The MAX5402 µPoT digital potentiometer is a 256-tap variable resistor with 10kΩ total resistance in a tiny 8-pin µMAX® package. This device functions as a mechanical potentiometer, consisting of a fixed resistor string with a digitally controlled wiper contact. It operates from +2.7V to +5.5V single-supply voltages and uses an ultra-low 0.1µA supply current. This device also provides glitchless switching between resistor taps, as well as a convenient power-on reset (POR) that sets the wiper to the midscale position at power-up. A low 5ppm/°C ratiometric temperature coefficient makes it ideal for applications requiring low drift. The MAX5402 serves well in applications requiring digitally controlled resistors, including adjustable voltage references and programmable gain amplifiers (PGAs). A nominal end-to-end resistor temperature coefficient of 35ppm/°C makes this part suitable for use as a variable resistor in applications such as low-tempco adjustable gain and other circuit configurations. This device is guaranteed over the extended industrial temperature range (-40°C to +85°C). Applications * Adjustable Voltage Reference * Low-Drift Programmable-Gain Amplifiers * Mechanical Potentiometer Replacements * Small Footprint, 8-Pin µMAX Package * Ultra-Low 100nA Supply Current * +2.7V to +5.5V Single-Supply Operation * 256 Tap Positions * Low Ratiometric Temperature Coefficient 5ppm/°C * Low End-to-End Resistor Temperature Coefficient 35ppm/°C * Power-On Reset: Wiper Goes to Midscale (Position 128) * Glitchless Switching Between the Resistor Taps * 3-Wire SPI™-Interface Compatible * 10kΩ Resistor Value https://elecena.pl/product/22328843/256-tap-pot-low-drift-digital-potentiometer 2022-12-28 https://elecena.pl/product/22328843/256-tap-pot-low-drift-digital-potentiometer 2025-01-17