BJT Biasing: Biasing in BJT amplifier circuits:
The Classical Discrete circuit bias (Voltagedivider bias), Biasing using a collector to base feedback resistor.
Small signal operation and Models:
Collector current and transconductance, Base current and input resistance, Emitter current and input resistance, voltage gain, Separating the signal and the DC quantities, The hybrid Π model.
MOSFETs: Biasing in MOS amplifier circuits:
Fixing VGS, Fixing VG, Drain to Gate feedback resistor.
Small signal operation and modeling:
The DC bias point, signal current in drain, voltage gain, small signal equivalent circuit models, transconductance. [Text 1: 3.5(3.5.1, 3.5.3), 3.6(3.6.1 to 3.6.6), 4.5(4.5.1, 4.5.2, 4.5.3), 4.6(4.6.1 to 4.6.6) ]
MOSFET Amplifier configuration:
Basic configurations, characterizing amplifiers, CS amplifier with and without source resistance RS, Source follower.
MOSFET internal capacitances and High frequency model:
The gate capacitive effect, Junction capacitances, High frequency model.
Frequency response of the CS amplifier:
The three frequency bands, high frequency response, Low frequency response.
Oscillators:
FET based Phase shift oscillator, LC and Crystal Oscillators (no derivation)
[Text 1: 4.7(4.7.1 to 4.7.4, 4.7.6) 4.8(4.8.1, 4.8.2, 4.8.3), 4.9, 12.2.2, 12.3.1, 12,3,2]
Feedback Amplifier:
General feedback structure, Properties of negative feedback, The Four Basic Feedback Topologies, The series-shunt, series-series, shunt-shunt and shunt-series amplifiers (Qualitative Analysis).
Output Stages and Power Amplifiers:
Introduction, Classification of output stages,, Class A output stage, Class B output stage: Transfer Characteristics, Power Dissipation, Power Conversion efficiency, Class AB output stage, Class C tuned Amplifier.
[Text 1: 7.1, 7.2, 7.3, 7.4.1, 7.5.1, 7.6 (7.6.1 to 7.6.3), 13.1, 13.2, 13.3(13.3.1, 13.3.2, 13.3.3, 13.4, 13.7)]
Op-Amp with Negative Feedback and general applications
Inverting and Non inverting Amplifiers – Closed Loop voltage gain, Input impedance, Output impedance, Bandwidth with feedback. DC and AC Amplifiers, Summing, Scaling and Averaging Amplifiers, Instrumentation amplifier, Comparators, Zero Crossing Detector, Schmitt trigger.
[Text 2: 3.3(3.3.1 to 3.3.6), 3.4(3.4.1 to 3.4.5) 6.2, 6.5, 6.6 (6.6.1), 8.2, 8.3, 8.4]
Op-Amp Circuits:
DAC - Weighted resistor and R-2R ladder, ADC- Successive approximation type, Small Signal half wave rectifier, Active Filters, First and second order low-pass and highpass Butterworth filters, Band-pass filters, Band reject filters.
555 Timer and its applications:
Monostable and a stable Multivibrators.
[Text 2: 8.11(8.11.1a, 8.11.1b), 8.11.2a, 8.12.2, 7.2, 7.3, 7.4, 7.5, 7.6, 7.8, 7.9, 9.4.1, 9.4.1(a), 9.4.3, 9.4.3(a)]
Course Outcomes:
At the end of this course students will demonstrate the ability to
• Understand the characteristics of BJTs and FETs.
• Design and analyze BJT and FET amplifier circuits.
• Design sinusoidal and non-sinusoidal oscillators.
• Understand the functioning of linear ICs.
• Design of Linear IC based circuits.
Question paper pattern:
• Examination will be conducted for 100 marks with question paper containing 10 full questions, each of 20 marks.
• Each full question can have a maximum of 4 sub questions.
• There will be 2 full questions from each module covering all the topics of the module.
• Students will have to answer 5 full questions, selecting one full question from each module.
• The total marks will be proportionally reduced to 60 marks as SEE marks is 60.
Text Books:
1. Microelectronic Circuits, Theory and Applications, Adel S Sedra, Kenneth C Smith, 6th Edition, Oxford, 2015.ISBN:978-0-19-808913-1
2. Op-Amps and Linear Integrated Circuits, Ramakant A Gayakwad, 4th Edition. Pearson Education, 2000. ISBN: 8120320581
Reference Books:
1. Electronic Devices and Circuit Theory, Robert L Boylestad and Louis Nashelsky, 11th Edition, Pearson Education, 2013, ISBN: 978-93-325-4260-0.
2. Fundamentals of Microelectronics, BehzadRazavi, 2nd Edition, John Weily, 2015, ISBN 978-81-265-7135-2
3. J.Millman&C.C.Halkias―Integrated Electronics, 2nd edition, 2010, TMH. ISBN 0-07-462245-5