One purpose of the comparator in a digital- ramp ADC is to: A) enable the control unit as long as V_axis less than V_a. B) staircase the input analog for comparison with V_ax. C) enable the control unit as long as V_axis greater than V_a. D) generate clock pulses to up- count the binary counter.

Question

Quizplus · Accepted Answer

The comparator in a digital-ramp ADC is used to enable the control unit when the input voltage Vax is less than the reference voltage Va, allowing the ADC to determine when to stop counting.

One Purpose of the Comparator in a Digital- Ramp ADC