Intersil ISL90810WIU8Z

Description
The ISL90810 integrates a digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit. The digitally controlled potentiometers are implemented with a combination 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 commence at mid-scale (128 tap position).

Features
256 resistor taps - 0.4% resolution
I²C serial interface with write/read capability
Power-on preset to mid-scale (128 tap position)
Wiper resistance: 70Ω typical @ 3.3V
Standby current 5μA max
Power supply: 2.7V to 5.5V
50kΩ, 10kΩ total resistance
8 Ld MSOP
Pb-free plus anneal available (RoHS compliant)

Applications
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.