Description

The CAT5132 is a high voltage digital POT 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 Digital Potentiometer with 128 Taps

• End-to-end Resistance of 10 kΩ, 50 kΩ or 100 kΩ

• I2C Interface

• Fast Up/Down Wiper Control Mode

• Non-volatile Wiper Setting Storage

• Automatic Wiper Setting Recall at Power−up

• Digital Supply Range (VCC): 2.7 V to 5.5 V

• Analog Supply Range (V+): +8 V to +16 V

• Low Standby Current: 15 μA

• 100 Year Wiper Setting Memory

• Industrial Temperature Range: −40°C to +85°C

• 10-pin MSOP Package

• These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

Applications

• LCD Screen Adjustment

• Volume Control

• Mechanical Potentiometer Replacement

• Gain Adjustment

• Line Impedance Matching

• VCOM Setting Adjustments