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Unformatted text preview: ) Now consider a short-channel MOSFET with
. What is its intrinsic gain
(Assume that the electron
drift velocity is saturated at
d) Based on your answers to part (a) and part (c), is MOSFET scaling (miniaturization) beneficial
for amplifier circuit applications?
Problem 3 [20 points]:
For the following circuit,
. is a long-channel NMOSFET with , a) Estimate the bias current ( ) by assuming
. Is the transistor operating in the triode or saturation region? Justify your answer.
b) What is the maximum value of
such that the MOSFET operates in the saturation region (Assume
. Draw the small-signal analysis circuit. Indicate numerical values for the
NMOSFET small-signal parameters (
). Problem 4 [20 points]:
In the circuit shown below,
. Long-channel MOSFET
) is biased such that
a) What is the minimum allowable value of
must operate in saturation mode?
operating at the edge of saturation (e.g. with
), what are the values of
if the input impedance must be
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This note was uploaded on 01/22/2014 for the course EE 105 taught by Professor King-liu during the Fall '07 term at University of California, Berkeley.
- Fall '07
- Electrical Engineering