An operational amplifier with a slew rate of 1 V/µs is configured to provide a gain of 40 dB. To ensure the amplifier can accurately amplify sinusoidal inputs from DC up to 20 kHz without distortion caused by slew rate limitations, what is the maximum allowable input signal amplitude?

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Subject
OP-AMP Circuitselectrical-engineering-mcqs › op-amp-circuits
Published
17 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. Using the formula SR = 2πf V_peak, the maximum input amplitude is calculated to be 795 mV to avoid distortion up to 20 kHz.

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