- #1
Waxterzz
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Homework Statement
VOUT, they mean DC
Homework Equations
See picture, r0 is neglected also lambda (channel modulation)
The Attempt at a Solution
I calculate I DS with the formule given: 0.400*(0.5)²=0.1 mA
IOUT = 5/25000 = 0.2 mA
So the current source has got to be 0.1 + 0.2 = 0.3mA. Thats the DC current it has to be delivered right?
I also had to calculate the AC gain:
gm = K (VGS - VT) = 0.4mA/V
vin = vgs
vout / vgs = -gm * vgs * RD = -10This correct?