultaneous sampling. Its 16-bit resolution and 500 kSPS sampling rate enable accurate capture of analog signals from sensors and transducers. The pseudo-differential input reduces common-mode noise, ensuring reliable measurements in noisy industrial environments. The SPI interface simplifies integration with microcontrollers and PLCs, while the small LFCSP package saves board space. The wide operating temperature range of -40Β°C to +125Β°C ensures performance in harsh conditions.
Recommended
Motor Control
In motor control applications, the AD4683BCPZ provides dual simultaneous sampling of phase currents and voltages, which is essential for accurate vector control algorithms. The 500 kSPS sampling rate allows real-time monitoring of fast-changing signals, while the 16-bit resolution ensures precise current sensing. The pseudo-differential input rejects common-mode noise from motor drives, improving signal integrity. The compact package and low power consumption make it suitable for embedded motor controllers. The SPI interface enables direct connection to DSPs or FPGAs for high-speed control loops.
Recommended
Medical Instrumentation
The AD4683BCPZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its 16-bit resolution provides high accuracy for vital sign measurements, and the dual simultaneous sampling capability is useful for applications like ECG and EEG where multiple channels must be sampled synchronously. The low power consumption extends battery life in portable devices. The small LFCSP package allows for miniaturized designs, and the wide temperature range ensures reliability in clinical environments. The SPI interface simplifies data transfer to processing units.
Recommended
Power Quality Monitoring
For power quality monitoring, the AD4683BCPZ enables simultaneous sampling of voltage and current waveforms, which is critical for calculating power parameters like active power, reactive power, and harmonics. The 500 kSPS sampling rate captures high-frequency transients, and the 16-bit resolution provides accurate measurements. The pseudo-differential input rejects common-mode noise from power lines. The device's low power consumption is beneficial for distributed monitoring nodes. The SPI interface allows easy integration with energy metering ICs or microcontrollers.
Recommended
Vibration Monitoring
The AD4683BCPZ is used in vibration monitoring systems to capture accelerometer signals with high precision. Dual simultaneous sampling allows phase-accurate measurement of multiple vibration axes, which is essential for modal analysis and bearing fault detection. The 16-bit resolution ensures detection of small vibrations, and the 500 kSPS sampling rate captures high-frequency components. The pseudo-differential input reduces noise from long cable runs. The compact package is suitable for embedding in industrial sensors, and the wide temperature range supports outdoor installations.
Recommended
Audio Test Equipment
In audio test equipment, the AD4683BCPZ provides high-resolution digitization of audio signals for analysis. The 16-bit resolution and 500 kSPS sampling rate are sufficient for audio frequencies up to 250 kHz, enabling measurement of harmonic distortion and frequency response. The dual simultaneous sampling allows comparison of two channels, such as left and right audio outputs. The low noise performance of the pseudo-differential input preserves signal fidelity. The SPI interface facilitates connection to audio analyzers or PCs.
Recommended
Recommended Products Summary
Engineering reference data for AD4683BCPZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4682BCPZ | AD4683BCPZ-RL7 | AD4683BCPZ-RL |
|---|---|---|---|---|
| Package | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) | 16-LFCSP (3x3 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Sampling Rate | 500 kSPS | 1 MSPS | 500 kSPS | 500 kSPS |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Number of Inputs | 2 | 2 | 2 | 2 |
| Input Type | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Interface | SPI | SPI | SPI | SPI |
Key Differentiators
- Dual simultaneous sampling (vs AD7980BCPZ-RL7)
- Higher sampling rate than AD4683 (vs AD4682BCPZ)
- Pin-compatible family (vs AD4682BCPZ)
Design Notes
Ensure that the AVDD and DVDD supplies are properly decoupled with 0.1 uF and 10 uF capacitors placed close to the pins. The AD4683 operates from 3.0 V to 3.6 V, so a clean 3.3 V supply is recommended. Use a low-noise LDO for analog supply to minimize noise coupling into the ADC.
For optimal performance, place the AD4683 close to the signal source to minimize trace length and reduce noise pickup. Use a solid ground plane and avoid routing digital signals under the analog input traces. The LFCSP package has an exposed pad that should be soldered to the ground plane for thermal and electrical performance.
Do not exceed the absolute maximum ratings for the analog inputs. The pseudo-differential inputs have a common-mode range that must be respected to avoid distortion. Ensure the reference voltage is stable and well-filtered, as it directly affects the ADC's accuracy. Also, avoid floating the CS pin; tie it to a defined logic level when not in use.
Compliance Information
RoHS compliance indicated on DigiKey product page. Other compliance data not specified in provided sources.
