AD7376ARWZ100

Digital Potentiometers Overview

The AD7376ARWZ100 is a high-voltage, single-channel digital potentiometer manufactured by Analog Devices. It features 128 tap positions with a nominal resistance of 100 kΩ and ±30% tolerance. The device supports dual-supply operation from ±4.5 V to ±16.5 V or single-supply operation from 4.5 V to 33 V. It utilizes a 3-wire SPI-compatible serial interface for control and includes a shutdown mode with less than 1 µA current consumption. The component is housed in a 16-lead wide-body SOIC package and operates within an extended industrial temperature range of −40°C to +85°C.

Digital Potentiometers Feature Summary

• High-voltage operation: Supports up to 30 V single-supply or ±15 V dual-supply configurations.
• Digital Interface: 3-wire SPI-compatible serial bus with programmable preset capability via SHDN pin.
• Performance: Typical Total Harmonic Distortion (THD) of 0.002% at 100 kΩ; settling time of 4 µs.
• Power Management: Shutdown supply current less than 1 µA; allows programming during power-up.

Digital Potentiometers Applications

• High voltage DAC implementations
• Programmable gain and offset adjustment circuits
• Programmable filters and delay lines
• Actuator control systems
• Audio volume control applications

Digital Potentiometers Procurement Notes

Verify the specific suffix 'RWZ' corresponds to the 16-lead SOIC_W package variant when sourcing. Confirm that the '100' designation indicates the 100 kΩ resistance value. Ensure compatibility with the EVAL-AD7376EBZ evaluation board if development support is required. Check datasheet revision history for any updates to absolute maximum ratings or thermal characteristics prior to final design integration.

Digital Potentiometers Selection Notes

Select this model for applications requiring high voltage tolerance and solid-state replacement for mechanical potentiometers. The 100 kΩ option offers lower bandwidth (50 kHz typical) compared to the 10 kΩ version but provides higher impedance matching for specific signal conditioning needs. Consider the 16-lead SOIC package for larger PCB footprints where thermal dissipation or ease of assembly is prioritized over compactness. Verify logic level compatibility for the 3-wire SPI interface against the system microcontroller.

Digital Potentiometers Part Context

The AD7376 belongs to Analog Devices' iCMOS™ digital potentiometer family, designed to replace mechanical components with digitally controlled alternatives. This series emphasizes high performance and reliability in industrial and audio environments. The ARWZ100 variant specifically denotes the 100 kΩ resistance value packaged in the 16-lead wide SOIC format, distinguishing it from the TSSOP variants or other resistance values within the same functional family.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other AD7376 variants such as AD7376ARUZ100 (TSSOP-14 package) or different resistance values like AD7376ARWZ50. When substituting, verify that the package dimensions and thermal resistance (θJA) are acceptable for the existing PCB layout. Ensure that the new part's electrical characteristics, particularly wiper resistance and nonlinearity, meet the circuit requirements.