Below are the answers key for Floyd Self-test in Chapter 12: The Operational Amplifier from the book Electronic Devices Conventional Current Version, 9th edition by Thomas L. Floyd.
1. two inputs and one output
2. Low power
3. answers (a) and (c)
4. one input is grounded and a signal is applied to the other
5. a signal is applied between the two inputs
6. an identical signal appears on both inputs
7. very low
8. answers (b) and (c)
9. zero
10. 100,000
11. 700 nA
12. 0.67 V/μs
13. zero the output error voltage
14. answers (a) and (c)
15. fed back to the inverting input
16. 101
17. increases
18. remains at 25
19. has all of these
20. increases the input impedance and the bandwidth
21. reduces output error voltage
22. extends from 0 Hz to the upper critical frequency
23. the unity-gain frequency
24. the internal RC circuits
25. answers (a) and (b)
26. 5,000,000 Hz
27. 9 kHz
28. 100 kHz
29. stays the same
30. answers (a) and (c)
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