This document describes the features and characteristics of the AD5291/AD5292 digital potentiometers, including single-channel, 256-/1024-position resolution, maximum ±1% resistor tolerance error, and 20-times programmable wiper memory.
The AD5291/AD5292 are single-channel digital potentiometers that combine variable resistor performance with nonvolatile memory (NVM) in a compact package. They offer 256 or 1024 positions and support nominal resistances of 20 kΩ, 50 kΩ, and 100 kΩ. The devices feature an industry-leading maximum ±1% resistor tolerance error in performance mode and include 20-times programmable wiper memory.
| Resolution | 8 Bits (256 or 1024 positions) |
|---|---|
| Nominal Resistance | 20 kΩ, 50 kΩ, and 100 kΩ |
| Resistor Tolerance Error (R-Perf Mode) | Maximum ±1% |
| Wiper Memory | 20-times programmable |
| Temperature Coefficient (Rheostat Mode) | 35 ppm/°C |
| Operating Temperature Range | -40°C to +105°C |
| Package Type | 14-lead TSSOP |
The AD5291/AD5292 offer a maximum ±1% nominal resistor tolerance error when operating in resistor performance mode.
The devices feature 20-times programmable memory, allowing for permanent programming of the wiper setting.
These digital potentiometers support a single-supply operation ranging from +9 V to +33 V.