DATASHEET
X9119 FN8162
Rev 5.00
July 5, 2016 1024 Tap, Low Power, 2-Wire Interface, Digitally Controlled (XDCPв„ў)
Potentiometer
The X9119 integrates a single digitally controlled
potentiometer (XDCPв„ў) on a monolithic CMOS integrated
circuit. Features The digital controlled potentiometer is implemented using
1023 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 2-wire bus interface. The
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and four nonvolatile data registers 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 the
default data register (DR0) to the WCR. 2-Wire serial interface for write, read, and
transfer operations of the potentiometer 1024 resistor taps – 10-bit resolution The XDCP™ can be used as a 3-terminal potentiometer or as a
2-terminal variable resistor in a wide variety of applications
including control, parameter adjustments and signal
processing. Wiper resistance, 40О© typical at VCC = 5V Four nonvolatile data registers Nonvolatile storage of multiple wiper positions Power-on recall, loads saved wiper position on power-up. Standby current <3ВµA maximum VCC: 2.7V to 5.5V operation 100kО© end-to-end resistance 100 yr. data retention Endurance: 100,000 data changes per bit per register 14 Ld TSSOP Low power CMOS Single supply version of the X9118 Pb-free available (RoHS compliant) VCC 2-WIRE
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