Transcript intro

Lecture 0
Course Overview
ES 330 Electronics I
• Course description: Theory, characteristics
and operation of MOSFET transistors, elementary
amplifier stages, differential amplifier, half-circuit
analysis, common mode analysis, study of current
mirror, active load design
• When:
– TTH 10:45-12:00 (Lectures)
– T 1-3:40 (Lab, ES231)
• Classroom:
– Salazar Hall 2009A (Lecture, ES230)
– Sal 2005 (Lab, ES231)
Course Webpage
Instructor Availability
• Instructor: Dr. Jack Ou
• Office: Salazar 2010B
• Office hours:
– MW 10:30-11:00, TH 3:00 to 4:00
• Email: [email protected]
– I like to communicate over email.
– I do not check my voice mail.
• Do not overlook the opportunity to
meet with the instructor.
Prerequisite: Electric Circuits (ES220)
• Concepts from ES220
– Ohm’s law
– Series/parallel circuit
– Voltage/current divider
– Nodal analysis
– Mesh analysis
– Dependent sources
– Thevenin and Norton Equivalent Circuit
– AC analysis
Prerequisite: Physics 214
Need to tie substrate to GND
to avoid current through PN
VTH=300mV to 500 mV
Free electrons appear at VG=VTH.
Positive charges repel the holes
creating a depletion region, a region free of holes.
Lessons from Electronics I
• Diode
– Device Physics
– Circuit Design
• Bipolar junction transistor
Device Physics
– Circuit Design
• Complementary Metal Oxide
Device Physics (STOPPED HERE!)
– Circuit Design
BJT & MOS Transistor
[Chapter 4,5]
[Chapter 6,7]
Analogous Devices
• Terminals
– “C”↔”D”
– “E” ↔”S”
– “B” ↔”G”
• Analogous Devices
Equivalent Circuit
Small Signal Model
Statements that are always true for both NPN and PNP.
1. rπ is between B and E.
2. the direction of the dependent current source always points
from the collector to emitter.
3. ro is always between B and C.
Small Signal Analysis
1. Replace each ideal DC voltage source with a
small signal ground.
2. Replace each ideal DC current source with an
open circuit.
3. Replace each transistor by its small signal model
4. Analyze the small signal equivalent circuit.
Voltage Source
RS should be ~0 for
a good battery!
Replace the DC
voltage Source
with a short to
Current Source
RS should be infinity for a
good current source!
Terminal Resistance of a BJT
Eq. 5.162
Eq. 5.198
Eq. 5.291
Formula to Memorize
Topics Covered in ES330
• Review the elementary amplifier
– Common source
– Common drain
– Common gate
• Build slightly more advanced circuits
with elementary stages
Circuits from Chapter 9
Cascode amplifier
Current mirror
Circuits from Chapter 10
Differential amplifier
Differential amplifier + Current Mirror
Chapter 11
High Frequency Model of a Transistor
Small Signal Equivalent Model at
High Frequency (If time permits)
(Transmission Zero)
Application Example
Schematic of the EKG
• Required Text: Behzad Razavi,
“Fundamentals of Microelectronics”,
Wiley, 1st edition. (ISBN-13: 978-0-47147846-1)
• Reminder: ES330 is a 2-unit course
requiring an average of 6-8 hours of
study per week!
Course Policies
• Regarding classroom conduct
• Regarding homework, exams and
• Three exams
– (total: 40 %. Exam #1=20 %, final=20 %)
• Class participation
– (total: 10 %. Attendance=5%, participate in active learning
exercises both in class and out of class=5%)
• Supplemental assignments
– (total: 5 %. Supplemental assignments consist of videos,
articles, and other forms of exercises design to stimulate
students’ interest in semiconductor industry)
• Homework assignment:
– 25 %
• Project
– 20%
Classroom Participation
• Examples of exercises
– You are given a blank sheet of paper,
and asked to respond a brief question.
You will not be graded.
– You maybe asked to present the solution
you have worked on in class.
– You maybe asked to summarized other
students’ response
– You maybe asked to complete
anonymous survey about the course
Supplemental Assignment
• Focus
– History of Silicon valley
– Engineers’ reflection of their career
– Talks given by some interesting characters
• Format: video/articles
• 20 % of the final grade
– Problems in each assignment are graded
– Effort based.
– Each assignment can take on an average six
hours to complete
– Please start your assignment early. Do not wait till
the last minute
– Post your questions on Piazza
Homework Tips
• Try to attack the problems from different angles
– Ask the what if questions
• Summarize the question in your own words.
• “I am stuck because …..”
• “This problem frustrates me because….”
• “Here is what I do not understand…..”
• “Here is what I know about this problem….”
• Be self-critical. Be suspicious of assumptions that
you considered to be true.
• Be disciplined. If you are truly stuck, move on and
come back to work on the question.
Helpful practices for better
• Before class
– Download the lecture notes from the website and review
– Make a list of questions that you want to ask
– Make use of instructor’s office hour
• In class
– Stay awake and listen actively
– Participate in exercises
– Take notes. Make a mental list on what is confusing to you.
• After class
Set aside a time to study.
Review the notes . Use the textbook as a reference.
Do assignments/homework before the deadline
Post questions on Piazza
Important Dates
• 9/3 last day to drop a course with
adjusted fees (done on-line)
• 9/4-15: drop with a “W” (done on-line)
• 9/16-11/13: petition to withdraw from a
class with $20 administrative fee
(dropping classes permitted because
of serious and compelling reasons)