Overview: DATASHEET ISL90810
Single Digitally Controlled Potentiometer (XDCP™) Low Noise/Low Power/I2C Bus/256 Taps FN8234 Rev 3.00 September 10, 2015 The ISL90810 integrates a digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with a bination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the I2C bus interface. Each potentiometer has an associated Wiper Register (WR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. When powered on the ISL90810’s wiper will always mence at mid-scale (128 tap position).
The DCP can be used as three-terminal potentiometer or as two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.
