General Description

The MAX5432–MAX5435 nonvolatile, linear-taper, digital potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 2-wire serial interface. Each device performs the same function as a discrete potentiometer or a variable resistor and has 32 tap points.

Features

♦ Tiny 3mm x 3mm 8-Pin TDFN and 6-Pin Thin SOT23 Packages

♦ Power-On Recall of Wiper Position from Nonvolatile Memory

♦ 35ppm/°C End-to-End Resistance Temperature Coefficient

♦ 5ppm/°C Ratiometric Temperature Coefficient

♦ 50kΩ/100kΩ Resistor Values

♦ Fast 400kbps I2C-Compatible Serial Interface

♦ 500nA (typ) Static Supply Current

♦ +2.7V to +5.25V Single-Supply Operation

♦ 32 Tap Positions

♦ ±0.15 LSB INL (typ), ±0.15 LSB DNL (typ)

Applications

Mechanical Potentiometer Replacement

Low-Drift Programmable-Gain Amplifiers

Volume Control

Liquid-Crystal Display (LCD) Screen Adjustment