NPTEL Syllabus

NOC:Analog Circuits -Video course

COURSE OUTLINE This course is an introduction to amplifiers usingtransistors. Students will be introduced to MOStransistors, their characteristics, techniques forbiasing them, and amplifiers using them. Thebasic transistor amplifier stages are seen asrealizations of different controlled sources usingnegative feedback. Small- and large-signalcharacteristics of each amplifier will bediscussed. At the end of this course, studentsshould be able to recognize and analyze thebasic amplifiers and biasing arrangementsusing MOS or bipolar transistors.

COURSE DETAIL

Week.No

Unit Unit Contents

1. 1Course introduction; Needfor nonlinear circuits;Incremental gain of a twoport nonlinear circuit

2Constraints on y-parametersand large signalcharacteristics to obtain ahigh gain; MOS transistorand its characteristics

2. 3AC coupling network to addsignal to bias; AC coupling atinput and output; Commonsource amplifier

4Output conductance of aMOS transistor; Inherentgain limitation of a transistor

3. 5Sensitivity of gm to transistorparameters; Biasing atransistor at a constantcurrent; Drain feedback

NPTELhttp://nptel.ac.in

Electrical Engineering

Pre-requisites:

Typical 1st and 2nd year EE curriculum.Specific pre-requisite courses are:1. Basic Electrical Circuits(e.g.http://nptel.ac.in/courses/117106108/orhttps://onlinecourses.nptel.ac.in/iitm_ec_1010/)2. Networks and Systems(e.g.http://nptel.ac.in/courses/108106075/)Coordinators:Dr. Nagendra KrishnapuraDepartment of Electrical EngineeringIITMadras

configuration; Current mirror

6Common source amplifierusing drain feedback

4. 7Common source amplifierusing current mirror bias

8Common source amplifierusing source feedback bias;Using a resistor instead of acurrent source for biasing;Further biasing techniques

5. 9VCVS using a transistor;Source follower biasing

10CCVS using a transistor;CCVS using an opamp

6. 11Biasing a CCVS; Emitterdegenrated amplifier

12Common gate amplifier andits biasing

7. 13VCCS using a transistor andits biasing

14pMOS transistor and itssmall signal model

8. 15Biasing a pMOS transistor;Converting nMOS circuits topMOS;

16Amplifiers using a pMOStransistor

9. 17Bipolar junction transistor-large and small signalmodels

18BJT circuits- Biasing;Common source amplifier;Emitter follower

10. 19BJT Common base amplifier,Transimpedance amplifier

20Swing limits of amplifiers

11. 21Two transistors in feedback

22Two transistors in feedback

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