DESCRIPTION

· The AD5263 is a quad-channel, 256-position digital potentiometer with a selectable digital interface.

· It replaces mechanical potentiometers with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.

· Each channel offers programmable resistance between the A terminal and the wiper or between the B terminal and the wiper.

· It operates from +4.5 V to +15 V or at ±5 V, with wiper position preset to midscale upon power-on.

· The device is available in a 24-lead TSSOP package and operates over the automotive temperature range of –40°C to +125°C.

FEATURES

· 256-position, 4-channel digital potentiometer with end-to-end resistance options of 20 kΩ, 50 kΩ, and 200 kΩ.

· Pin-selectable SPI or I2C-compatible interface.

· Power-on preset to midscale.

· Rheostat mode temperature coefficient of 30 ppm/°C.

· Voltage divider temperature coefficient of 5 ppm/°C.

· Wide operating temperature range from –40°C to +125°C.

· Supports 10 V to 15 V single supply or ±5 V dual supply.

APPLICATIONS

· Replacement for mechanical potentiometers.

· Optical network adjustment.

· Instrumentation for gain and offset adjustment.

· Stereo channel audio level control.

· Automotive electronics adjustment.

· Programmable power supply and filters.

· Line impedance matching.

· Low resolution DAC/trimmer replacement.

· Base station power amp biasing.

· Sensor calibration.