AD5228BUJZ50-RL7

AD5228 is a 32-position manual up/down control potentiometer. It 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 device application. It can increment or decrement the resistance in discrete steps or in autoscan mode. When the PU or PD button is pressed briefly (no longer than 0.6s), the resistance of the device changes by one step. It is used in applications such as mechanical potentiometer and trimmer replacements, LCD backlight, contrast, and brightness controls, digital volume control, portable device-level adjustments, electronic front panel-level controls, programmable power supply.

• End-to-end terminal resistance is 50Kohm, digital control compatible
• Simple manual up/down control, autoscan up/down control with 4 steps per second
• Self-contained, requires only 2 pushbutton tactile switches
• Built-in adaptive debouncer, discrete step-up/step-down control
• Low operating voltage range from 2.7V to 5.5V
• Ultralow power current is 0.4µA typical
• Resistance temperature coefficient is 35ppm/°C typical at (VDD = 3V ± 10%)
• Voltage divider temperature coefficient is 5ppm/°C typical at (VDD = 3V ± 10%)
• Pin-selectable zero-scale/midscale preset
• Operating temperature is -40°C to +105°C, package style is 8-lead TSOT

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