Microchip Technology, Inc. Digital Potentiometers MCP4431T-104E/ST

The MCP4431T-104E/ST is a 7/8-bit volatile quad digital potentiometer featuring an I¬=C interface. It offers a quad resistor network with options for potentiometer or rheostat configurations. The device supports resolutions of 7-bit (128 resistors) and 8-bit (256 resistors), with four available resistance values: 5 kOc, 10 kOc, 50 kOc, and 100 kOc. The wiper resistance is typically low at 75 Oc, and it operates over a wide voltage range of 1.8V to 5.5V, with specified characteristics from 2.7V to 5.5V. The MCP4431T-104E/ST features a low temperature coefficient, with absolute and ratiometric values of 50 ppm and 15 ppm, respectively. It supports high-speed I¬=C communication at frequencies of 100 kHz, 400 kHz, and 3.4 MHz, allowing for efficient read/write operations to the wiper. The device includes a terminal control register for disconnecting the resistor network terminals and has a brown-out reset protection feature at 1.5V. It is designed for extended temperature ranges from -40¬8C to +125¬8C and is available in multiple package types, including TSSOP-20 and QFN-20.