OP-AMP Circuits Archives -

An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is_______________?

An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is_______________?

A. 10 volts
B. 5 volts
C. 5/ volts
D. 5/2 volts

An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is_______________? Read More »

OP-AMP Circuits

A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?

OP-AMP Circuits / admin

A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?

A. 50KHz
B. 100KHz
C. 1000/17KHz
D. 1000/7.07KHz

A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________? Read More »

OP-AMP Circuits

A differential amplifier is invariably used in the i/p stage of all op-amps. This is done basically to provide the op-amps with a very high______________?

OP-AMP Circuits / admin

A differential amplifier is invariably used in the i/p stage of all op-amps. This is done basically to provide the op-amps with a very high______________?

A. CMMR
B. Bandwidth
C. Slew rate
D. Open-loop gain

A differential amplifier is invariably used in the i/p stage of all op-amps. This is done basically to provide the op-amps with a very high______________? Read More »

OP-AMP Circuits

Assume that the op-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be______________?

OP-AMP Circuits / admin

Assume that the op-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be______________?

A. Square wave
B. Triangular wave
C. Parabolic wave
D. Sine wave

Assume that the op-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be______________? Read More »

OP-AMP Circuits

A differential amplifier has a differential gain of 20,000. CMMR=80dB. The common mode gain is given by_______________?

OP-AMP Circuits / admin

A differential amplifier has a differential gain of 20,000. CMMR=80dB. The common mode gain is given by_______________?

A. 2
B. 1
C. 1/2
D. 0

A differential amplifier has a differential gain of 20,000. CMMR=80dB. The common mode gain is given by_______________? Read More »

OP-AMP Circuits

Which of the following amplifier is used in a digital to analog converter?

OP-AMP Circuits / admin

Which of the following amplifier is used in a digital to analog converter?

A. Non inverter
B. Voltage follower
C. Summer
D. Difference amplifier

Which of the following amplifier is used in a digital to analog converter? Read More »

OP-AMP Circuits

When a step-input is given to an op-amp integrator, the output will be______________?

OP-AMP Circuits / admin

When a step-input is given to an op-amp integrator, the output will be______________?

A. A ramp
B. A sinusoidal wave
C. A rectangular wave
D. A triangular wave with dc bias

When a step-input is given to an op-amp integrator, the output will be______________? Read More »

OP-AMP Circuits

For an ideal op-amp, which of the following is true?

OP-AMP Circuits / admin

For an ideal op-amp, which of the following is true?

A. The differential voltage across the input terminals is zero
B. The current into the input terminals is zero
C. The current from output terminal is zero
D. The output resistance is zero

For an ideal op-amp, which of the following is true? Read More »

OP-AMP Circuits

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________________?

OP-AMP Circuits / admin

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________________?

A. 23dB
B. 25dB
C. 46dB
D. 50dB

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________________? Read More »

OP-AMP Circuits

Differential amplifiers are used in______________?

OP-AMP Circuits / admin

Differential amplifiers are used in______________?

A. Instrumentation amplifiers
B. Voltage followers
C. Voltage regulators
D. Buffers

Differential amplifiers are used in______________? Read More »

OP-AMP Circuits