Syllabus
Module 1: Role of Interface Electronics, Analog Electronic Blocks, OPAMP – internal structure, Open- loop gain, Input R, Output R, DC noise sources and their drifts, CMRR, PSRR, Bandwidth and stability, Slew rate, Noise – general introduction, OPAMP Circuits and Analysis - Difference and Instrumentation Amplifiers (3-opamp and 2-opamp), Effect of cable capacitance and wire-resistance on CMRR, IA with guards, Biomedical application, Current-mode IA (Howland), Current-input IA, filters, Filters with underdamped response, state-variable filters, All- pass filters, Current Sources (floating and grounded loads), PGA, V-to-f converters, Negative Resistance Generator, Gyrator, GIC and applications, Quadrature oscillator, Introduction to switched capacitor circuits and applications, OTA and applications.
Module 2: Frequency and Time Measurement, Sample Hold Circuits, ADCs and their properties, Different ADC Architectures – Single Slope, Dual Slope (with emphasis on DMM), SAR, Flash, Sigma- Delta. Voltage references and regulators,
Module 3: Basic electronic design concepts - potential divider, component packages, burden/loading effects, Error budgeting – Zener drift, resistance drift, voltage offsets and bias current errors, Transistor as amplifier – Basic circuit, loading effects; transistor as a switch – Darlington pairs, drivers, high-side drives, transistor latch.
Module 4: Analog controllers – temperature controller, error amplifier, integral controller, PI controller, PID controller, system TC Vs sensing TC.
Module 5: Transistor (linear) voltage regulator – over current protection, fold-back protection, voltage regulator with bypass, heat-sink design, regulator design with LDOs, current sources – high side loads, grounded loads with reference wrt. Ground, current sources with 3 pin regulator ICs, 4-20mA current transmitters, loop powered circuits.
Module 6: Special topics: PLL, isolation amplifiers, gate drivers, oscilloscope probes (gain selection circuits), techniques for power management.
Mini Projects for internal assessment (Selected topics)
1. 250.000 mA precision current source design
2. 4-20mA current transmitter
3. Implementation of opamp based active filters
4. Capacitance multipliers or gyrators
5. One quadrant multiplier with PWM IC
6. Sensor linearization circuit
7. High fidelity headphone amplifier
8. Power grid voltage – angle detector with analog PLL
Text Books
Same as Reference
References
1. Sensors and Signal Conditioning, Ramón Pallás-Areny, John G. Webster, 2nd Edition, Wiley, 2003.
2. Design with Operational Amplifiers and Analog Integrated Circuits, Sergio Franco, 3rd Edition, McGraw hill, 2002.
3. Analog Signal Processing, Ramón Pallás-Areny, John G. Webster, 1st Edition, Wiley, 2011.
4. Operational Amplifiers, George Clayton, Steve Winder, 5th Edition, Elsevier Newnes, 2003.
5. Opamps and Linear Integrated Circuits, Ramakant A. Gayakwad, PHI India, 4th Edition.
6. Capacitive Sensors – Design and Applications, IEEE Press Series on Electronic Technology, L. K. Baxter, NJ 1997.
7. Principle of Measurement Systems, John P. Bentley, Pearson Education; 3rd Edition, 2006.
8. The art of electronics Horowitz, P., & Hill, W. (3rd ed.). Cambridge University Press, 2015.
Course Outcomes (COs):
CO1: Understand the design and specifications of various interface electronic circuits with focus on industry-oriented case studies
CO2: Study and analyze advanced electronic front-ends and digitizing techniques, including analog-to-digital converters and their characteristics.
CO3: Design analog electronic circuits considering temperature drifts, tolerances, environmental aspects with error estimation
CO4: Design and analyze standard electronic circuit configurations such as linear regulators, amplifiers, current transmitters, controllers for industrial applications.