ISL23418 - Low Voltage Digitally Controlled Potentiometer
MSOP 1 µTQFN 10 21 32 43 54 65 76 87 98 10 9 SYMBOL DESCRIPTION VLOGIC SPI bus/logic supply; range 1.2V to 5.5V SCK Logic pin: serial bus clock input SDO Logic pin: serial bus data output (configurable) SDI Logic pin: serial bus data input CS Logic pin: active low Chip Select RL DCP “lo
DATASHEET ISL23418 Single, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™) FN7901 Rev 1.00 September 24, 2015 The ISL23418 is a volatile, low voltage, low noise, low power, SPI™ bus, 128 taps, single digitally controlled potentiometer (DCP), which integrates DCP core, wiper switches, and control logic 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 wipe
ISL23418 Features
* 128 Resistor Taps
* SPI Serial Interface - No Additional Level Translator for Low Bus Supply - Daisy Chaining of Multiple DCP
* Wiper Resistance: 70 Typical @ VCC = 3.3V
* Shutdown Mode: Forces DCP into End-to-end Open Circuit; RW Shorted to RL Internally
