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Courses » Integrated Circuits, MOSFETs, OP-Amps and their Applications
Unit 5 -
Operational Amplifiers
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Course outline
Introduction to IC Fabrication Technology
Introduction to IC Fabrication Technology
Introduction to Fabrication Technolgy
Introduction to Fabrication Technolgy
Operational Amplifiers
MOSFETs Characteristics and
Applications (Current Mirrors) Introduction to Operational Amplifiers Operational Amplifier Characteristics Operational Amplifier Characteristics Contd…
Characteristics of an Op-Amp Contd…
Quiz : Week 5 Assignment 5 Assignment 5 - Solutions
Due on 2018-02-28, 23:59 IST.
1) 1 point
2) 1 point
3) 1 point
Week 5 Assignment 5
The due date for submitting this assignment has passed.
Submitted assignment
According to the principle of current mirror, if gate-source potentials of two identical MOS transistors are equal, then the drain currents should be _______
None Equal Both Different
No, the answer is incorrect.
Score: 0
Accepted Answers:
Equal
An ideal op-amp has ________
Infinite input resistance Infinite differential voltage gain Zero output resistance All of the above No, the answer is incorrect.
Score: 0
Accepted Answers:
All of the above
For an op-amp having a slew rate of 6V/ µS, calculate an undistorted peak-peak output voltage for an input sine wave of 2 MHz frequency.
1.5 V 3 V 0.47 V 0.95V
No, the answer is incorrect.
Score: 0
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Op-Amp Applications
Understanding Op-Amp Data Sheet
Experiments on Op-Amp
Experiments on Op-Amp Configarations
Experiments on Op-amp Applications
Experiments:
Op-amp as Filters
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5) 1 point
6) 1 point
7) 1 point
30 respectively. If an op-amp with an open-loop voltage gain of 300,000 is substituted in the arrangement, the closed-loop gain ……..
Doubles Remains at 30 Increases slightly Drops to 15
No, the answer is incorrect.
Score: 0
Accepted Answers:
Remains at 30
Which among the following gate can be implemented by the circuit shown
NOR NAND NOT AND
No, the answer is incorrect.
Score: 0
Accepted Answers:
NOR
Find Vo for the circuit shown
-8.9 V 11.2 V -11.2 V 8.9 V No, the answer is incorrect.
Score: 0
Accepted Answers:
-11.2 V
Consider R1= 10 kΩ , Rf = 100 kΩ, V1=1.5V and V2= 2.5 V. Compute Vo
8) 1 point -15 V
-20 V 10 V 25 V
No, the answer is incorrect.
Score: 0
Accepted Answers:
10 V
Consider an op-amp with a gain of -25 using resistors not smaller than 1 kΩ
No, the answer is incorrect.
Score: 0
Accepted Answers:
9) 1 point
10) 1 point
11) 1 point
12) 1 point
A differential amplifier shown below has a differential gain of 100 and a CMRR of 40 dB. If V1 = 0.6 V and V2 = 0.4 V calculate the output voltage.
20.5 V 20 V 15 V 10.25 V
No, the answer is incorrect.
Score: 0
Accepted Answers:
20.5 V
M1, M2 and M3 in the circuit shown below are matched N-channel enhancement mode MOSFETs operating in saturation mode, forward voltage drop of each diode is 0.7 V, reverse leakage current of each diode is negligible and the op-amp is ideal. The current Is in the circuit is
1 mA 2 mA -1 mA 0.5 mA No, the answer is incorrect.
Score: 0
Accepted Answers:
0.5 mA
For the circuit shown, find the CMRR in dB
37.23 Zero 59.17 66.2
No, the answer is incorrect.
Score: 0
Accepted Answers:
59.17
What should be the value of R1 in the circuit shown to be able to produce a voltage gain of 10
2 kΩ
13) 1 point
14) 1 point
15) 1 point
1 kΩ
No, the answer is incorrect.
Score: 0
Accepted Answers:
2 kΩ
What is the relation between Iref and Iy?
Iy = 0 Iref = Iy Iref > Iy Iref < Iy
No, the answer is incorrect.
Score: 0
Accepted Answers:
Iy = 0
A multistage amplifier is as shown in figure. Find out the values of Iref and Ix if Iy
= 1 mA
Iref = 1.5 mA and Ix = 1.5 mA Iref = 1 mA and Ix = 1.5 mA Iref = 0.5 mA and Ix = 0.5 mA Iref = 0.5 mA and Ix = 1.5 mA No, the answer is incorrect.
Score: 0
Accepted Answers:
Iref = 0.5 mA and Ix = 1.5 mA
Compute (W/L)1 for the circuit shown, if the output Io is to be 6 mA. Consider Iref = 1 mA and (W/L)2 = 12.
2 72 0.5 24
No, the answer is incorrect.
Score: 0
Accepted Answers:
2
