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In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.
Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit is
- a)
- b)
- c)
- d)
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
In the circuit shown in the figure, the transistors M1 and M2 are oper...
Given circuit is shown below,
Method 1 :
Channel length modulation coefficient λ≠ 0 , it means internal resistance of MOSFET M 1 and M 2 are not
zero.
The AC equivalent model of given circuit is shown below,
Applying KCL at node N,
So, put equation (ii) and (iii) into equation (i),
Hence, the correct option is (D).
Method 2 :
Given MOSFET arrangement is shown below,
Channel length modulation coefficient λ≠ 0 , it means internal resistance of MOSFET M1 and M2 are not zero i.e., r01 ≠ 0 , r02 ≠ 0 .
AC equivalent circuit :
(i) All capacitors are short circuited.
(ii) All DC voltage sources replaced by ground.
Here, drain ( D1) and gate (G1) of MOSFET (M1) are grounded, so it can be drawn as,
When drain and gate of MOSFET M1 are shorted to each other then it can be replaced by resistance of value 
as shown below,
as shown below,
So, given circuit becomes as,
Above MOS circuit can redraw as,
Here, 
work as load for MOSFET (M2) , so small signal voltage gain of MOSFET (M2) is
work as load for MOSFET (M2) , so small signal voltage gain of MOSFET (M2) is
Hence, the correct option is (D).
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Community Answer
In the circuit shown in the figure, the transistors M1 and M2 are oper...
Given circuit is shown below,
Method 1 :
Channel length modulation coefficient λ≠ 0 , it means internal resistance of MOSFET M 1 and M 2 are not
zero.
The AC equivalent model of given circuit is shown below,
Applying KCL at node N,
So, put equation (ii) and (iii) into equation (i),
Hence, the correct option is (D).
Method 2 :
Given MOSFET arrangement is shown below,
Channel length modulation coefficient λ≠ 0 , it means internal resistance of MOSFET M1 and M2 are not zero i.e., r01 ≠ 0 , r02 ≠ 0 .
AC equivalent circuit :
(i) All capacitors are short circuited.
(ii) All DC voltage sources replaced by ground.
Here, drain ( D1) and gate (G1) of MOSFET (M1) are grounded, so it can be drawn as,
When drain and gate of MOSFET M1 are shorted to each other then it can be replaced by resistance of value as shown below,
as shown below,So, given circuit becomes as,
Above MOS circuit can redraw as,
Here, work as load for MOSFET (M2) , so small signal voltage gain of MOSFET (M2) is
work as load for MOSFET (M2) , so small signal voltage gain of MOSFET (M2) isHence, the correct option is (D).
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In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer?
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In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer?.
In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice In the circuit shown in the figure, the transistors M1 and M2 are operating in saturation. The channel length modulation coefficients of both the transistors are non-zero. The transconductance of the MOSFETs M 1 and M 2 are gm1 and gm2 , respectively, and the internal resistance of the MOSFETs M1 and M 2 are r01 and r02 , respectively.Ignoring the body effect, the ac small signal voltage gain ( ∂Vout /∂Vin) of the circuit isa)b)c)d)Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
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