AD5293BRUZ-20

Digital Potentiometers Overview

The AD5293BRUZ-20 is a single-channel digital potentiometer with 1024 tap positions and a nominal resistance of 20 kΩ. It features calibrated ±1% resistor tolerance in Resistor Performance Mode, ensuring high precision for open-loop applications. The device supports single-supply operation from 9 V to 33 V or dual-supply operation from ±9 V to ±16.5 V. Communication is handled via an SPI-compatible serial interface, allowing for wiper setting readback. It operates within an extended industrial temperature range of −40°C to +105°C.

Digital Potentiometers Feature Summary

• 1024-position resolution with 20 kΩ nominal resistance
• Calibrated ±1% end-to-end resistor tolerance (R-Perf Mode)
• SPI-compatible serial interface with wiper readback capability
• Single-supply (9 V to 33 V) or dual-supply (±9 V to ±16.5 V) operation

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 '20' confirms the 20 kΩ resistance value against the manufacturer's ordering guide. Confirm package type is TSSOP-14 and check RoHS compliance status. Ensure logic supply voltage requirements (2.7 V to 5.5 V) match the system design before procurement.

Digital Potentiometers Selection Notes

Select this component when high voltage operation up to 33 V is required alongside precise resistance control. The R-Perf Mode is suitable for applications demanding tight tolerance matching without closed-loop feedback. Consider the 20 kΩ value relative to the target bandwidth and load capacitance, as higher resistance values reduce bandwidth.

Digital Potentiometers Part Context

This part belongs to the AD5293 family of single-channel digital potentiometers. It shares the same pinout and interface protocol with 50 kΩ and 100 kΩ variants, differing primarily in nominal resistance and associated dynamic characteristics such as bandwidth and settling time.

Digital Potentiometers Replacement Considerations

Direct substitutes include other AD5293 variants with different resistance values (e.g., AD5293BRUZ-50, AD5293BRUZ-100). Verify that the replacement maintains the required resistance range and voltage ratings for the specific circuit application.