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MAX5529：64-Tap, One-Time Programmable, Linear-Taper Digital Potentiometers

The MAX5527/MAX5528/MAX5529 linear-taper digital potentiometers perform the same function as mechanical potentiometers, replacing the mechanics with a simple 2-wire up/down digital interface. These digital potentiometers provide an optional one-time programmable feature that sets the power-on reset position of the wiper. Once the wiper position is programmed, the 2-wire interface can be disabled to prevent unwanted adjustment. The MAX5527/MAX5528/MAX5529 provide an end-to-end resistance of 100kΩ, 50kΩ, and 10kΩ, respectively. The devices feature low temperature coefficients of 35ppm/°C end-to-end and 5ppm/°C ratiometric. All devices offer 64 wiper positions and operate from a single +2.7V to +5.5V supply. An ultra-low, 0.25µA (typ) standby supply current saves power in battery-operated applications. The MAX5527/MAX5528/MAX5529 are available in 3mm x 3mm, 8-pin TDFN and 5mm x 3mm, 8-pin µMAX® packages. Each device is guaranteed over the -40°C to +105°C temperature range.

Key Features Wiper Position Stored After One-Time Fuse Programming 64 Tap Positions Wiper Position Programmed Through Simple 2-Wire Up/Down Interface 35ppm/°C End-to-End Temperature Coefficient 5ppm/°C Ratiometric Temperature Coefficient Ultra-Low 1.5µA (max) Static Supply Current +2.7V to +5.5V Single-Supply Operation 10kΩ, 50kΩ, and 100kΩ End-to-End Resistances Tiny, 3mm x 3mm, 8-Pin TDFN and 5mm x 3mm, 8-Pin µMAX Packages EV Kit Available

MAX5527, MAX5528, MAX5529: Pin Configurations Applications/Uses Mechanical Potentiometer Replacements Products Using One-Time Factory Calibration

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5527EVKIT

Ordering Information