X95840

Features:

• Four Potentiometers in One Package
• 256 Resistor Taps-0.4% Resolution
• 2-Wire Serial Interface
• Wiper Resistance: 70 Typical @ 3.3V
• Non-Volatile Storage of Wiper Position
• Standby Current < 5A Max
• Power Supply: 2.7V to 5.5V
• 50k, 10k Total Resistance
• High Reliability
- Endurance: 150,000 data changes per bit per register
- Register data retention: 50 years @ T 75°C
• 20 Ld TSSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)




Pinout






Specifications

Storage temperature . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Voltage at any digital interface pin
with respect to GND . . . . . . . . . . . . . . . . . . . . . . -0.3V to V_CC+0.3
V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Voltage at any DCP pin with respect to GND. . . . . . . . -0.3V to V_CC
Lead temperature (soldering, 10s). . . . . . . . . . . . . . . . . . . .300°C
I_W (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ±6mA




Description

The X95840 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. The X95840 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 X95840 recalls the contents of the four DCPs IVR to the corresponding WRs. 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.