Syllabus
Role of Interface Electronics, Example: Linear Position Sensing, Signal conditioners + ADC, Contactless potentiometer (resistance-capacitance scheme) – Methodology, Interface Circuits, Need of Current/Pneumatic Transmission, Analog Electronic Blocks, OPAMP – internal struc- ture, Open-loop gain, Input R, Output R, DC noise sources and their drifts, CMRR, PSRR, Band- width and stability, Slew rate, Noise – general introduction and noise in opamps and their anal- ysis, Noise-equivalent Bandwidth, Output voltage swing, Compensation Techniques.
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, Quad- rature oscillator, Introduction to switched capacitor circuits and applications, OTA and applica- tions.
Magnetic Sensors - Hall Effect Sensors, Magnetoresistance Sensors, GMR Sensors, Lineariza- tion Electronics for Sinusoidal Encoders, Wiegand Effect, Special Topics: Interface Electronics for Remote-connected sensor elements, Front-end Electronics for Reluctance-Hall Effect Angle Transducer (Brake Wear Monitoring), Oscilloscope Probes. 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, Phase-locked loops, EMI and EMC-Techniques
Text Books
Same as Reference
References
1. Ramón Pallás-Areny, John G. Webster, Sensors and Signal Conditioning, 2nd Edition, Wiley, 2003.
2. Sergio Franco, Design with Operational Amplifiers and Analog Integrated Circuits, 3rd Edition, McGraw hill, 2002.
3. Ramón Pallás-Areny, John G. Webster, Analog Signal Processing, 1st Edition, Wiley, 2011.
4. George Clayton, Steve Winder, “Operational Amplifiers”, 5th Edition, Elsevier Newnes, 2003.
5. Ramakant A. Gayakwad, “Opamps and Linear Integrated Circuits,” PHI India, 4th Edition.
6. L. K. Baxter, Capacitive Sensors – Design and Applications, IEEE Press Series on Elec- tronic Technology, NJ (1997).
7. John P. Bentley, Principle of Measurement Systems, Pearson Education; 3rd Edition, 2006
Course Outcomes (COs):
CO1: Understand the design of interfacing electronics and various specifications and compensation techniques of operational amplifiers.
CO2: Study and understand important sensor interfacing circuits based on operational amplifiers.
CO3: Study of the principle of state-of-the-art magnetic sensors, interfacing electronics and applications.
CO4: Understand the principles of digital instrumentation and internal architecture of different ADC principles, digital multimeters, oscilloscopes, PLL, and regulators