Comparator
4 practice questionsElectronicsStep-by-step solutions
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1
An op-amp comparator compares two:
A.Resistances
B.Voltages
C.Currents only
D.Frequencies
2
An op-amp used as a comparator produces an output that:
A.Is proportional to the input
B.Swings to one supply rail or the other depending on which input is larger
C.Always stays at zero
D.Integrates the input
3
An op-amp comparator's output switches based on whether:
A.The non-inverting input exceeds the inverting input
B.Both inputs are equal
C.The supply voltage drops
D.The feedback resistor opens
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