DATASHEET
X95840 FN8213
Rev 2.00
July 5, 2006 Quad Digital Controlled Potentiometers (XDCPв„ў) Low Noise/Low Power/I2C
Bus/256 Taps
The X95840 integrates four digitally controlled
potentiometers (XDCP) 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
volatile Wiper Register (WR) and a non-volatile Initial Value
Register (IVR), that can be directly written to and read by the
user. The contents of the WR controls the position of the
wiper. At power up the device recalls the contents of the four
DCP’s IVR to the corresponding WRs. Features Four Potentiometers in One Package 256 Resistor Taps-0.4% Resolution I2C Serial Interface
-Three address pins, up to eight devices/bus Wiper Resistance: 70пЃ— Typical @ 3.3V Non-Volatile Storage of Wiper Position Standby Current < 5ВµA Max Power Supply: 2.7V to 5.5V The DCPs can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing. 50kпЃ—, 10kпЃ— Total Resistance Ordering Information 20 Ld TSSOP PART NUMBER PART
MARKING X95840WV20I-2.7* X95840WV G Pb-Free Plus Anneal Available (RoHS Compliant) RESISTANCE
OPTION PACKAGE 10kпЃ— 20 Ld TSSOP X95840WV20IZ-2.7* X95840WV Z G …