GATE 2023 Analog Circuits Quiz 53

Consider the small signal parameter and . Find the input resistance (R_in).

Calculate the short circuit transconductance

for the given circuit.

Two perfectly matched ‘Si’ transistors are connected as shown in figure. Assume value of the transistors to be 200 & V_BE = =0.7V then the value of I is _______ mA (Up to two decimal)

The transistor in the circuit shown biased at 2mA of current. The approximation small signal voltage gain is_____________.

(assume V_T = 26mV)

Consider the small signal parameters g_m and r_ϖ. if i_e = i_c , then find the voltage gain

The common emitter circuit, with bypass capacitor removed, is shown in Fig. The h_fe = 75, h_oe = 1μs, h_re = 0, h_ie= 2.1kΩ

Find the input impedance, Z_in (in kΩ).