The AD5203 is a quad channel, 64-position digitally-controlled variable resistor (VR) device. These parts perform the same electronic adjustment function as a potentiometer or variable resistor, but with many advantages.
The AD5203 is a quad‑channel, 64‑position digitally‑controlled variable resistor that replaces four discrete potentiometers. It operates from a single supply of 2.7 V to 5.5 V and offers 6‑bit resolution with selectable nominal resistance values of 10 kΩ or 100 kΩ. The device includes a 3‑wire SPI‑compatible serial interface, power‑down mode with less than 5 pA shutdown current, and an active‑low reset pin that forces the wipers to mid‑scale.
The datasheet provides a functional block diagram, pin configuration and descriptions, full electrical and dynamic specifications, ordering guide with three package options (N‑24 DIP, SOL‑24 SOIC, RU‑24 TSSOP), typical performance graphs, and mechanical dimensions. It also includes test circuit diagrams for key parameters such as linearity, crosstalk and power‑supply rejection.
| Number of channels | 4 |
|---|---|
| Positions per channel | 64 |
| Supply voltage range | 2.7 V to 5.5 V |
| Resolution | 6 bits |
| Nominal resistance options | 10 kΩ or 100 kΩ |
| Operating temperature range | -40 °C to +85 °C |
| Shutdown current | < 5 pA |
The AD5203 operates from a single supply voltage between 2.7 V and 5.5 V.
The device provides 6‑bit resolution.
The AD5203 is offered with either 10 kΩ or 100 kΩ nominal resistance.