Op Amps Flashcards
1
Q
What is the main advantage of using an op-amp audio filter over a passive LC audio filter?
A
Op-amps exhibit gain rather than insertion loss.
2
Q
What are the characteristics of an inverting operational amplifier (op-amp) circuit?
A
It has input and output signals 180 degrees out of phase.
3
Q
Gain of a closed-loop op-amp circuit is determined by?
A
The op-amp’s external feedback network.
4
Q
Where is the external feedback network connected to control the gain of a closed-loop op-amp circuit?
A
From output to the inverting input.
5
Q
Which of the following op-amp circuits is operated open-loop?
A
Comparator
