GATE 2023 Analog Circuits Champion Quiz 2

The circuit shown is a MOS cascade amplifier. Calculate the input resistance of transistor Q₂?

+V_DD

For the DC analysis of the common base amplifier shown, consider  under these conditions, the value of mid band voltage gain  is ______

Consider the class emitter follower circuit as shown in figure. All transistors are matched with parameters (V_BE)_ON = 0.7V , (V_CE)_Sat = 0.2V and V_A = ∞. Neglecting base current |V_o max| + |V_o min| is equal to ____ V

[Q₂ & Q₃ should always be in linear mode].

Match list 1(Type of amplifier) with list II (Property) and select the correct answer using the code given below the lists:

List - I

A) Single ended class A

B) Class AB push pull

C) Class B push pull

D) Class C

List - II

1) Medium efficiency with minimum distortion

2) High efficiency with crossover distortion

3) Harmonic generator with highest possible conversion efficiency

4) Poor conversion efficiency with minimum distortion

Find the frequency of oscillation of a Colpitts oscillator with C₁ = 0.004 μF, C₂ = 0.03 μF, and L = 4.0 mH.

In the circuit shown in figure, the output voltage V _o is _______ V

Consider the circuit shown below

The type of amplifier and feedback factor of the amplifier

Given astable multivibrator generate square wave of 10 kHz with 60% duty cycle. It uses a capacitor of 500 pF. Find the value of R₁ & R₂.