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Lecture 0

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:

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Lecture 0

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  1. Lecture 0 Course Overview

  2. 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)

  3. Course Webpage

  4. Instructor Availability • Instructor: Dr. Jack Ou • Office: Salazar 2010B • Office hours: • MW 10:30-11:00, TH 3:00 to 4:00 • Email: jack.ou@sonoma.edu • I like to communicate over email. • I do not check my voice mail. • Do not overlook the opportunity to meet with the instructor.

  5. 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

  6. Prerequisite: Physics 214 Need to tie substrate to GND to avoid current through PN diode. VTH=300mV to 500 mV (OFF) (ON) Free electrons appear at VG=VTH. Positive charges repel the holes creating a depletion region, a region free of holes.

  7. Lessons from Electronics I • Diode • Device Physics • Circuit Design • Bipolar junction transistor • Device Physics • Circuit Design • Complementary Metal Oxide Semiconductor • Device Physics (STOPPED HERE!) • Circuit Design (NAND Gate)

  8. BJT & MOS Transistor [Chapter 4,5] [Chapter 6,7]

  9. Analogous Devices • Terminals • “C”↔”D” • “E” ↔”S” • “B” ↔”G” • Analogous Devices • NPN ↔NMOS • PNP ↔PMOS

  10. Equivalent Circuit

  11. Small Signal Model (NPN) (PNP) • Statements that are always true for both NPN and PNP. • rπ is between B and E. • the direction of the dependent current source always points • from the collector to emitter. • 3. ro is always between B and C.

  12. Small Signal Analysis • Replace each ideal DC voltage source with a small signal ground. • Replace each ideal DC current source with an open circuit. • Replace each transistor by its small signal model • Analyze the small signal equivalent circuit.

  13. Voltage Source RS should be ~0 for a good battery! Replace the DC voltage Source with a short to ground.

  14. Current Source RS should be infinity for a good current source!

  15. Terminal Resistance of a BJT Eq. 5.291 Eq. 5.198 Eq. 5.162

  16. Formula to Memorize

  17. NPN to NMOS

  18. Topics Covered in ES330 • Review the elementary amplifier configurations • Common source • Common drain • Common gate • Build slightly more advanced circuits with elementary stages

  19. Circuits from Chapter 9 Cascode amplifier Current mirror

  20. Circuits from Chapter 10 Differential amplifier Differential amplifier + Current Mirror

  21. Chapter 11 High Frequency Model of a Transistor

  22. Small Signal Equivalent Model at High Frequency (If time permits) (Transmission Zero)

  23. Application Example

  24. Schematic of the EKG

  25. Textbook • Required Text: BehzadRazavi, “Fundamentals of Microelectronics”, Wiley, 1st edition.(ISBN-13: 978-0-471-47846-1) • Reminder: ES330 is a 2-unit course requiring an average of 6-8hours of study per week!

  26. Course Policies • Regarding classroom conduct • Regarding homework, exams and Piazza

  27. Grading • 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%

  28. 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

  29. Supplemental Assignment • Focus • History of Silicon valley • Engineers’ reflection of their career • Talks given by some interesting characters • Format: video/articles

  30. Homework • 20 % of the final grade • Problems in each assignment are graded selectively. • 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

  31. 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.

  32. Helpful practices for better grades • Before class • Download the lecture notes from the website and review them • 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

  33. 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)

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