Exam-style question
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How does increasing the input amplitude affect the slew rate limitation of an op-amp?.
- A.It reduces the slew rate
- B.It increases the slew rate
- C.It has no effect on the slew rate
- D.It changes the bandwidth but not slew rate
Model answer
What a good answer should say
- It has no effect on the slew rate
Explanation
Why this works
Rule: Slew rate is an intrinsic property of the op‑amp, independent of the input signal amplitude. Substitution: amplitude does not appear in the slew‑rate expression.
Working: Changing the input amplitude does not change the maximum dV/dt the op‑amp can produce. Answer: no effect.
Conclusion: Slew rate is fixed for a given op‑amp.
Common mistake
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