AD5259 Rev. A is a nonvolatile, I2C-compatible 256-position digital potentiometer. It features 256 positions of infinite continuous programmable resistance that can be controlled via an I2C communications interface. AD5259 is low power, high performance digital potentiometer suitable for various applications such as LCD potentiometers, power supplies, automation, communications etc.
The AD5259 digital potentiometer provides 256‑position adjustment in a compact LFCSP‑10 or MSOP‑10 package. It features nonvolatile memory that retains wiper settings and resistor tolerance, and supports up to four devices on a single I²C bus using address pins ADO and AD1.
It operates from a 3 V to 5 V single supply, works over –40 °C to +85 °C, and offers data retention of 100 years at 55 °C. The device includes programmable pins, EEPROM write‑protect, and a variety of end‑to‑end resistance options (5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ).
| Package options | Thin LFCSP‑10 (3 mm × 3 mm × 0.8 mm) or Compact MSOP‑10 (3 mm × 4.9 mm × 1.1 mm) |
|---|---|
| Number of positions | 256 |
| End‑to‑end resistance options | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
| Supply voltage range | 3 V to 5 V single supply |
| Operating temperature range | –40 °C to +85 °C |
| Data retention | 100 years typical at 55 °C |
| EEPROM endurance | 100 k cycles (typical 700 k cycles) |
| Maximum junction temperature | 150 °C |
| Maximum devices per bus | 4 |
Up to four devices can be connected on a single bus using the address pins ADO and AD1.
The device retains data for 100 years at 55 °C.
It operates from a single supply of 3 V to 5 V.
The AD5259 works from –40 °C up to +85 °C.