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Analog Electronics Circuits


Objective of the course: To familiarize and develop skills in the design and analysis of Analog Electronic Circuits which form the building blocks of almost any electronic system.

Structure of the course: This course primarily deals with the operation and application of transistors as amplifying or controlling devices. The lectures are aimed to guide you think about the design, performance and limitations of analog electronic circuits commonly used in ICs. You are expected to participate in the class not only in terms of raising questions and answering them but also in terms of applying what you learn to contrived and real world problems.

Detailed Course Outline

Transistor biasing (2 hrs)- Review of BJTs.Biasing the BJT. Various schemes and limitations.
FET circuits (2 hrs)- Review of FET, MOSFET, types, operation & characteristics. FET circuits and their biasing.
Current mirrors(3 hrs)- Biasing using a current source. Analysis of MOS & BJT Current Mirrors, Wilson Current Mirror, Wildar Current Mirror. Applications of Current mirrors as active loads.
Small signal amplifier design (5 hrs)- BJT amplifier analysis using DC and AC eq ckts. CE amplifier analysis, Emitter follower analysis, Multi-stage ac-coupled amplifiers, Direct coupled amplifiers.
Frequency response of amplifiers (5 hrs)- S-domain Analysis, Amplifier Transfer function.Hybrid-\pi equivalent circuit model of BJT, Low and high frequency model. Frequency response of CE amplifier. Cascode configuration & Cascade configuration. Frequency response of multi-stage amplifiers
Feedback amplifiers (3 hrs)- Principles & properties, series-shunt feedback, Series-series feedback, shunt-shunt feedback, Shunt-series feedback, Loop gain, stability issues.
Power amplifiers (4 hrs)- Amplifier classification, Class A, Class B, Class AB and class C amplifier analysis. Power Transistors
Tuned amplifiers (2 hrs)- Basic principles, losses, use of autotransformer, Multiple tuned circuits - synchronous and stagger tuning.
Oscillators (3 hrs)-Basic principles, Phase-shift oscillator, Wein-bridge oscillators, Colpitts oscillator, Hartley & crystal Oscillators.
Power supplies and voltage regulators( 4 hrs)- Recap of Half & full-wave rectifiers & filters. Design and analysis of Series voltage regulator, Shunt voltage regulator, and IC voltage regulators.
FET circuits (3 hrs)- Review of FET, MOSFET, types, operation & characteristics. FET circuits and their biasing. FET amplifiers and their analysis.
Operational amplifiers (5 hrs)- Ideal Op Amp, Inverting configuration, analysis & applications. Non-inverting configuration, analysis & applications. Non-ideal performance, CMRR, i/p, o/p resistance, DC biasing problems. Frequency response and bandwidth of Op amps.
Noise Analysis (2 hrs)-Introduction to noise, Types of noise, time-domain and frequency domain analysis. Noise models for circuit elements, Noise analysis examples.

Reference Book

Sedra and Smith, "Microelectronic Circuits", Oxford University Press, 1998.
Click here for list of problems that you can solve from the above book.

Exam Policy:The marks distribution for the exams in the course are as follows:

Minor-I 20 %
Minor-II 20 %
Major - 40 %
Quizes - 20 %


Your feedback is valuable:

Please note that your feedback on any aspect of this course will be greatly appreciated. Any time, you can talk to me to give your informal feedback. However, I will be taking two written feedbacks from you - one just after Minor-I and the other, a week before the Major. I expect you to be objective and enthusiastic to give your feedback.

Contact outside lecture hours: In the department, you can find me in II-303. Phone: 1085 email: mamidala@ieee.org   Home: www.mjkumar.net

Final Pointers

1. Coming to the class on time is very essential.
2. You must clarify your doubts during the lecture or at the very least immediately after the class.
3. Practice solving as many problems from the text books as possible.
4. Always keep a calculator with you in the class.

Useful Links: (If you come across a useful site for EE204N, please email me)

1. Early history of BJTs as told by the inventor of Early effect.  (IEEE Link, needs Acrobat reader, slow and accessible only from IIT).
2. How are Integrated Circuits Fabricated? A nice site to visit.