AD5204BCPZ10-REEL

Overview

The AD5204BCPZ10-REEL is a four-channel, 256-position digitally controlled variable resistor from Analog Devices. It operates on a single supply of +2.7 V to +5.5 V or ±2.7 V dual supplies. The device features a nominal end-to-end resistance of 10 kΩ with a temperature coefficient of 700 ppm/°C. It utilizes a 3-wire SPI-compatible serial interface for programming. Key electrical parameters include a wiper resistance of 50 Ω to 100 Ω and a shutdown current of less than 5 μA. The unit is housed in a 24-lead TSSOP package and supports an operating temperature range of −40°C to +85°C.

Feature Summary

• Four independently programmable channels with 256 digital positions
• 10 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 functionality

Applications

• Mechanical potentiometer replacement in industrial systems
• Instrumentation gain and offset adjustment circuits
• Programmable voltage-to-current conversion stages
• Line impedance matching networks

Procurement Notes

Verify the specific suffix REEL indicates tape-and-reel packaging when sourcing. Confirm the B grade corresponds to the specified industrial temperature range and tolerance levels. Ensure the 10 designation matches the required 10 kΩ resistance value for the target circuit design.

Selection Notes

Select this component for applications requiring multiple independent variable resistors without mechanical wear. The 10 kΩ variant offers a bandwidth of approximately 721 kHz at 2.7 V. Consider the 50 kΩ or 100 kΩ variants if higher resistance values are necessary for lower power consumption or specific time constant requirements.

Part Context

This part belongs to the AD5204/AD5206 family of digital potentiometers. The AD5204 provides four channels, while the AD5206 provides six. Both share identical control logic and interface protocols. The BC suffix typically denotes the industrial temperature grade and specific manufacturing lot characteristics defined by Analog Devices.

Replacement Considerations

Direct replacements include other 4-channel digital potentiometers from Analog Devices such as the AD8403 series, though pinouts and channel counts must be verified. Cross-vendor substitutes require careful evaluation of serial interface compatibility and wiper resistance specifications.