AD5204BRZ100-REEL

Overview

The AD5204BRZ100-REEL is a quad-channel digital potentiometer from Analog Devices, featuring 256 programmable positions per channel. It operates on a single supply of +2.7 V to +5.5 V or dual supplies of ±2.3 V to ±2.7 V. The nominal end-to-end resistance is 100 kΩ with a temperature coefficient of 700 ppm/°C and a tolerance of ±30%. The device utilizes a 3-wire SPI-compatible serial interface for control and includes power-on midscale preset functionality. It is housed in a 24-lead SOIC package and supports an industrial operating temperature range of −40°C to +85°C.

Feature Summary

• Quad-channel architecture with 256 independent tap positions
• 100 kΩ nominal terminal 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

Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Line impedance matching

Procurement Notes

Verify the ordering suffix REEL indicates reel packaging. Confirm the BRZ suffix corresponds to the SOIC-24 package and industrial temperature grade. Ensure the final digit '100' matches the required 100 kΩ resistance value for the specific application design.

Selection Notes

Select this component when four independent variable resistors are needed within a single IC footprint. The 100 kΩ resistance value suits applications requiring higher impedance levels compared to the 10 kΩ or 50 kΩ variants. Verify that the system logic levels are compatible with the 3-wire serial interface requirements at the target supply voltage.

Part Context

This part belongs to the AD5204 family of 4-channel digital potentiometers. It shares functional similarities with the AD5206, which offers six channels, and other members like the AD5200 series. The BRZ100 designation specifically identifies the 100 kΩ resistor variant in the standard SOIC package.

Replacement Considerations

The AD5204BRZ50-REEL serves as a parameter-equivalent alternative if a lower 50 kΩ resistance value is acceptable. Other AD5204 variants with different resistance codes (e.g., 10, 50) may be substituted provided the resistance specifications align with the circuit requirements.