MAX5423 - Maxim Integrated Products

MAX5423 Digital Potentiometers

The MAX5422/MAX5423/MAX5424 nonvolatile, lineartaper, digital potentiometers perform the function of a mechanical potentiometer, but replace the mechanics with a simple 3-wire SPI™-compatible digital interface. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points. The devices feature an internal, nonv.

Features

o Wiper Position Stored in Nonvolatile Memory (EEPROM) and Recalled Upon Power-Up or Interface Command o 3mm x 3mm x 0.8mm TDFN Package o 35ppm/°C End-to-End Resistance Temperature Coefficient o 5ppm/°C Ratiometric Temperature Coefficient o 50kΩ, 100kΩ, and 200kΩ Resistor Values o 5MHz SPI-Compatible Serial Interface o 500nA (typ) Static Supply Current o Single-Supply Operation: +2.7V to +5.25V o 256 Tap Positions o ±0.5 LSB DNL in Voltage-Divider Mode o ±0.5 LSB INL in Voltage-Divider Mode SPI is a trademark of Motorola, Inc. MAX5422/MAX5423/MAX5424 Applications Mechanical Potentiometer Rep.