The AD5263BRUZ20 is a quad-channel Digital Potentiometer with pin-selectable SPI/I2C interfaces and 256-positions. This device performs the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability and superior low temperature coefficient performance. Each channel of the AD5263 offers a completely programmable value of resistance between the A terminal and the wiper or between the B terminal and the wiper. Another key feature of this part is the ability to operate from +4.5 to +15V or at ±5V. Wiper position programming presets to midscale upon power-on. Once powered, the VR wiper position is programmed by either the 3-wire SPI or 2-wire I2C-compatible interface. In the I2C mode, additional programmable logic outputs enable users to drive digital loads, logic gates and analogue switches in their systems.