The CAT5140 is a single channel non-volatile 256−tap digitally programmable potentiometer (DPP). This DPP is comprised of a series of equal value resistor elements connected between two

externally accessible end points. The tap points between each resistive element can be selectively connected to the wiper output via internal CMOS switches forming a linear taper electronic potentiometer.

Features

•400 kHz I2C Compatible Interface

•256 Position Linear Taper Potentiometer

•End−to−End Resistance = 50 k/ 100 k

•TCR = 100 ppm/°C (typical)

•Standby Current = 2 A (max)

•Typical Wiper Resistance = 70 @ 3.3 V

•Operating Voltage = 2.5 V to 5.5 V

•6 Registers 8−bit Non−volatile EEPROM

•2,000,000 Data Write Stores

•100 Year Data Retention

•8−Lead MSOP Package

•Pb−free RoHS Compliant: NiPdAu Plating