The common mode gain is ___________
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Electrical Engineering · all questionsOP Amp
OP Amp
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An amplifier using an opamp with slew rate SR=1v/sec has a gain of 40db.If this amplifier has to faithfully amplify sinusoidal signals from dc to 20KHz without introducing any slew-rate induced distortion, then the input signal level exceed
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Current cannot flow to ground through .
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When a step-input is given to an OP-amp integrator, the output will be
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An OPAMP has a slew rate of 5 V/μS. The largest sine wave output voltage possible at a frequency of 1 MHZ is
[Hint: Slew rate is defined as the max. rate of change of output voltage. Its unit is V/μS.]
[Hint: Slew rate is defined as the max. rate of change of output voltage. Its unit is V/μS.]
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Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF
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The output of a particular OP-amp increases 8V in 12µs. The slew rate is
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The approximate input impedance of the opamp circuit which has Ri = 10k, Rf = 100k, RL = 10k
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For an OP-amp with negative feedback, the output is .
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The common mode voltage gain of a differential amplifier is equal to RC divided by
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In differential-mode, ___________
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Assume that the OP-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be
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The differential gain is
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When a number of stages are connected in parallel, the overall gain is the product of the individual stage gains
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For an ideal OP-amp, which of the following is true?
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The OP-amp can amplify
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In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is
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When a differential amplifier is operated single-ended, ___________
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Negative feedback ___________
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A voltage follower ___________
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