The AD5227 64-Position Up/Down Control Digital Potentiometer is an ultra-low power, low temperature coefficient, high speed switching, low cost digital potentiometer with 10 kΩ, 50 kΩ, and 100 kΩ end-to-end terminal resistance options. It is programmed via the I2C interface, making it simple and flexible to use. The device is suitable for use as replacements for mechanical potentiometers and trimmers, as well as LCD backlight, contrast, and brightness controls, portable electronics level adjustment, programmable power supplies, digital trimmer replacements, and automatic closed-loop control applications.
The AD5227 is a 64-position digital potentiometer designed to replace mechanical potentiometers and trimmers. It features a simple 3-wire up/down interface that supports manual switching or high-speed digital control. The device presets to midscale at power-up and includes a midscale preset function. It is available in a compact thin SOT-23-8 Pb-free package.
| End-to-end terminal resistance | 10 kΩ, 50 kΩ, 100 kΩ |
|---|---|
| Resolution | 64 positions |
| Operating temperature range | -40°C to +105°C |
| Supply voltage range | 2.7 V to 5.5 V |
| Typical supply current | 0.4 μA |
| Maximum supply current | 3 μA |
| Adjustment settling time | 1 μs |
| Package type | SOT-23-8 |
The AD5227 is a 64-position digital potentiometer.
The device is available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end terminal resistance versions.
The device is guaranteed to operate over the automotive temperature range of −40°C to +105°C.
It performs the same electronic adjustment function as a 5 V potentiometer or variable resistor using a simple 3-wire up/down interface.