ECE 6412 Spring 2006
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Homework No. 1  Solutions
Problem 1  (10 points)
A top view of a MOS transistor is
shown.
(a)
Identify the type of
transistor (NMOS or PMOS) and its
value of W and L.
(b.) Draw the crosssection AA
approxi ma
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Homework Assignment No. 2  Solutions
Problem 1  1 it] points! {Problem 5.20 of Gray, Hurst, Lewis and Meyer}
{a}. Device Currents
W SPICE Simulations
J A 413a».
P = 8.3 mW
Elli15".
(c). SPICE Results
« A plot of the DC transfer charac
ECE 6412  Spring 2006
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Homework Assignment No. 4  Solutions
Problem 1
Find the midband voltage gain and the 3dB frequency in Hertz for the circuit shown.
C2=1pF
R1=1k
Vin
C1=
10pF
R2=
10k
+
V1

V1
100
R3=
20k
C3=
10pF
+
Vout

S02E1P3
Solution
Th
ECE 6412  Spring 2005
Page 1
Homework Assignment No. 6  Solutions
Problem 1  (10 points)
For the CMOS op amp
VDD=2.5V
shown, find the following
quantities.
10/1
1.) Slew rate (V/sec.)
10/1
M5
M8
2.) Positive and negative
+
output voltage limits (all
vi
ECE 6412  Spring 2006
Page 1
Homework Assignment No. 8  Solutions
Problem 1  (10 points)
This problem deals
+3V
with the op amp
M3
M4
shown in Fig.
M14
P6.515. All
1.5I
1.5I
device lengths are
1m, the slew rate
M15
M6
M7
is 8V/s, the GB
is 8MHz, the
0
ECE 6412  Spring 2006
Page 1
Homework Assignment No. 9 Solutions
Problem 1 (10 points)
Problem 2 (10 points)
Problem 3 (10 points)
Problem 4 (10 points)
Problem 5 (10 points)
Problem 6 (10 points)
Problem 7 (10 points)
Problem 8 (10 points)
Problem 9 (10
Homework Assignment No. 10 Solutions
Problem 4
Problem 6 P7.24
Use the technique of Ex. 7.22 to extend the GB of the cascode op amp of Ex. 6.52 as
much as possible that will maintain 60 phase margin. What is the minimum value of CL
for the maximum GB?
ECE 6412  Spring 2006
Page 1
Homework Assignment No. 12 Solutions
Problem 1 (10 points)
Problem 2 (10 points)
Applying the halfcircuit principle, it can be seen that each circuit consists of a cascade of two
commonsource (CS) stages the first with a di
EXAMINATION NO. 1
NAME
SCORE £100
INSTRUCTIONS: This exam is closed book with one sheet of notes permitted. The exam
consists old questions for a total of 100 points. Please show your work leading to your
answers so that maximum partial credit may be g