MAX5471 - Maxim

MAX5471 Digital Potentiometers

The MAX5471/MAX5472/MAX5474/MAX5475 lineartaper digital potentiometers function as mechanical potentiometers, but replace the mechanics with a simple 3-wire up/down digital interface. These digital potentiometers feature nonvolatile memory (EEPROM) to return the wiper to its previously stored position upon power-up. The MAX5471/MAX5472 are 2-terminal, variab.

Features

o Wiper Position Stored in Nonvolatile Memory and Recalled Upon Power-Up o Tiny SOT23 Package o 35ppm/°C End-to-End Resistance Temperature Coefficient o 5ppm/°C Ratiometric Temperature Coefficient o 32 Tap Positions o Voltage-Divider or Variable-Resistor Potentiometer Configuration o 50kΩ and 100kΩ End-to-End Resistance Values o 1µA (max) Static Supply Current o 2.7V to 5.25V Single-Supply Operation o 200,000 Wiper Store Cycles o 50-Year Wiper Data Retention MAX5471/MAX5472/MAX5474/MAX5475 Applications Mechanical Potentiometer Replacement Liquid-Crystal-Display (LCD) Screen Adjustment Audio .