The MOSFET in the amplifier circuit below in Figure 2 has threshold voltage Vị = 2V, MOSFET parameter k = „Cox(W/L) = 4mA/Vv² Ignore channel length modulation. R1 = IkN, R2 = 1MQ, R3 = IM2. VDp = 8V. As abeled, input and output of the amplifier are nodal voltages of vn and Vo, respectively. The input voltage source has zero resistance and produces a signal vig which is a sinusoidal signal with zero average. Vsig= 10sin(t) in mV. t is time. (a) Find the DC voltage at the output node v, and calculate the transconductance of the MOSFET (gm) under this DC bias. (Hint: you can potentially simplify your calculation using the fact that R2, R3 > R1.)

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The MOSFET in the amplifier circuit below in Figure 2 has threshold voltage V, = 2V, MOSFET parameter k. =
H„Cox(W/L) = 4mA/V? Ignore channel length modulation. Ri = 1kN, R2 = 1Mn, R3 = 1MQ. VDD = 8V. As
labeled, input and output of the amplifier are nodal voltages of vin and vo, respectively.
The input voltage source has zero resistance and produces a signal vsig which is a sinusoidal signal with zero
average. Vsig= 10sin(t) in mV. t is time.
(a) Find the DC voltage at the output node vo and calculate the transconductance of the MOSFET (gm) under
this DC bias. (Hint: you can potentially simplify your calculation using the fact that R2, R3 >> R1.)
Transcribed Image Text:The MOSFET in the amplifier circuit below in Figure 2 has threshold voltage V, = 2V, MOSFET parameter k. = H„Cox(W/L) = 4mA/V? Ignore channel length modulation. Ri = 1kN, R2 = 1Mn, R3 = 1MQ. VDD = 8V. As labeled, input and output of the amplifier are nodal voltages of vin and vo, respectively. The input voltage source has zero resistance and produces a signal vsig which is a sinusoidal signal with zero average. Vsig= 10sin(t) in mV. t is time. (a) Find the DC voltage at the output node vo and calculate the transconductance of the MOSFET (gm) under this DC bias. (Hint: you can potentially simplify your calculation using the fact that R2, R3 >> R1.)
VDD
R|
R2
do
R3
Transcribed Image Text:VDD R| R2 do R3
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