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MAX5474：32-Tap, Nonvolatile, Linear-Taper Digital Potentiometers in SOT23

Industry's First 32-Tap, Nonvolatile Digital Potentiometers in a SOT23 have Ultra-Low Temperature Drift

The MAX5471/MAX5472/MAX5474/MAX5475 linear-taper 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, variable resistors in 6-pin SOT23 packages. The MAX5474/MAX5475 are 3-terminal potentiometers in 8-pin SOT23 packages. The MAX5471/MAX5474 have an end-to-end resistance of 50kΩ, and the MAX5472/MAX5475 have an end-to-end resistance of 100kΩ. All of these devices have 32 wiper positions, a low ratiometric temperature coefficient (5ppm/°C), and all operate from a single +2.7V to +5.25V supply. Each device is guaranteed over the extended -40°C to +85°C temperature range.

Key Features Wiper Position Stored in Nonvolatile Memory and Recalled Upon Power-Up Tiny SOT23 Package 35ppm/°C End-to-End Resistance Temperature Coefficient 5ppm/°C Ratiometric Temperature Coefficient 32 Tap Positions Voltage-Divider or Variable-Resistor Potentiometer Configuration 50kΩ and 100kΩ End-to-End Resistance Values 1µA (max) Static Supply Current 2.7V to 5.25V Single-Supply Operation 200,000 Wiper Store Cycles 50-Year Wiper Data Retention

MAX5471, MAX5472, MAX5474, MAX5475: Pin Configuration Applications/Uses Audio Volume Control Liquid-Crystal Display (LCD) Screen Adjustment Mechanical Potentiometer Replacements Programmable Filters

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5474EVKIT

Quality and Environmental Data

• MAX5474.pdf

Ordering Information