Subject Code & Name: EE25C09 – Linear Integrated Circuits
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B.E. Electrical and Electronics Engineering (EEE)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- 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.
Full Unit-wise Syllabus
Note: the official PDF ends the D/A and A/D Converters unit with “Delta-sigma-” (the sentence is cut off); it is reproduced here exactly as printed.
Unit I – 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
Unit II – Operational Amplifier
Basic concepts - differential amplifiers - block diagram-ideal op-amp parameters - Basic op-amp applications Scale changer, Inverting and non- inverting amplifiers, summer and subtractor, Log and antilog amplifiers - multiplier, Divider, differentiator, Integrator. Instrumentation amplifier
Unit III – 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.
Unit IV – Other Linear ICS
IC voltage regulators – Fixed and Variable voltage regulators- 78XX and 79XX series regulators, LM317 voltage regulator -Switching Regulator- 555 timer IC: Astable and Monostable modes – Phase locked loop - Operation, Characteristics & Application.
Unit V – D/A and A/D Converters
weighted resistor and R-2R ladder- A/D converters: Successive approximation, Counter type, Flash type and Delta-sigma-
Tasks
- T1: Classification of Integrated Circuits; Compare: Analog ICs, Digital ICs, Mixed signal ICs; Explain applications of each category
- T2: Thin Film and Thick Film Techniques; Differentiate between: Thin film IC fabrication, Thick film IC fabrication; Compare: Cost, Accuracy, Reliability
- T3: Differential Amplifier Analysis; Analyze: Differential gain, Common mode gain, CMRR
- T4: Inverting and Non-Inverting Amplifiers; Design amplifier circuits using IC 741.; Verify gain experimentally.
- T5: Summer and Subtractor Circuits; Design: Summing amplifier, Difference amplifier; Verify output mathematically.
- T6: Integrator and Differentiator; Build: Op-amp integrator, Op-amp differentiator; Observe waveform transformation.
Course Outcomes (COs)
- CO1: Explain the fabrication, classification, and basic concepts of integrated circuits including op-amps and linear ICs.
- CO2: Analyze and design basic operational amplifier circuits such as inverting, non-inverting, summing, differential, integrator, and differentiator circuits.
- CO3: Design and implement advanced op-amp applications including precision rectifiers, instrumentation amplifiers, and active filters.
- CO4: Understand and apply the working principles of D/A and A/D converters, PLL, and other linear IC applications.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Solution to application-oriented problems using software (20%), Solving of GATE questions (20%), Internal Examinations (40%)
Source: Official Anna University – B.E. Electrical and Electronics Engineering R-2025 Syllabus
Last Updated: October 2026
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