AD5228BUJZ10-RL7

AD5228 is a latest 32-step-up/step-down control digital potentiometer emulating mechanical potentiometer operation. Its simple up/down control interface allows manual control with just two external pushbuttons tactile switches. This is designed with a built-in adaptive debouncer that ignores invalid bounces due to contact bounces 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. Application includes mechanical potentiometer and trimmer replacements, LCD backlight, contrast, and brightness controls, digital volume control, digital volume control, portable device-level adjustments, electronic front panel-level controls, and programmable power supply.

• 32-position digital potentiometer
• Simple manual up/down control
• Self-contained, requires only 2 pushbutton tactile switches
• Built-in adaptive debouncer
• Discrete step-up/step-down control
• Autoscan up/down control with 4 steps per second
• Pin-selectable zero-scale/midscale preset, low potentiometer mode tempco, 5ppm/°C
• Low rheostat mode tempco, 35ppm/°C, digital control compatible
• 8-lead TSOT package
• Temperature rating range from -40°C to +105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party