Analog Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 6 - 9 of 249

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Passage

Consider for CMOS circuit shown, where the gate voltage of the n-MOSFET is increased from zero, while the gate voltage of the p-MOSFET is kept constant at 3V. Assume, that, for both transistors, the magnitude of the threshold voltage is 1 V and the product of trans-conductance parameter is 1mA/

Question 6 (1 of 2 Based on Passage)

Analog Circuits
Multi-Stage, Differential, Feedback, Power and Operational

Appeared in Year: 2009

Question

MCQ▾

For small increase in beyond 1V, which of the following gives the correct description of the region of operation of each MOSFET

Choices

Choice (4)Response

a.

The MOSFETs are in saturation region

b.

n-MOSFETs is in triode and p-MOSFET is in saturation region

c.

The MOSFETs are in triode region

d.

n-MOSFET is in saturation and p-MOSFET is in triode region

Question 7 (2 of 2 Based on Passage)

Analog Circuits
Multi-Stage, Differential, Feedback, Power and Operational

Appeared in Year: 2009

Question

MCQ▾

Estimate the output voltage for [Hints: Use the appropriate current-voltage equation for each MOSFET, based on the answer to Q. 4.16]

Choices

Choice (4)Response

a.

b.

c.

d.

Question 8

Analog Circuits
Simple Op-Amp Circuits

Appeared in Year: 2013

Question

MCQ▾

In the circuit shown below what is the output voltage () if a silicon transistor Q and an ideal op-amp are used?

Choices

Choice (4)Response

a.

+ 15 V

b.

+ 0.7 V

c.

-15 V

d.

-0.7 V

Question 9

Analog Circuits
Multi-Stage, Differential, Feedback, Power and Operational

Appeared in Year: 2007

Question

MCQ▾

In a transconductance amplifier, it is desirable to have

Choices

Choice (4)Response

a.

A large input resistance and a large output resistance

b.

A small input resistance and a large output resistance

c.

A large input resistance and a small output resistance

d.

A small input resistance and a small output resistance

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