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GATE 2019: Analog Circuits Quiz 3
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Question 1
Oxide thickness of MOS capacitor is 55nm. Then what will be the capacitance?
(Relative permittivity of oxide, ∈= 3.9)
(Relative permittivity of oxide, ∈= 3.9)
Question 2
Find the lower cut off frequency response effected due to the input coupling capacitor in the common source JFET Amp circuit?
Question 3
The FET in the circuit has rds = 50KΩ and gm = 5 mS. Determine the value of voltage gain. .
Question 4
The ac schematic of an NMOS common-source stage is shown in the figure below, where part of the biasing circuits has been omitted for simplicity. For the n -channel MOSFET M. the transconductance gm = 1 mA/V. and body effect and channel length modulation effect are to be neglected. The lower cutoff frequency in Hz of the circuit is approximately at
Question 5
Find voltage gain Vin/Vo (Given β=100)
Question 6
The output resistance Ro of the circuit
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