ISL95711

The Intersil ISL95711 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a I²C interface.

The potentiometer is implemented by a resistor array composed of 127 resistive elements and a wiper switching network. The wiper terminal can be connected to either end of the resistor array or at any one of the Tap Positions in between, providing 128 steps of resolution between RL and RH. The "position" of the wiper is determined by the value assigned to the volatile Wiper Register (WR). This register ISL95711 has an associated non-volatile Initial Value Register (IVR).

The value stored in the IVR will be written into the WR at power-up, allowing wiper position recall after power interruption. The WR and the IVR can be directly written to and read from using standard I²C interface protocol. The ISL95711 is available in either a 10kΩ or 50kΩ version.

The ISL95711 can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including:

• Industrial and automotive control

• Parameter and bias adjustments

• Amplifier bias and control