Active production digital potentiometer for voltage/current trimming
The AD5116BCPZ10-500R7: It provides a 10kOhm end-to-end resistance with 64 equally spaced taps, giving a step size of roughly 156 Ohms per tap for the linear taper. The wiper position is stored in non-volatile memory, so the setting persists across power cycles — no need for a host microcontroller to re-initialize the wiper at each power-up.
Supply voltage, temperature range, and package constraints
The 35ppm/°C temperature coefficient means the resistance drifts by about 0.35 Ohms per degree Celsius on a 10kOhm element — negligible for most trimming applications but worth budgeting if the set point must hold across a 100°C swing.
Interface and wiper characteristics for system integration
The pushbutton interface lets an operator step the wiper up or down without a microcontroller — the part debounces the button presses internally. Wiper resistance is 70 Ohms typical, which sets a floor on the minimum output voltage when the wiper is at the bottom tap — for a 10kOhm element with a 5V supply, the minimum output is about 35 mV, not zero. The ±8% tolerance on total resistance means a given part may measure anywhere from 9.2kOhm to 10.8kOhm; the step size scales proportionally, so the absolute tap voltage at a given code varies from unit to unit.
Sourcing and compliance posture
This part is ROHS3 compliant, meeting the latest EU restriction-of-hazardous-substances directive for lead-free soldering processes.