AD5203AN10

Overview

The AD5203AN10 is a quad-channel, 64-position digital potentiometer from Analog Devices Inc., housed in a 24-lead narrow body plastic DIP package. It operates on a single +2.7 V to +5.5 V supply and features a nominal resistance of 10 kΩ with a –30% to +30% tolerance. The device utilizes a 3-wire SPI-compatible serial interface for data loading at rates up to 10 MHz. Key electrical characteristics include a differential nonlinearity (DNL) of ±0.25 LSB, integral nonlinearity (INL) of ±0.75 LSB, and a shutdown current of less than 5 mA. It supports midscale reset and maintains latch settings during power-down.

Feature Summary

• Quad-channel architecture replacing four mechanical potentiometers
• 10 kΩ nominal resistance with 6-bit resolution (64 positions)
• 3-wire serial interface supporting daisy-chaining via SDO pin
• Active-low SHDN pin for microwatt power consumption state

Applications

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

Procurement Notes

Verify the specific package variant required, as the AD5203 family includes SOIC and TSSOP options alongside the N-24 DIP. Confirm that the 10 kΩ resistance value matches the design requirements, as 100 kΩ variants are also available. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structures.

Selection Notes

Select the AD5203AN10 when a quad-channel solution is needed to reduce board space compared to discrete components. The 10 kΩ value offers a bandwidth of approximately 600 kHz, suitable for moderate-speed applications. For higher resolution needs, consider the 256-position AD8403. Ensure the system logic levels are compatible with the 3-wire serial interface timing requirements.

Part Context

The AD5203 series serves as a direct electronic replacement for mechanical potentiometers, offering programmability without moving parts. The AN10 suffix specifically denotes the 10 kΩ version in the 24-lead DIP package. This component is part of Analog Devices' broader portfolio of digitally controlled resistors, designed to simplify circuit tuning in industrial and consumer electronics.

Replacement Considerations

For pin-compatible upgrades requiring higher resolution, the AD8403 provides 256 positions. If a different resistance value is needed, the AD5203AR100 or AD5203AN100 offer 100 kΩ options in equivalent packages. Ensure that the replacement device supports the same serial interface protocol if migrating from other digital potentiometer brands.