The 256-position Two-Time Programmable I2C Digital Potentiometer AD5170 Rev. A is an integrated miniature potentiometer that uses I2C communications, features 256 positions, double-time programmable, set-and-forget, free adjustment, and low power consumption.
The document describes the AD5170 as a 256-position, two-time programmable (TTP) digital potentiometer that utilizes fuse link technology for permanent programming. It offers unlimited adjustments before one-time programming (OTP) activation and includes a unique temporary OTP overwrite feature allowing new settings after the fuse is blown.
The device supports end-to-end resistance values of 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ in an MSOP-10 package. Key features include a low temperature coefficient of 35 ppm/°C, fast settling time, and operation within a single-supply range of 2.7 V to 5.5 V.
| End-to-end resistance options | 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
|---|---|
| Package type and dimensions | MSOP-10 (3 mm x 4.9 mm) |
| Resistance Temperature Coefficient | 35 ppm/°C |
| Supply current (maximum) | 6 µA |
| Operating temperature range | -40°C to +125°C |
It has a temporary OTP overwrite feature that allows for new adjustments even after the fuse has been blown, though the setting restores during power-up.
The device operates on a single supply ranging from 2.7 V to 5.5 V.