Operational Amplifiers 3 - Practice Questions

Question 1

What is the difference voltage if the inputs are an ideal in-phase signal?

Accepted Answer

Question 2

All practical op-amps have input bias currents and voltages that produce output error voltages.

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Question 3

At what input voltage level does the output voltage level become numerically equal to the value of the common-mode gain of the amplifier?

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Question 4

What is the cutoff frequency of an op-amp if the unity-gain frequency is 1.5 MHz and the open-loop gain is 100,000?

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Question 5

An IC unit made using both ________ and ________ transistors is called a ________ circuit.

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Question 6

Closed-loop gain is the gain with negative feedback.

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Question 7

Which of the following circuit conditions affect(s) the output offset voltage of an op-amp?

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Question 8

What is the level of the current through the amplifier input(s) to ground in an op-amp?

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Question 9

What is the voltage gain of the unity follower?

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Question 10

A non-inverting amplifier has a higher input impedance and a lower output impedance than the op-amp itself (without feedback).

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