Maxim Integrated MAX5423ETA T

Description
The MAX5422/MAX5423/MAX5424 are nonvolatile, linear-taper, digital potentiometers that replace mechanical potentiometers with a simple 3-wire SPI-compatible digital interface. Each device has 256 tap points and performs the same function as a discrete potentiometer or variable resistor. The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The 3-wire SPI-compatible serial interface allows communication at data rates up to 5MHz, minimizing board space and reducing interconnection complexity.

Features
Wiper position stored in nonvolatile memory (EEPROM) and recalled upon power-up or interface command
3mm x 3mm x 0.8mm TDFN package
35ppm/°C end-to-end resistance temperature coefficient
5ppm/°C ratiometric temperature coefficient
50kΩ, 100kΩ, and 200kΩ resistor values
5MHz SPI-compatible serial interface
500nA (typ) static supply current
Single-supply operation: 2.7V to 5.25V
256 tap positions
±0.5 LSB DNL in voltage-divider mode
±0.5 LSB INL in voltage-divider mode

Applications
Mechanical potentiometer replacement
Low-drift programmable gain amplifiers
Audio volume control
Liquid-crystal display (LCD) contrast control
Low-drift programmable filters