The AD5247 is a 128-position I2C-compatible digital potentiometer from Analog Devices. It has four resistance ranges of 5kΩ, 10kΩ, 50kΩ, and 100kΩ, 2.7V to 5.5V single supply voltage, and a wide operating temperature range of -40°C to +125°C. It consumes a typical current of 0.9µA.
The AD5247 provides a compact 2 mm × 2.1 mm SC70‑6 solution for 128‑position resistance adjustment. It operates from a single 2.7 V to 5.5 V supply, draws only 0.9 µA typical at 3.3 V, and retains a mid‑scale preset on power‑up. The device supports full read/write of the wiper register via an I2C‑compatible two‑wire interface.
Typical applications include mechanical potentiometer replacement, sensor trimming, RF amplifier biasing, LCD brightness and contrast control, and automotive electronics adjustment. The low‑power design enables battery‑operated use with constant bias to retain settings between power cycles.
| End‑to‑end resistance options | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
|---|---|
| Supply voltage range | 2.7 V to 5.5 V |
| Operating temperature range | ‑40 °C to +125 °C |
| Package size | 2 mm × 2.1 mm (SC70‑6) |
It uses an I2C‑compatible two‑wire serial bus.
The device provides 128 discrete wiper positions.
Power‑on the wiper is preset to the midscale position.
The temperature coefficient is 45 ppm/°C.