Determine the output level (maximum positive or maximum negative) for each comparator in Figure 4-52.
The Attempt at a Solution
I am new to comparators but I thought that since all of these op-amps are open-loop configurations, the output voltages would be pinged at ±Vmax where ±Vmax is the maximum output voltage of the op-amp according to its datasheet.
So, for (a), my answer was:
However, I was told "you don't need the open-loop gain of the amplifier. You need to compare the voltages in the noninverting input to the voltages in the inverting input, then decide the output of the comparator."
Still... I know that even a small difference between the two inputs of an op-amp without feedback can drive the device into saturation and thus the output voltage to ±Vmax.
How do I rectify what I believe to be true about comparators with what I was told by my professor?