AD5231BRUZ10

Digital Potentiometers Overview

The AD5231BRUZ10 is a single-channel, nonvolatile memory digital potentiometer with 1024-position resolution and a nominal terminal resistance of 10 kΩ. It operates on a single supply from 2.7 V to 5.5 V or dual supplies of ±2.25 V to ±2.75 V. The device features an SPI-compatible serial interface for wiper setting control and includes 28 bytes of extra user-defined nonvolatile memory. Key specifications include a typical power-on refresh time of 140 µs, 100-year data retention at 55°C, and operation across the extended industrial temperature range of −40°C to +85°C.

Digital Potentiometers Feature Summary

• 1024-step resolution with nonvolatile EEMEM maintaining wiper settings after power loss
• SPI-compatible 4-wire serial interface supporting daisy-chain operations and wiper readback
• Advanced programming modes including linear increment/decrement and ±6 dB/step log taper adjustment
• Integrated 28-byte extra nonvolatile memory for user-defined system identification or lookup tables

Digital Potentiometers Applications

• Mechanical potentiometer replacement in solid-state systems
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion circuits
• Sensor calibration and low-resolution DAC replacement

Digital Potentiometers Procurement Notes

Verify the specific suffix 'U' indicates the TSSOP-16 package and 'Z' denotes lead-free compliance when sourcing. Confirm that the '10' designation corresponds to the 10 kΩ terminal resistance variant. Ensure the ordering information matches the manufacturer's current datasheet revision to avoid discrepancies in pinout or electrical characteristics.

Digital Potentiometers Selection Notes

Select this component when persistent analog resistance adjustment is required without external battery-backed memory. The 10 kΩ value suits moderate impedance applications; higher resistance options (50 kΩ, 100 kΩ) are available if lower current consumption or different bandwidth requirements exist. Verify that the system's SPI controller supports the required clock polarity and phase configurations.

Digital Potentiometers Part Context

This part belongs to the AD5231 family of nonvolatile digital potentiometers manufactured by Analog Devices Inc. The BRU prefix identifies the commercial temperature grade and TSSOP-16 surface-mount packaging. The model distinguishes itself from other variants by its specific 10 kΩ resistance value and integrated EEPROM functionality for retaining settings across power cycles.

Digital Potentiometers Replacement Considerations

Direct pin-for-pin replacements within the same family include the AD5231BRU50 (50 kΩ) and AD5231BRU100 (100 kΩ). These alternatives share identical interfaces and memory structures but differ in terminal resistance and associated dynamic performance metrics such as bandwidth and settling time.