GENERAL DESCRIPTION

The AD5293 is a single-channel, 1024-position digital potentiometer with a <1% end-to-end resistor tolerance error. The AD5293 performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. This device is capable of operating at high voltages and supporting both dual-supply operation at ±10.5 V to ±15 V and single-supply operation at 21 V to 30 V.

FEATURES

Single-channel, 1024-position resolution

20 kΩ, 50 kΩ, and 100 kΩ nominal resistance

Calibrated 1% nominal resistor tolerance (resistor performance mode)

Rheostat mode temperature coefficient: 35 ppm/°C

Voltage divider temperature coefficient: 5 ppm/°C

Single-supply operation: 9 V to 33 V

Dual-supply operation: ±9 V to ±16.5 V

SPI-compatible serial interface

Wiper setting readback

APPLICATIONS

Mechanical potentiometer replacement

Instrumentation: gain and offset adjustment

Programmable voltage-to-current conversion

Programmable filters, delays, and time constants

Programmable power supply

Low resolution DAC replacements

Sensor calibration