AD7376ARUZ100-R7

Digital Potentiometers Overview

The AD7376ARUZ100-R7 is a single-channel, high-voltage digital potentiometer manufactured by Analog Devices. It features 128 tap positions with a nominal resistance of 100 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 0.002%, a bandwidth of 50 kHz at midscale, and a settling time of 4 µs. 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.
• Digital Interface: Utilizes a standard 3-wire SPI-compatible serial bus (CS, CLK, SDI).
• Programmable Preset: Features a shutdown mode allowing preset programming before activation.
• Performance: Delivers low distortion (0.002% THD typical) and fast settling times (4 µs).

Digital Potentiometers Applications

• High voltage DAC implementations
• Programmable power supplies
• Programmable gain and offset adjustment circuits
• Actuator control systems

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix '-R7' corresponds to the reel packaging format required for automated assembly processes. Confirm that the 'U' designation aligns with the 14-lead TSSOP physical footprint requirements for the target PCB layout. Ensure compatibility with the 3-wire serial protocol timing specifications during integration.

Digital Potentiometers Selection Notes

Select this model for applications requiring high voltage handling up to 30 V and precise 100 kΩ resistance values. The 100 kΩ variant offers lower power consumption compared to the 10 kΩ version but provides reduced bandwidth (50 kHz vs. 470 kHz). Verify that the system logic levels match the specified input thresholds for reliable data transmission over the serial interface.

Digital Potentiometers Part Context

This component belongs to the AD7376 family of iCMOS digital potentiometers. It serves as a solid-state replacement for mechanical potentiometers, offering enhanced reliability and programmability. The device integrates a 7-bit RDAC latch and serial register, enabling dynamic electronic adjustment of resistance ratios without manual intervention.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements within the same series include the AD7376ARWZ100 (SOIC-16 package) and the AD7376ARUZ50 (50 kΩ resistance value). When substituting, verify that the package outline dimensions and thermal characteristics are compatible with the existing board design.