intersil ISL23711 handbook
Datasheet
ISL23711 is a digitally controlled potentiometer that is sensitive to electrostatic discharge. It has terminal voltages of ±3V or ±5V, 128 taps, and is controlled via an I2C serial interface. The device can be used as a three-terminal potentiometer or a two-terminal variable resistor in various applications including industrial and automotive control, parameter and bias adjustments, and amplifier bias and control.