The document describes the features and characteristics of the AD5220 model product, including a 128-position digitally controlled variable resistor, low power consumption, mechanical potentiometer replacement, remote adjustment applications, etc.
The AD5220 is a single-channel, 128-position digitally controlled variable resistor (VR) designed to replace mechanical potentiometers. It features an internal UP/DOWN counter controlled by digital inputs for remote or push-button adjustment without requiring a microcontroller.
Available in 10 kΩ, 50 kΩ, and 100 kΩ end-to-end resistance values, the device operates over an industrial temperature range of -40°C to +85°C. It is offered in SO-8, DIP, and uSOIC packages with very low power consumption (40 pA max) and includes specifications for both rheostat and potentiometer divider modes.
| Resolution | 128 positions (7 bits) |
|---|---|
| Resistance Values | 10 kΩ, 50 kΩ, or 100 kΩ |
| Supply Voltage Range | +2.7 V to +5.5 V |
| Operating Temperature Range | -40°C to +85°C |
| Max Supply Current | 40 µA (at 5V) |
| Package Types | SO-8, DIP (N-8), uSOIC (RM-8) |
The device is available with end-to-end terminal resistances of 10 kΩ, 50 kΩ, or 100 kΩ.
No, it uses a simple digital interface with mechanical or push-button switches that eliminates the need for microcontrollers.
The device features very low power consumption with a maximum supply current of 40 µA at +5V.