ANALOG DEVICES MAX5418PETA+T

MAX5418 is a 256-tap, non-volatile, I²C-interface, digital potentiometer performs the function of a mechanical potentiometer by replacing the mechanics with a simple 2-wire digital interface, allowing communication with multiple devices. This device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points. The devices feature an internal, non-volatile EEPROM used to store the wiper position for initialization during power-up. The fast-mode I²C-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gain amplifier circuit configurations. Applications include mechanical potentiometer replacement, low-drift programmable-gain amplifiers, volume control, liquid-crystal display (LCD) contrast control.