AD5271BCPZ-20-RL7

Digital Potentiometers Overview

The AD5271BCPZ-20-RL7 is a single-channel, 256-position digital rheostat manufactured by Analog Devices Inc. It features an SPI-compatible interface and incorporates 50-times programmable (50-TP) nonvolatile memory to retain wiper settings across power cycles. The device offers a nominal resistance of 20 kΩ with a maximum ±1% end-to-end resistor tolerance error in performance mode. Operating on a single supply from 2.7 V to 5.5 V or dual supplies of ±2.5 V to ±2.75 V, it ensures low temperature coefficients and high precision for variable resistance applications.

Digital Potentiometers Feature Summary

• 256-position resolution with 8-bit control
• 50-times programmable (50-TP) nonvolatile wiper memory
• Maximum ±1% nominal resistor tolerance error
• SPI-compatible serial interface with readback capability

Digital Potentiometers Applications

• Mechanical rheostat replacements
• Op-amp variable gain control
• Instrumentation gain and offset adjustment
• Programmable voltage to current conversions
• Sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements, as the device operates within a 2.7 V to 5.5 V range. Confirm that the 20 kΩ nominal resistance aligns with the target circuit design before procurement.

Digital Potentiometers Selection Notes

Select this component when a compact, single-channel digital rheostat with high precision is required. The AD5271 provides 256 positions, suitable for applications needing finer resolution than 128-step devices but less complexity than 1024-step models. Ensure the application supports SPI communication and requires nonvolatile storage for wiper position retention.

Digital Potentiometers Part Context

This part belongs to the AD5270/AD5271 family of digital rheostats. The AD5271 variant specifically provides 256 positions (8-bit), whereas the AD5270 offers 1024 positions (10-bit). Both share similar electrical characteristics, including the 50-TP memory feature and SPI interface, differing primarily in resolution and code range.

Digital Potentiometers Replacement Considerations

The AD5270BCPZ-20-RL7 serves as a higher-resolution alternative within the same family. Verify pinout compatibility and software command set alignment when substituting between AD5270 and AD5271 variants.