The AD5258 is a nonvolatile, 64-position, digital potentiometer with an I2C® compatible interface. It features EEPROM storage to retain wiper settings after power-down and a VLOGIC pin to provide increased interface flexibility. The AD5258 is rated for operation over the -40°C to +85°C temperature range and with a supply voltage of 3 V to 5 V.
The AD5258 provides a compact MSOP‑10 packaged solution for 64‑position adjustment applications, replacing mechanical potentiometers with solid‑state reliability. It features nonvolatile memory that retains wiper settings, a VIOAIC pin for flexible interfacing, and address‑decode pins (ADO, AD1) that allow up to four devices on a single I²C bus. The device operates from a single 3 V to 5 V supply and supports a wide temperature range of –40 °C to +85 °C.
The datasheet includes detailed electrical characteristics, timing specifications, absolute maximum ratings, pin descriptions, and typical performance graphs. It also lists typical applications such as LCD panel VCOM adjustment, programmable power supplies, RF amplifier biasing, and automotive electronics adjustment.
| Number of positions | 64 |
|---|---|
| Package | MSOP‑10 (3 mm × 4.9 mm) |
| Supply voltage range | 2.7 V to 5.5 V |
| Power‑on EEPROM refresh time | < 1 ms |
| Data retention | 100 years at 55 °C |
| Operating temperature range | -40 °C to +85 °C |
| Maximum devices per I²C bus | 4 |
The AD5258 uses an I²C‑compatible digital interface for reading and writing the wiper register and EEPROM.
Up to four AD5258 devices can be placed on a single bus using the ADO and AD1 address‑decode pins.
The EEPROM refresh time after power‑on is less than 1 ms.
The device operates from –40 °C up to +85 °C.