ISL90842

DATASHEET ISL90842 Quad Digitally Controlled Variable Resistors Low Noise, Low Power I2C Bus, 256 Taps FN8096 Rev 1.00 January 16, 2006 The ISL90842 integrates four digitally controlled potentiometers (DCP) configured as variable resistors 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. The DCPs can be used as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing. Pinout ISL90842 (14 LEAD TSSOP) TOP VIEW RH3 RW3 SCL SDA GND RW2 RH2 1 2 3 4 5 6 7 14 RW0 13 RH0 12 VCC 11 A1 10 A0 9 RH1 8 RW1 Features Four variable resistors in one package 2...