AD5245 Software (zip, 5,704,704 bytes) The software can be operated in Windows 2000, NT, and XP. The AD5245 is a 256-position, I2C, single channel digital potentiometer, sometimes referred to as an RDAC. The AD5245 can be controlled digitally by a Micro-Controller, DSP, or Micro-Processor via a 2-wire serial interface that allows multiple modes of operation and adjustment. The evaluation board simplifies control of the RDAC by PC software programming such that no programming skills or languages are required.