AD5292BRUZ-100-RL7

Digital Potentiometers Overview

The AD5292BRUZ-100-RL7 is a single-channel, 10-bit (1024-position) digital potentiometer manufactured by Analog Devices. It features a nominal resistance of 100 kΩ with a maximum ±1% end-to-end resistor tolerance error in Resistor Performance mode. The device incorporates 20-times programmable (20-TP) nonvolatile memory for wiper position storage and power-on refresh. It operates on a single supply from +9 V to +33 V or dual supplies of ±9 V to ±16.5 V, controlled via an SPI-compatible serial interface.

Digital Potentiometers Feature Summary

• 10-bit resolution with 1024 tap positions
• Maximum ±1% R-Tolerance Error in Resistor Performance mode
• 20-times programmable nonvolatile wiper memory
• SPI-compatible serial interface with readback capability

Digital Potentiometers Applications

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

Digital Potentiometers Procurement Notes

Verify the specific suffix 'RL7' against the manufacturer's ordering guide to confirm reel packaging specifications. Ensure the logic supply voltage (VLOGIC) matches the system controller levels between 2.7 V and 5.5 V. Confirm that the application voltage range falls within the specified single-supply (+9 V to +33 V) or dual-supply limits.

Digital Potentiometers Selection Notes

Select this component when high resolution (10 bits) and precise resistor tolerance are required compared to the 8-bit AD5291 variant. Verify that the terminal voltage range (VSS to VDD) accommodates the signal swing. Consider the 100 kΩ nominal value against available 20 kΩ and 50 kΩ options based on current handling requirements and bandwidth needs.

Digital Potentiometers Part Context

This part belongs to the AD5291/AD5292 family of DigiPOT+ digital potentiometers. The AD5292 specifically offers 1024 positions, whereas the AD5291 provides 256 positions. Both share similar interfaces and memory features but differ in resolution and linearity specifications.

Digital Potentiometers Replacement Considerations

The AD5291BRUZ-100-RL7 is a compatible alternative if 8-bit (256-position) resolution is sufficient. Verify that the lower resolution meets the application's precision requirements before substitution.

Digital Potentiometers FAQ

What is the difference between Normal Mode and Resistor Performance Mode?

Resistor Performance Mode guarantees a tighter nominal resistor tolerance error (±1%) across specific code ranges, whereas Normal Mode has a wider tolerance specification (±7%). Resistor Performance Mode is intended for precision applications.

How does the 20-TP memory function?

The device includes 20-times programmable nonvolatile memory that stores the wiper setting. Upon power-up, the RDAC register automatically refreshes from this memory. A fuse blow command can permanently freeze the wiper position.

What is the maximum serial clock frequency?

The maximum SCLK frequency is 50 MHz, allowing data transfer rates up to this limit.