ISL90843UIU1027Z

ISL90843 T ODUC T TE PR E ODUC L R O P S E T OB U IT BST LE SU L90841 Data Sheet IS POSSIB Quad Digital Controlled Potentiometers (XDCP™) March 29, 2006 Low Noise, Low Power, I2C® Bus, 256 Taps FN8095.2 Features • Four potentiometers in one package The ISL90843 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. • 256 resistor taps–0.4% resolution • I2C serial interface - Two address pins allow up to four devices/bus 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. • Wiper resistance: 70 typical @ 3.3V • Standby current