AD7376ARUZ10

Digital Potentiometers Overview

The AD7376ARUZ10 is a high-voltage, single-channel digital potentiometer manufactured by Analog Devices Inc. It features 128 tap positions with a nominal resistance of 10 kΩ and ±30% tolerance. The device operates on a single supply from 4.5 V to 33 V or dual supplies from ±4.5 V to ±16.5 V. It utilizes a 3-wire SPI-compatible serial interface for control. Key electrical parameters include a typical total harmonic distortion (THD) of 0.006%, a bandwidth of 470 kHz at midscale, and a shutdown current of less than 1 µA. The component is housed in a 14-lead TSSOP package and supports 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.
• 128-position resolution: Provides precise digital adjustment with 10 kΩ nominal resistance.
• Low power consumption: Features programmable sleep mode with shutdown current under 1 µA.
• SPI-compatible interface: Utilizes a standard 3-wire serial bus (CS, CLK, SDI) for data loading.

Digital Potentiometers Applications

• High voltage digital-to-analog converters (DACs)
• Programmable gain and offset adjustments
• Actuator control systems
• Audio volume control circuits

Digital Potentiometers Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm the 'U' designation corresponds to the 14-lead TSSOP package variant. Ensure compatibility with the required voltage rails, as the device supports both single and dual supply modes within specified limits.

Digital Potentiometers Selection Notes

Select this model for applications requiring high voltage handling and solid-state reliability over mechanical potentiometers. The 10 kΩ value offers a balance between bandwidth and power dissipation. Consider the ±30% resistor tolerance for precision requirements and utilize the SHDN pin for programmable preset functionality during power-up sequences.

Digital Potentiometers Part Context

This component belongs to the AD7376 family of iCMOS digital potentiometers. It serves as a direct electronic replacement for mechanical pots, trimmers, and variable resistors. The family includes variants with 50 kΩ and 100 kΩ resistance values, all sharing the same functional architecture and interface protocols.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout compatibility and voltage ratings if considering alternative manufacturers' digital potentiometers.

Digital Potentiometers FAQ

How does the AD7376 handle power-up states?

The device powers up at a random setting. However, asserting the SHDN pin during power-up allows the user to program a desirable preset level before deasserting shutdown, providing an alternative to EEPROM solutions.

What is the maximum continuous current rating?

The maximum continuous current is ±5 mA when the resistance between terminals is ≤ 6 kΩ and the applied voltage is 30 V/0 V. Pulsed current can reach ±20 mA.

Can the device operate with negative voltages?

Yes, in dual-supply mode, the device operates with VDD/VSS ranging from ±4.5 V to ±16.5 V. The resistor terminals A, B, and W have no polarity limitations with respect to each other.