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GENERAL DESCRIPTION

The AD5247 provides a compact, 2 mm × 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 k?, 10 k?, 50 k?, and 100 k?), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.

FEATURES

128 positions

End-to-end resistance: 5 k?, 10 k?, 50 k?, 100 k?

Ultracompact, SC70-6 (2 mm × 2.1 mm) package

I2C-compatible interface

Full read/write of wiper register

Power-on preset to midscale

Single-supply 2.7 V to 5.5 V

Rheostat mode temperature coefficient: 45 ppm/°C

Low power, IDD = 0.9 μA at 3.3 V typical

Wide operating temperature range: ?40°C to +125°C

APPLICATIONS

Mechanical potentiometer replacement in new designs

Transducer adjustment of pressure, temperature, position, chemical, and optical sensors

RF amplifier-biasing

LCD brightness and contrast adjustment

Automotive electronics adjustment

Gain control and offset adjustment