The MAX5402 is a 256-tap digital potentiometer with low drift, low power, and a 3-wire SPI interface.

It is ideal for applications requiring digitally controlled resistors, such as adjustable voltage references, programmable gain amplifiers, and mechanical potentiometer replacements.

The MAX5402 operates from a +2.7V to +5.5V single supply and has an ultra-low supply current of 100nA. It also features a power-on reset that sets the wiper to the midscale position at power-up.