AD5204BRZ10-REEL

Overview

The AD5204BRZ10-REEL is a quad-channel digital potentiometer IC from Analog Devices, featuring four independently programmable variable resistors with 256 tap positions. It utilizes a 3-wire SPI-compatible serial interface for control and operates on a single supply voltage ranging from +2.7 V to +5.5 V or a dual supply of ±2.7 V. The nominal end-to-end resistance is 10 kΩ with a temperature coefficient of 700 ppm/°C. Each channel includes an RDAC latch to maintain settings during power-down modes.

Feature Summary

• Quad-channel architecture with 256-position resolution per channel
• 10 kΩ nominal terminal resistance with ±30% tolerance at 25°C
• 3-wire SPI-compatible serial interface (CS, CLK, SDI) with daisy-chain capability via SDO
• Power-on midscale preset and hardware reset pin (PR) for fault recovery

Applications

• Mechanical potentiometer replacement in embedded systems
• Instrumentation gain and offset adjustment circuits
• Programmable voltage-to-current conversion stages
• Line impedance matching in signal transmission paths

Procurement Notes

Verify the ordering suffix REEL indicates tape-and-reel packaging for automated assembly. Confirm the BRZ designation corresponds to the industrial temperature range (-40°C to +85°C) and lead-free RoHS compliance. Cross-reference the specific 10 kΩ variant against the manufacturer's current production status to ensure availability.

Selection Notes

Select this component when four independent digital resistors are required within a single package. Ensure the system logic levels align with the specified input thresholds for 3V and 5V operation. Consider the 10 kΩ value if lower thermal noise and higher bandwidth (~721 kHz) are prioritized over the 50 kΩ or 100 kΩ alternatives.

Part Context

This part belongs to the AD5204 family of 4-channel digital potentiometers. The '10' suffix specifies the 10 kΩ resistance value, while 'BRZ' denotes the industrial temperature grade and package type. It serves as the electronic equivalent of mechanical potentiometers, offering non-volatile-like retention through latch storage during active operation.

Replacement Considerations

Direct functional equivalents include other 4-channel digital potentiometers with SPI interfaces and similar resistance values. Verify pin compatibility with the 24-lead SOIC package if substituting. Check if the replacement supports the required daisy-chain functionality and shutdown current specifications.