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EE AND ECE - Op-Amp (Operational Amplifier) MCQs
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EE AND ECE - Op-Amp (Operational Amplifier) MCQs
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25 Questions

1. With zero volts on both inputs, an OP-amp ideally should have an output ………..
2. For an Op-amp with negative feedback, the output is …….
3. If ADM = 3500 and ACM = 0.35, the CMRR is ……….
4. If the feedback resistor in Q15 (above question) is open, the voltage gain …….
5. The differential voltage gain of a differential amplifier is equal to RC divided by …….
6. The use of negative feedback ………
7. The Op-amp can amplify
8. A voltage follower ……….
9. The common-mode voltage gain of a differential amplifier is equal to RCdivided by ……..
10. The output of a particular Op-amp increases 8V in 12μs. The slew rate is …….
11. Of the values listed, the most realistic value for open-loop voltage gain of an OP-amp is ……
12. The input stage of an Op-amp is usually a ……….
13. A differential amplifier ……………..
14. A certain noninverting amplifier has Ri of 1 kΩ and Rf of 100 kΩ. The closed-loop voltage gain is ………
15. Current cannot flow to ground through …….
16. When a differential amplifier is operated single-ended, …………
17. Negative feedback ………..
18. In differential-mode, …………….
19. A certain inverting amplifier has a closed-loop voltage gain of 25. The Op-amp has an open-loop voltage gain of 100,000. If anOp-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain ……..
20. A common-mode signal is applied to ……….
21. The common-mode voltage gain is ………
22. The common-mode gain is ………..
23. The node voltage at the top of the til resistor is closes to ……….
24. The differential gain is ………
25. The input offset current equals the ……….

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