The AD5222 is a 128-bit dual channel digital potentiometer that performs the same electronic adjustment function as a potentiometer or variable resistor.
The AD5222 is a 128‑position, 2‑channel digitally‑controlled variable resistor that replaces mechanical potentiometers. It operates with either a single 2.7 V‑5.5 V supply or dual supplies (+2.7 V and –2.7 V) and offers 7‑bit resolution for precise resistance adjustment.
The document provides full electrical specifications, absolute maximum ratings, pin‑out descriptions, programming methods for rheostat and divider modes, typical performance curves, ordering information, and mechanical dimensions for the SO‑14 and TSSOP‑14 packages.
| Resolution | 7 Bits |
|---|---|
| Operating Temperature Range | -40°C to +85°C |
| Maximum Junction Temperature | 150°C |
| Package Type | SO‑14 (14‑Lead Narrow Body) |
The AD5222 provides 128 positions per channel.
The device has a 7‑bit resolution.
The resistor temperature coefficient is –35 ppm/°C.