DESCRIPTION
The CAT5132 is a high voltage Digitally Programmable Potentiometer (DPP) with non-volatile wiper setting memory, operating like a mechanical potentiometer. The tap points between the 127 equal resistive elements are connected to the wiper output via CMOS switches. The switches are controlled by a 7-bit Wiper Control Register (WCR). The wiper setting can be stored in a 7-bit non-volatile Data Register (DR). The WCR is accessed via the I2C serial bus.

FEATURES
■ Single linear DPP with 128 taps
■ End-to-end resistance of 10kΩ, 50kΩ or 100kΩ
■ I2C interface
■ Fast Up/Down wiper control mode
■ Non-volatile wiper setting storage
■ Automatic wiper setting recall at power-up
■ Digital Supply range (VCC): 2.7V to 5.5V
■ Analog Supply range (V+): +8V to +16V
■ Low Standby Current: 15µA
■ 100 Year wiper setting memory
■ Industrial Temperature range: -40°C to +85°C
■ RoHS-compliant 10-pin MSOP package

APPLICATIONS
■ LCD screen adjustment
■ Volume control
■ Mechanical potentiometer replacement
■ Gain adjustment
■ Line impedance matching
■ VCOM setting adjustments