GENERAL DESCRIPTION

The AD5161 provides a compact 3 mm × 4.9 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 kΩ, 10 kΩ, 50 kΩ, 100 kΩ

Compact MSOP-10 (3 mm × 4.9 mm) package

Pin selectable SPI/I2C compatible interface

Extra package address decode pin AD0

Full read/write of wiper register

Power-on preset to midscale

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

SDO output allows multiple device daisy-chaining

Evaluation board available

APPLICATIONS

Mechanical potentiometer replacement in new designs

Transducer adjustment of pressure, temperature, position,

chemical, and optical sensors

RF amplifier biasing

Gain control and offset adjustment