AD5203ARUZ10-REEL

Overview

The AD5203ARUZ10-REEL is a quad-channel, 64-position digital potentiometer in a TSSOP-24 package. It features four independent variable resistors with a nominal resistance of 10 kΩ and a temperature coefficient of 700 ppm/°C. The device operates on a single +2.7 V to +5.5 V supply and utilizes a 3-wire SPI-compatible serial interface for data loading at rates up to 10 MHz. Each channel includes a volatile latch to maintain settings during shutdown. Key electrical parameters include a wiper resistance of 45–100 Ω, differential nonlinearity of ±0.25 LSB, and integral nonlinearity of ±0.5 LSB.

Feature Summary

• Quad-channel architecture replacing four mechanical potentiometers
• 6-bit resolution providing 64 distinct tap positions per channel
• Active low SHDN pin enables microwatt power shutdown state
• Serial daisy-chaining capability via open-drain SDO output

Applications

• Mechanical potentiometer replacement
• Programmable filters and time constants
• Volume control and panning circuits
• Line impedance matching
• Power supply adjustment

Procurement Notes

Verify the 'RU' suffix confirms the TSSOP-24 package type. Confirm the '10' suffix indicates the 10 kΩ resistance variant. Check RoHS compliance status as datasheet versions may vary. Ensure ESD precautions are observed during handling due to sensitivity.

Selection Notes

Select this model for applications requiring four independent 10 kΩ digitally controlled resistors. Choose the 100 kΩ variant (AD5203ARUZ100) if higher resistance is needed. Consider the AD8403 for higher 256-position resolution. Ensure the system voltage falls within the 2.7 V to 5.5 V range.

Part Context

This component belongs to the AD5203 family of quad-channel digital potentiometers. It serves as a lower-resolution alternative to the AD8403, which offers 256 positions. The device is designed for industrial temperature ranges (-40°C to +85°C) and provides a compact surface-mount solution for analog signal conditioning.

Replacement Considerations

Public confirmed substitute part numbers: AD5203ARU100 (100 kΩ version), AD8403 (higher resolution). Verify pin compatibility and resistance values before substitution.