AD5228BUJZ10-R2 (ANALOG DEVICES)

The AD5228BUJZ10-R2 is a manual up/down control Digital Potentiometer emulating mechanical potentiometer operation. It's simple up/down control interface allows manual control with just two external pushbutton tactile switches. The AD5228 is designed with a built-in adaptive debouncer that ignores invalid bounces due to contact bounce commonly found in mechanical switches. The debouncer is adaptive, accommodating a variety of pushbutton tactile switches that generally have less than 10ms of bounce time during contact closures. When choosing the switch, the user should consult the timing specification of the switch to ensure its suitability in an AD5228 application. The AD5228's simple interface, small footprint and very low cost enable it to replace mechanical potentiometers and trimmers with typically 3x improved resolution, solid-state reliability and faster adjustment, resulting in considerable cost saving in end users systems.