AD5291BRUZ-20-RL7

Digital Potentiometers Overview

The AD5291BRUZ-20-RL7 is a single-channel digital potentiometer featuring 256-position resolution and a nominal resistance of 20 kΩ. It operates on a single supply from +9 V to +33 V or dual supplies of ±9 V to ±16.5 V, with a logic supply range of 2.7 V to 5.5 V. The device includes nonvolatile memory for wiper setting retention and supports SPI-compatible serial interfaces. It guarantees a maximum ±1% resistor tolerance error in performance mode and functions within an industrial temperature range of −40°C to +105°C.

Digital Potentiometers Feature Summary

• 256-position resolution with 20-times programmable nonvolatile memory
• Maximum ±1% nominal resistor tolerance error in R-Perf mode
• SPI-compatible serial interface with wiper setting readback capability
• Wide voltage operation: +9 V to +33 V single-supply or ±9 V to ±16.5 V dual-supply

Digital Potentiometers Applications

• Mechanical potentiometer replacement
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion
• Sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific suffix 'RL7' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 20 kΩ resistance value aligns with circuit design requirements before procurement. Ensure compatibility with the intended SPI controller logic levels.

Digital Potentiometers Selection Notes

Select this component when high precision is required, as it offers guaranteed ±1% tolerance in resistor performance mode. The 256-position resolution provides sufficient granularity for many control applications. Verify that the operating voltage range fits the system's power supply architecture, as it supports both single and dual supply configurations.

Digital Potentiometers Part Context

This part belongs to the AD5291/AD5292 family of digital potentiometers. The AD5291 variant specifically provides 256 positions, whereas the AD5292 offers 1024 positions. Both share similar features including nonvolatile memory and high-voltage operation capabilities.

Digital Potentiometers Replacement Considerations

Direct replacements include other AD5291 variants with different resistance values (e.g., AD5291BRUZ-50-RL7 for 50 kΩ) or the AD5292 series for higher resolution. Ensure pinout compatibility and verify that the replacement maintains the required voltage and temperature specifications.