AD5203AR10-REEL

Overview

The AD5203AR10-REEL is a quad-channel, 64-position digital potentiometer from Analog Devices. It features four independent variable resistors with a nominal end-to-end resistance of 10 kΩ and linear taper. The device operates on a single supply voltage ranging from +2.7 V to +5.5 V. Control is managed via a 3-wire SPI-compatible serial interface supporting clock rates up to 10 MHz. Each channel includes a volatile latch for resistance settings, hardware reset (RS) to midscale, and power shutdown (SHDN) functionality. The component is housed in a 24-lead Wide Body SOIC package.

Feature Summary

• Quad-channel architecture with 64 programmable positions per resistor
• 10 kΩ nominal resistance with ±1% channel-to-channel matching tolerance
• 3-wire SPI-compatible serial interface with daisy-chain capability via SDO
• Hardware Reset (RS) forces wipers to midscale; Shutdown (SHDN) minimizes current consumption

Applications

• Mechanical potentiometer replacement in industrial systems
• Programmable filters, delays, and time constant adjustments
• Volume control and audio panning circuits
• Line impedance matching applications
• Power supply voltage adjustment

Procurement Notes

Verify the specific suffix 'REEL' indicates tape-and-reel packaging when sourcing. Confirm the '10' designation corresponds to the 10 kΩ resistance value. Check RoHS compliance status as historical data may vary by production lot. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structures.

Selection Notes

Select this model for applications requiring four independent digitally controlled resistors with 6-bit resolution. The 10 kΩ value is suitable for general-purpose signal conditioning where low thermal noise is not critical compared to higher resistance variants. Consider the AD8403 if 256-position (8-bit) resolution is required for finer adjustment steps. Ensure the system supports the 3-wire serial protocol and provides adequate pull-up for the open-drain SDO pin if daisy-chaining.

Part Context

The AD5203 belongs to Analog Devices' family of 64-position digital potentiometers. It serves as a lower-resolution alternative to the AD8403, which offers 256 positions. The AR10 variant specifically denotes the 10 kΩ resistance option packaged in the 24-lead SOIC format. This part replaces mechanical pots in space-constrained designs requiring software-adjustable resistance values.

Replacement Considerations

Public confirmed substitute part numbers: AD5203AN10, AD5203ARU10.