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.

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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.

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3
Q

Gain of a closed-loop op-amp circuit is determined by?

A

The op-amp’s external feedback network.

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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.

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5
Q

Which of the following op-amp circuits is operated open-loop?

A

Comparator

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