Introduction to Operational Amplifiers:
Introduction, Block schematic of an Op-amp, Power supply connections, Characteristics of an Ideal OP-AMP, Inverting Amplifier, Non-inverting Amplifier, Voltage follower, Differential Amplifier, CMRR. (Relevant problems).
Operational Amplifier Characteristics:
DC characteristics – Input bias current, Input offset current, Input offset voltage, Total output offset voltage, Thermal drift. AC characteristics – Frequency response, Slew rate, PSRR.
Basic op-amp applications –
Scale changer/Inverter. Summing amplifier: Inverting summing amplifier, Non-inverting Summing amplifier, Subtractor, Instrumentation Amplifier. (Relevant problems).
Operational Amplifier Applications:
V – I and I – V converter, Op-amp circuit using diodes, sample and hold circuit, Differentiator and Integrator.
Comparator and waveforms generator:
Comparator, Regenerative comparator (Schmitt Trigger), Astable mutivibrator, Monostable multivibrator and Triangular waveform generator. Phase shift oscillator, Wien bridge oscillator. (Relevant problems).
Voltage Regulators:
Introduction, Series Op-amp regulator, IC voltage regulators, 723 general purpose regulators, switching regulator.
Active filters:
First and Second order LPF, First and Second orders HPF, Band Pass Filters, Band Reject filters. (Design examples).
555 Timer:
Description of Functional Diagram, Monostable operation, Applications of Monostable Multivibrator: Frequency Divider & Pulse Width Modulation. Astable operation, Applications of Astable Multivibrator: FSK Generator and Pulse Position Modulation.
Phase Locked Loops:
Basic Principles, Analog phase Detector/comparator, Voltage controlled oscillator.PLL applications: Frequency Multiplication/Division, Frequency translation, FM demodulation.
Data Acquisition Systems:
Types of instrumentation systems, Components of analog data acquisition system, Digital data acquisition system.
Data Converters:
Digital to Analog Converters:
Basic DAC techniques, Weighted Resistor DAC, R – 2R Ladder DAC, DAC 0800 (Data sheet: Features and description only).
Analog to Digital Converters:
Functional diagram of ADC, Flash ADC, Counter type ADC, Successive approximation ADC, Dual slope ADC. ADC 0809 (Data sheet: Features, specifications and description only), DAC/ADC specifications.
Course Outcomes:
After studying this course, students will able to:
1. Understand the basic principles and operation of op-amp.
2. Design and develop circuits to meet the practical applications
3. Implement and integrate the op-amp circuits in electronic gadgets.
Question Paper Pattern:
• The question paper will have TEN questions.
• Each full question carry 20 marks
• There will be TWO full questions (with maximum of THREE sub questions) from each module.
• Each full question will have sub questions covering all the topics under a module.
• The students will have to answer FIVE full questions, selecting ONE full question from each module.
Textbooks:
1. “Linear Integrated Circuits”, D. Roy Choudhury and Shail B. Jain, 4th edition, Reprint 2010, New Age International. (Module -1,2,3,4 & 5)
2. “Op - Amps and Linear Integrated Circuits”, Ramakant A. Gayakwad, 4th edition, PHI (Module-3)
3. “A course in Electrical & Electronic Measurements & Instrumentation”, A K Sawhney, Dhanpat Rai Publications, 19th edition, 2011.(Module-5)
Reference Books:
1. “Operational Amplifiers and Linear Integrated Circuits”, Robert. F. Coughlin & Fred. F. Driscoll, PHI/Pearson, 2006
2. “Op - Amps and Linear Integrated Circuits”, James M. Fiore, Thomson Learning, 2001
3. “Design with Operational Amplifiers and Analog Integrated Circuits”, Sergio Franco, TMH, 3e, 2005