AD5259 is a 256-bit digital potentiometer with passive storage.
The AD5259 is a compact, nonvolatile digital potentiometer offering 256‑position adjustment in either a thin LFCSP‑10 (3 mm × 3 mm × 0.8 mm) or a compact MSOP‑10 (3 mm × 4.9 mm × 1.1 mm) package. It features an I²C‑compatible interface, EEPROM‑stored wiper settings and resistance tolerance, and supports up to four devices on a single bus using address pins ADO and AD1.
Key specifications include a supply range of 3 V to 5 V, operating temperature from –40 °C to +85 °C, end‑to‑end resistance options of 5 kΩ, 10 kΩ, 50 kΩ or 100 kΩ, and a typical data‑retention time of 100 years at 55 °C. The device also offers 0.1 % resistance tolerance, a maximum junction temperature of 150 °C, and ESD protection up to 4000 V.
| Number of positions | 256 |
|---|---|
| Package options | LFCSP‑10 (3 mm × 3 mm × 0.8 mm) or MSOP‑10 (3 mm × 4.9 mm × 1.1 mm) |
| Supply voltage range | 3 V to 5 V single supply |
| Operating temperature range | –40 °C to +85 °C |
| Resistance tolerance | 0.1 % accuracy |
| Data retention | 100 years typical at 55 °C |
| Maximum junction temperature | 150 °C |
| Maximum continuous current | 5 mA |
| ESD protection rating | up to 4000 V |
The device retains data for a typical 100 years when stored at 55 °C.
It operates from a single supply of 3 V to 5 V.