If the output impedance of the current source is Ri, what is the outp – McqOptions

MCQOPTIONS

1.	If the output impedance of the current source is Ri, what is the output impedance of the CS stage shown below, if channel length modulation is neglected?
A.	(1 + gm * (R1 \|\| R2)) * Ri + (R1 \|\| R2)
B.	{R1 * (R2 + ro)} \|\| Ri
C.	R1 \|\| R2
D.	0
Answer» B. {R1 * (R2 + ro)} \|\| Ri

Discussion

No Comment Found

Related MCQs

If Channel Length Modulation is present and gm is the transconductance of M1, what happens to the output resistance of for a fixed V2 in the following circuit?
If the internal resistance of the current source is finite, what will happen to the voltage gain. for the following C.S. stage, if K is doubled?
If both the MOSFET’s are identical and have channel length modulation, what is the output impedance at node S?
If both the MOSFET’s are identical, what is the voltage gain from V1 to node S?
If the transconductance of M1 is 5S, voltage gain for the following degenerated CS stage is _____
If the output impedance of the current source is Ri, what is the output impedance of the CS stage shown below, if channel length modulation is neglected?
What is the overall input resistance of the CS stage shown below?
If the output voltage is sensed at the collector, which of the following option perfectly describes the stage shown below?
In the following C.S. stage shown below, what is the voltage gain from the gate to the drain of M1 if λ>0?
In the following C.S. stage shown below, what is the output impedance, if channel length modulation is neglected?