Intersil X9401WV24IZT1

Description
The X9401 integrates four digitally controlled potentiometers (XDCPs) on a monolithic CMOS integrated microcircuit. The XDCP is implemented using 64 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers (DRO:DR3) that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array through the switches. Power-up recalls the contents of DRO to the WCR.

Features
Quad 4 Separate Pots, 64 Taps/Pot
Nonvolatile Storage of Wiper Position
Four Nonvolatile Data Registers for Each Pot
16-bytes of EEPROM Memory
SPI Serial Interface
RTOTAL 10k
Wiper Resistance 1500 Typical
Standby Current <3μA (Total Package)
Operating Current <700µA max.
Vcc -2.7V to 5V
24 Ld SOIC and 24 Ld TSSOP Package
100 year Data Retention
Pb-Free Available (RoHS Compliant)

Applications
The XDCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.