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GENERAL DESCRIPTION

The AD5245 provides a compact 2.9 mm × 3 mm packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.

FEATURES

256-position

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

Compact SOT-23-8 (2.9 mm × 3 mm) package

Fast settling time: tS = 5 μs typ on power-up

Full read/write of wiper register

Power-on preset to midscale

Extra package address decode pin AD0

Computer software replaces μC in factory programming applications

Single supply: 2.7 V to 5.5 V

Low temperature coefficient 45 ppm/°C

Low power: IDD = 8 μA

Wide operating temperature: –40°C to +125°C

Evaluation board available

APPLICATIONS

Mechanical potentiometer replacement in new designs

LCD panel VCOM adjustment

LCD panel brightness and contrast control

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Automotive electronics adjustment

Gain control and offset adjustment