AD5228BUJZ100-RL7

AD5228BUJZ100-RL7 is a 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 pushbutton tactile switches. 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 a device application. 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, and programmable power supply.

• 32-position digital potentiometer, simple manual up/down control, RAB is 100Kohm
• 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
• Digital control compatible, low operating voltage range from 2.7V to 5.5V
• Voltage divider temperature coefficient is 5ppm/°C typical at (VDD = 3V ±10% or 5V ±10%)
• Resistance temperature coefficient is 35ppm/°C typical at (VDD = 3V ±10% or 5V ±10%)
• 50KHz typical -3dB bandwidth at (RAB = 100Kohm, midscale, VDD = 3V ±10% or 5V ±10%)
• Resistor noise voltage is 14nV/√Hz typical at (RWB = 5Kohm, f = 1KHz, VDD = 3V ±10% or 5V ±10%)
• Resistor differential nonlinearity is ±0.05LSB typical at (RWB, A terminal = no connect)
• Operating temperature range from -40°C to +105°C, 8-lead TSOT package

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