This document describes the features and characteristics of the AD5259, a nonvolatile, I2C-compatible, 256-position digital potentiometer.
The AD5259 is a compact, nonvolatile digital potentiometer designed for applications requiring electronic adjustment similar to mechanical potentiometers but with enhanced resolution and solid-state reliability. It features an I2C-compatible interface that allows control of the wiper settings and reading back register content via SDA and SCL pins.
The device offers end-to-end resistance values of 5 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ with a stored tolerance accuracy of 0.1%. It is available in two packages: the Thin LFCSP-10 (3 mm x 3 mm) and the Compact MSOP-10 (3 mm x 4.9 mm). A separate VLOGIC pin provides increased interface flexibility, allowing operation with logic voltages different from the analog supply.
| End-to-end resistance options | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
|---|---|
| Resistance tolerance accuracy | 0.1% |
| Number of positions | 256-position |
| Operating temperature range | -40°C to +125°C |
| Supply voltage range (VDD) | 3 V to 5.5 V |
| Data retention time | 100 years |
| EEPROM endurance | 700 kCycles (typical) |
The device is available with end-to-end resistances of 5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
Yes, it features an I2C-compatible interface used to control wiper settings and read back content.
The resistance tolerance stored in EEPROM provides an end-to-end tolerance accuracy of 0.1%.