ISL22419 - Single Digitally Controlled Potentiometer
MSOP PIN 1 2 3 4 5 6 7 8 SYMBOL SCK SDO SDI CS GND SHDN RW VCC GND DESCRIPTION SPI interface clock input Open Drain Data Output of the SPI serial interface Data Input of the SPI serial interface Chip Select active low input Device ground pin Shutdown active low input “Wper” terminal of DCP Power
OBSOLETE PRODUCT DATASHEET POSSIBLE SUBSTITUTE PRODUCT ISL22419 ISL22416 FN6311 Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, SPI® Rev 1.00 Bus, 128 Taps, Wiper Only September 8, 2009 The ISL22419 integrates a single digitally controlled potentiometer (DCP) and non-volatile memory on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches.
The position of the wiper is
ISL22419 Features
* 128 resistor taps
* SPI serial interface
* Non-volatile storage of wiper position
* Wiper resistance: 70 typical @ 3.3V
* Shutdown mode
* Shutdown current 5µA max
* Power supply: 2.7V to 5.5V
* 50kor 10k total resistance
