A. 4
B. 3
C. 2
D. 1
Related Mcqs:
- How many op-amps are required to implement this equationop-amps?
A. 2
B. 3
C. 4
D. 1 - 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 - If ground is applied to the (+) terminal of an inverting op-amp, the (–) terminal will_____________?
A. Not need an input resistor
B. Be virtual ground
C. Have high reverse current
D. Not invert the signal - The ideal OP-AMP has the following characteristics
A. Ri=∞ ,A=∞ ,R0=0
B. Ri=0 ,A=∞ ,R0=0
C. Ri=∞ ,A=∞ ,R0=∞
D. Ri=0 ,A=∞ ,R0=∞ - An ideal OP-AMP is an ideal__________?
A. Current controlled Current source
B. Current controlled Voltage source
C. Voltage controlled Voltage source
D. Voltage controlled Current source - 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_____________?
A. 795mV
B. 395mV
C. 795mV
D. 39.5mV - The output voltage Vo of the above circuit is____________?
A. -6V
B. -5V
C. -1.2V
D. -0.2V - 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 - Which of the following amplifier is used in a digital to analog converter?
A. Non inverter
B. Voltage follower
C. Summer
D. Difference amplifier - 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
