AD5204BRUZ100-R7

Overview

The AD5204BRUZ100-R7 is a quad-channel, 256-position digitally controlled variable resistor from Analog Devices. It features a nominal terminal resistance of 100 kΩ with a temperature coefficient of 700 ppm/°C. The device operates on a single supply of +2.7 V to +5.5 V or dual supplies of ±2.3 V to ±2.7 V. It utilizes a 3-wire SPI-compatible serial interface for programming and includes volatile memory that retains settings during shutdown. The component is housed in a 24-lead TSSOP package.

Feature Summary

• Quad-channel architecture with 256 programmable positions per channel
• 100 kΩ nominal end-to-end resistance with linear taper
• 3-wire SPI-compatible serial interface with daisy-chain capability via SDO pin
• Power-on midscale preset and hardware reset (PR) pin functionality

Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Programmable filters, delays, and time constants
• Line impedance matching

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging format and tape/reel specifications. Ensure compatibility with standard 3-wire SPI logic levels and check absolute maximum ratings for power supply and current limits before integration.

Selection Notes

Select this model for applications requiring four independent digital potentiometers with 100 kΩ resistance. Consider the volatile memory type if power loss retention is not required. Verify that the 700 ppm/°C temperature coefficient meets system stability requirements compared to lower drift alternatives.

Part Context

This part belongs to the AD5204 family of 4-channel digital potentiometers. Variants within the series differ primarily by terminal resistance values (10 kΩ, 50 kΩ, 100 kΩ) and package types. The BRUZ suffix indicates the industrial temperature range and TSSOP packaging.

Replacement Considerations

Direct functional replacements include other AD5204 variants with different resistance values such as AD5204BRUZ10 or AD5204BRUZ50. Cross-model substitutes like the AD8400 series offer similar functionality but may require interface adjustments.