General Description

The MAX5128 nonvolatile, single, linear-taper, digital potentiometer performs the function of a mechanical potentiometer, but replaces the mechanics with a simple 2-wire digital interface. The MAX5128 performs the same function as a discrete potentiometer or variable resistor and features 128 taps and 22kΩ end-to-end resistance. The MAX5128 also features an ultra-small, 2mm x 2mm µDFN package and low 0.5µA (typ) standby supply current, making this device ideal for portable applications.

Features

♦ Ultra-Small, 2mm x 2mm, 8-Pin µDFN Package

♦ Power-On Recall of Wiper Position from Nonvolatile Memory

♦ 22kΩ End-to-End Resistance

♦ 128 Tap Positions

♦ 5ppm/°C Ratiometric Temperature Coefficient

♦ 1.5µA (max) Standby Supply Current

♦ +2.7V to +5.25V Single Supply Operation

♦ 80,000 Wiper Store Cycles

♦ 50-Year Wiper Data Retention

Applications

    VCOM Adjustment for LCD Panels

    Backlight Adjustment

    LED Bias Adjustment

    Power-Supply Modules

    Fiber-Module Bias Setting

    Bias Setting for Radios

    Portable Consumer Electronics