Compact +30 V / ±15 V, 256-Position Digital Potentiometer

The AD5290 is one of the few high voltage, high performance, and compact digital potentiometers1 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability.

With digital rather than manual control, the AD5290 provides layout flexibility and allows closed-loop dynamic controllability.

The AD5290 is available in MSOP-10 package and has 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the –40°C to +125°C extended automotive temperature range.

Applications

* High voltage DAC

* Programmable power supply

* Programmable gain and offset adjustment

* Programmable filters and delays

* Actuator control

* Audio volume control

* Mechanical potentiometer replacement

1 The RDAC segmentation is protected by U.S. Patent Number 5,495,245.

* 256 position

* 10 kΩ, 50 kΩ, 100 kΩ

* +20 V to +30 V single-supply operation

* ±10 V to ±15 V dual-supply operation

* 3-wire SPI®-compatible serial interface

* Low temperature coefficient 35 ppm/°C typical