19-1848; Rev 0; 10/00
256-Tap SOT-PoT, Low-Drift Digital Potentiometers in SOT23
General Description
The MAX5400/MAX5401 digital potentiometers offer 256-tap SOT-PoT™ digitally controlled variable resistors in tiny 8-pin SOT23 packages.
Each device functions as a mechanical potentiometer, consisting of a fixed resistor string with a digitally controlled wiper contact.
They operate from +2.
7V to +5.
5V single-supply
voltages and use an ultra-low supply current of 0.
1µA.
These devices also provide glitchless switching between resistor taps, as well as a convenient poweron reset that sets the wiper to the midscale position at power-up.
A low 5ppm/°C ratiometric temperature coefficient makes it ...