Chapter #5: MOSFETs
from Microelectronic Circuits Text
by Sedra and Smith
Oxford Publishing
Oxford University Publishing
Microelectronic Circuits by Adel S. Sedra and Kenneth C. Smith (0195323033)
Introduction
IN THIS CHAPTER WE WILL LEARN
The physical
COMMON MOS AMPLIFIERS
1
MOS Operation Regions no CLM
2
Drain Current (NMOS) no CLM
3
Drain Current (PMOS) no CLM
4
Drain Current (PMOS) no CLM
5
CLM Channel Length Modulation
valid when vDS >vOV
W 2
1
(eq5.17) iD = ( nC ox ) vOV in A
L
2
W 2
1
(eq5.23)
ECE3020 SP14
Due 3/28/14
SPICE Project 2
1. Complete Problem 6.146 in the textbook. (Use Beta =200)
2. Simulate the circuit in your SPICE simulator (using the resistor values you found in 1).
You should use the model library part for a 2N2222 Transistor.
ECE 3020 SP14
SPICE Project 1
DUE 2/26/14
This will be your initial exposure to a circuit simulator. TopSpice is a free simulator
with a good library of parts.
1. Download and install the TopSpice demo (free) from
http:/penzar.com/topspice/demo.php
2. Ope
PN2222A / MMBT2222A / PZT2222A
NPN General Purpose Amplifier
Features
This device is for use as a medium power amplifier and switch requiring collector currents up to 500mA.
Sourced from process 19.
MMBT2222A
PN2222A
PZT2222A
C
C
E
E
TO92
SOT23
SOT22
Opamp data sheet Terms:
Input Offset Voltage: The apparent voltage difference between the inputs even when the inputs are
shorted together.
Input Offset Voltage Drift: How much the input offset changes with temperature.
Input Offset Voltage Adjustment Ra
LM741
www.ti.com
SNOSC25C MAY 1998 REVISED MARCH 2013
LM741 Operational Amplifier
Check for Samples: LM741
FEATURES
DESCRIPTION
The LM741 series are general purpose operational
amplifiers which feature improved performance over
industry standards like the
Draft Equation Sheets: from 1st draft of final exam (may still be edited as I finish the exam)
VT 25 mV near room temperature
Z 2 Z1
1 Z 2 Z1
1
A
G
dvo
dt
1
i
nV
rD D
T
ID
vD iD I D
1 Z 2 Z1
1 Z 2 Z1
1
A
G
I
I
V2 V1 nVT ln 2 2.3nVT log 2
I
I
1
Page 1 of 21
Example of how to do the steps for TopSpice simulation for the Au13 project
Problem 3
[10 points]
Draw a schematic of your design in TopSpice, with all components assigned the
appropriate values.
You should review the lecture notes of 8/30 an
Chapter #8: Differential and
Multistage Amplifiers
from Microelectronic Circuits Text
by Sedra and Smith
Oxford Publishing
Oxford University Publishing
Microelectronic Circuits by Adel S. Sedra and Kenneth C. Smith (0195323033)
Introduction
IN THIS CHAPT
BJT DIFFERENTIAL AMPLIFIERS
1
BJT Small Signal Parameters
2
BJT Differential Pair
For common mode:
If VB1=VB2; then
VBE1 = VBE2 therefore
IC1 = IC2 = I/2
Both transistors must be in active
Figure 8.15 The basic BJT differentialpair configuration.
3
BJT D
This is a draft equation sheet. I may modify it as I prepare your exam.
VT 25 mV near room temperature
v
iC I S exp BE
VT
NMOS
triode for vGD Vtn
1 2
W
iD k n vGS Vtn v DS v DS
2
L
1 W
k n vGS Vtn 2 for vGD Vtn
2
L
1 W
iD k n vGS Vtn 2 1 v DS
2
L
4.
Figure 1: AC Sweep using different value capacitors
Figure 2: AC Sweep using different value inductors
Figure 5: Comparison between Resistance of 1T and 100K
Figure 6: Comparison between Resistance of 10K and 1K
Figure 3: Using Vdb as yaxis
Figure 4:
ECE 3030: Midterm1, September 28, 2015
NAME: _
PLEDGE: _
FILL YOUR NAME AND PLEDGE YOURSELF TO FINISH THIS EXAM
INDEPENDENTLY.
ALL QUESTIONS MUST BE ANSWERED ON THE PAGES PROVIDED. WHEN
NECESSARY USE THE BACK OF THE PAGE TO COMPLETE THE QUESTION.
CLOSED B
ECE 3020
Homework #4
M W F 11:30 am 12:25 pm
4/6/16
1. A flyback diode (sometimes called a snubber diode, commutating diode, freewheeling diode,
suppressor diode, suppression diode, clamp diode or catch diode is a diode used to eliminate flyback,
which is
ECE 3020
Homework #1
M W F 11:30 am 12:25 pm
1/20/16
0. Ever since I was young I always had an affinity towards technological advancement and new and
upcoming technologies such as the latest electronic gadgets and mobile devices. I also enjoyed
coding and
ECE3020 Spr15
Exam I
Name/Section: _
Short Answer:
1.Describe 4 types of electronics.
Analog, Digital, RF, Power
2. Why do electronics designers approximate algebraic equations to do design?
Designers need algebraic equations that predict behavior and con
Sketch the small signal circuit considering the current source opened.
rd : prﬁ’vﬂ Obtain the gain of the given circuit conﬁguration, 1 , where v0 is known as the output
Vi
voltage and v: is known as the input voltage. On considering the reactance of the
Ece3020 Spr 15: Some homework solutions
H1
1.Describe the 4 types of electronics and how/why they are modeled differently (different
theory)? Look at the ECE dept. 5x2x courses and list which ones cover which type of
electronics.
Analog, Digital, RF, Powe
From the Circuit,
V
GS]
=V :—V3
(3.92
Assume the transistors are in saturation hence k; is same for both QI and Q2,
Since the two transistors are matched, the drain currents are
200 “A
i = if
m n:
2
=100 “A
It is known that,
. l .
(I) = _kn
2 [Hm— V2):
[
ECE3020 Homework 4 Some Solutions
1.Describe the linearization of the pendulum equation.
This is well described online. The equation of motion of the pendulum is a second order
diff. equ. from Newtons force law. The equation includes a sin(theta) term whi
ECE3020 Homework 4
Reading:

Diodes in textbook small signal diode modeling
MIT OCW Lectures: 6 11 Nonlinear Analysis, Incremental Analysis,
MOSFETs,
 Small signal notes on ece3020 open web page
 Transistor slides (from ece5020 textbook) on Carmen
Com
"Rocky" Kenneth Belknap MWF 12:401:35
ECE3020
Homework 3
Op Amp preview
Reading:
MIT OCW video lectures: OpAmps (online)
End part of Chp. 1 (of the your circuits (741 op amp) book (on Carmen)
Textbook: Appropriate parts of on opamps (chp. 2 and feed
ECE 3020 Homework 2
Rocky Kenneth Belknap MWF 12:401:35
7a. Let Rb = Ra. Choose L, R, and C so that the resonance frequency is 60 Hz and the Q is 20.
What is the voltage ratio of output to input at resonance?
7b. Explain why taking the voltage across a r
ECE 3020 MWF 12:401:35
Homework 1
Rocky Kenneth Belknap
1)
Of the four types of electronics, 3 fall under the analog category and 1 falls under the digital
category.
a. Analog Baseband
i. Low frequency sensors, audio and video
ii. A continuous signal
iii