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Electronics - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
16.
How many leads does the TO-5 metal can package of an operational amplifier have?
8, 10, or 12
6, 8, or 10
8 or 14
8 or 16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
If a noninverting amplifier has an RIN of 1000 ohms and an RFB of 2.5 kilohms, what is the RIN voltage when 1.42 mV is applied to the correct input?
3.5 mV
ground
1.42 mV
0.56 mV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Input impedance [Zin(I)] of an inverting amplifier is approximately equal to:
Ri
Rf + Ri
∞
Rf – Ri
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The closed-loop voltage gain of an inverting amplifier equals:
the ratio of the input resistance to the feedback resistance
the open-loop voltage gain
the feedback resistance divided by the input resistance
the input resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
What is the cutoff frequency of this low-pass filter?

4.8 kHz
3.8 kHz
2.8 kHz
1.8 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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