EE25C09 Linear Integrated Circuits Syllabus:

EE25C09 Linear Integrated Circuits Syllabus – Anna University UG Syllabus Regulation 2025

Course objective:

A linear integrated circuit is a solid-state analog device capable of operating across a continuous range of input levels, offering theoretically infinite operating states. These circuits are commonly used in applications such as audio amplifiers, analog-to-digital converters, averaging amplifiers, differentiators, DC amplifiers, integrators, multivibrators, oscillators, audio filters, and sweep generators.

Introduction: Integrated circuits – Classification, Thin and thick film techniques, SMT(Surface Mount Technology) Monolithic technique – wafer preparation, Epitaxial growth, Oxidation, Photolithography, Diffusion, Ion Implantation, Isolation, Metallization and Packaging, Fabrication of Integrated resistors, capacitors and inductors -Bipolar and MOSFET devices fabrication techniques

Operational Amplifier: Basic concepts – differential amplifiers – block diagram-ideal op-amp parameters – Basic op-amp applications Scale changer, Inverting and noninverting amplifiers, summer and subtractor, Log and antilog amplifiers – multiplier, Divider, differentiator, Integrator. Instrumentation amplifier

OP-Amp Circuits: V to I and I to V converters- Precision rectifier-Clipper and clamper- Sample and hold circuits – Active filters: first order and second order LPF and HPF- Band Pass and Band Reject Filters – Comparators – Regenerative comparator (Schmitt Trigger)- Square wave and Triangular wave generators- Sine wave generators: RC Phase shift and Wein bridge oscillators.

Other Linear ICS: IC voltage regulators – Fixed and Variable voltage regulators78XX and 79XX series regulators, LM317 voltage regulator -Switching Regulator- 555 timer IC: Astable and Monostable modes – Phase locked loop – Operation, Characteristics & Application.

D/A and A/D Converters: weighted resistor and R-2R ladder- A/D converters: Successive approximation, Counter type, Flash type and Delta-sigma

T1: Classification of Integrated Circuits
• Compare:
o Analog ICs
o Digital ICs
o Mixed signal ICs
• Explain applications of each category
T2: Thin Film and Thick Film Techniques
• Differentiate between:
o Thin film IC fabrication
o Thick film IC fabrication
• Compare:
o Cost
o Accuracy
o Reliability
T3: Differential Amplifier Analysis
• Analyze:
o Differential gain
o Common mode gain
o CMRR
T4: Inverting and Non-Inverting Amplifiers
• Design amplifier circuits using IC 741.
• Verify gain experimentally.
T5: Summer and Subtractor Circuits
• Design:
o Summing amplifier
o Difference amplifier
• Verify output mathematically.
T6: Integrator and Differentiator
• Build:
o Op-amp integrator
o Op-amp differentiator
• Observe waveform transformation.

Weightage: Continuous Assessment: 40%, End Semester Examinations: 60%.

Assessment Methodology: Assignments (20%), Solution to application-oriented problems using software (20%), Solving of GATE questions (20%), Internal Examinations (40%).

References

1. Roy Choudhury, D., & Jain, S. B. (2018). Linear integrated circuits (5th ed.). Wiley Eastern Ltd.
2. Gayakwad, R. A. (2015). Op-amps and linear integrated circuits (4th ed.). Pearson Education.
3. Botkar, K. R. (2008). Integrated circuits (10th ed.). Hanna Publishers.
4. Millman, J., & Halkias, C. C. (2017). Integrated electronics (2nd ed.). McGraw Hill Education.
5. Driscoll, F. F., & Coughlin, R. F. (1997). Operational amplifiers and linear integrated circuits (4th ed.). Pearson.

E-resources

1. Nptel- Integrated Circuits and Applications – Course
2. MOOCs course link: Introduction to Electronics | Coursera