An operational amplifier with a slew rate of 1 V/µs is configured to provide a gain of 40 dB. To ensure distortion-free amplification of sinusoidal signals from DC up to 20 kHz, what is the maximum allowable input voltage amplitude?

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Subject
Analog Electronicselectrical-engineering-mcqs › analog-electronics
Published
19 Dec 2018
Last updated
28 May 2026

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Explanation

Given the slew rate (SR) of 1 V/µs and a gain of 40 dB (which corresponds to a voltage gain of 100), the maximum output voltage amplitude without slew rate distortion is limited by SR and frequency. Calculating the maximum input voltage amplitude to avoid distortion results in 795 mV. Hence, the correct input limit is 795 millivolts.

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