Questions on the voltage comparator

The signal input to an op amp comparator goes to the of the op amp. The inverting input is connected to This is usually produced by It could also be produced by When the input signal is higher than the reference voltage, the Only a small difference between input signal and reference is needed because the of the op amp is

Unlike an op amp, a comparator IC usually has output stage. In this case there must be a resistor connecting the to the


Return to Index.