The The MikroElektronika's DIGI POT 9 Click is a compact add-on board used as a digitally controlled potentiometer. This board features the AD5235, a dual channel, nonvolatile memory, digitally controlled potentiometer from Analog Devices. The AD5235's versatile programming via an SPI-compatible serial interface allows multiple modes of operation and adjustment. The resistor wiper position is determined by the RDAC register contents, which act as a scratchpad register, allowing unlimited changes of resistance settings. The nominal resistance of the RDAC between terminal A and terminal B RAB is 250 kΩ with 1024 positions 10-bit resolution. This Click board can be used as mechanical potentiometer replacements, voltage-to-current conversions, gain and offset adjustment, and many other applications.

Dual channel
1024 position resolution
250 kΩ nominal resistance
SPI compatible serial interface
Nonvolatile memory stores wiper settings
100 years of typical data retention