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**LINEAR INTEGRATED CIRCUITS AND APPLICATIONS (EC1260 )**

EEE Semester-4

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**UNIT I IC FABRICATION IC classification**

Fundamental of monolithic IC technology Epitaxial growth Masking and etching, diffusion of impurities Realisation of monolithic ICs and packaging Fabrication of diodes, capacitance, resistance and FETs

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**Fabrication of NPN Transistor**

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**UNIT II CHARACTERISTICS OF OP-AMP**

Ideal OP - AMP characteristics DC characteristics, AC characteristics , Offset voltage and current. Voltage series feedback and shunt feedback amplifiers. Differential amplifier. Frequency response of OP-AMP. Basic applications of OP-AMP Summer, Differentiator and integrator.

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**UNIT III APPLICATIONS OF OP-AMP**

Instrumentation amplifier First and second order active filters V/I and I/V converters, comparators, multivibrators, waveform generators, clippers, clampers, peak detector, S/H circuit. D/A converter (R – 2R ladder and weighted resistor types) A/D converter (Dual slope – Successive approximation and flash types).

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V/I and I/V converters

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**Successive approximation ADC**

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**UNIT IV SPECIAL ICs 555 Timer circuit. Functional block.**

Characteristics and applications. 566 – Voltage controlled oscillator circuit. 565 – Phase lock loop circuit functioning and applications. Analog multiplier ICs.

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565-PLL & 566-VCO

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UNIT V APPLICATION ICs IC voltage regulators – LM317 – 723 regulators – Switching regulator – MA 7840 LM 380 power amplifier ICL 8038 function generator IC Isolation amplifiers Opto coupler – Opto electronic ICs.

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**Some applications of LM380**

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TEXT BOOKS Ramakant A. Gayakward, “OP-AMPS and Linear Integrated Circuits”, 4th Edition, Pearson Education/Prentice Hall of India, 2000. Roy Choudhary, D. and Sheil B.Jani, “Linear Integrated Circuits”, 2nd Edition, New Age, 2003.

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REFERENCES Jacob Millman, Christos C.Halkias, “Integrated Electronics - Analog and Digital Circuits System”, Tata McGraw Hill, 2003. Robert F. Coughlin, Fredrick F. Driscoll, “OP - AMP and Linear ICs”, 4th Edition, Pearson Education/ Prentice Hall of India, 2002. David A. Bell, “OP-AMP Linear ICs”, 2nd Edition, Prentice Hall of India, 1997.

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**Seminar Topics Fabrication of diodes Integrator Clampers**

Switching regulator

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**Assignment Topics Masking and etching, diffusion of impurities**

Ideal OP – AMP characteristics D/A converter (R – 2R ladder and weighted resistor types) and A/D converter – Dual slope – Successive approximation and flash types. 566 – Voltage controlled oscillator circuit 723 regulators

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