LESSON PLAN. SUBJECT: LINEAR IC S AND APPLICATION NO OF HOURS: 52 FACULTY NAME: Mr. Lokesh.L, Hema. B DEPT: ECE. Portions to be covered

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1 LESSON PLAN SUBJECT: LINEAR IC S AND APPLICATION SUB CODE: 15EC46 NO OF HOURS: 52 FACULTY NAME: Mr. Lokesh.L, Hema. B DEPT: ECE Class# Chapter title/reference literature Portions to be covered MODULE I - Operational Amplifier Fundamentals 1 2 T2, chapter 1-1.2,chapter2-2.5,chapter3-3.6 Basic op-amp circuit, parameters-i/p and o/p voltage CMRR&PSRR, offset voltages & current, I /P & O/P impedances 3 Slew rate & Frequency limitations, opamps as DC amplifiers 4 Biasing op-amps, direct coupled voltage followers, 5 Non inverting,inverting, difference summing amplifier 6-7 Problems MODULE II - Op-Amps as AC Amplifiers 8 T1, chapter 4 Capacitor coupled voltage follower, High input impedance-capacitor coupled voltage follower, 9 Capacitor coupled non-inverting amplifiers, High input impedance- Capacitor coupled non inverting amplifier 10 Capacitor coupled inverting amplifier, setting the upper cut off frequency 11 Capacitor coupled difference amplifier 12 Use of a single polarity supply Problems MODULE III Op-Amps Applications % Of portions covered Ref Cumu chap lative T1, chapter 6- Current amplifiers, instrumentation 6.1,6.2,6.4,6.8 amplifiers Chapter 7- Precision rectifiers, Limiting circuits ,7.2,7.3 problems

2 More applications T1, chapter 7-7.4,7.5,7.6 Chapter T2,chapter 4.5,4.8,4.9 Clamping circuits, peak detectors, sample & hold circuits V to I & I to V converters, Log and antilog amplifiers Multiplier and divider wave generators 30 Triangular/Rectangular wave generators Wave form generator design, phase shift oscillator 33 Wein bridge oscillator 34 Problems MODULE IV -Non linear circuit application 35 T1, chapter 9- Crossing detectors 36,37 9.2,9.3,9.5,9.6 Inverting Schmitt trigger circuit 38,39 Chapter 11- Monostable and astable multivibrator ,11.3,11.4,11.5 Active filter 41, 42 First order and second order low pass filter 43 High pass filter 44 Problems MODULE V - Voltage regulators& other linear IC application T2, chapter 6 chapter chapter chapter Introduction, Series Op-amp,IC voltage regulator 723 general purpose, switching regulator Basic 555 timer circuit,555timer as astable & monostable multivibrator 51 PLL operating principles, Schmitt trigger, phase detector/comparator VCO 52 Basic DAC techniques, D/A & A/D converters, AD converters Book type Code Title and Author Publication information Edition Publication Year Text T1 Operational Amplifiers and Linear IC s -David A.Bell 2nd PHI 2004 Text T2 Linear Integrated circuits - D.Roy Choudhury & shail B.Jain Reference R1 Op- Amps and Linear Integrated circuit s - Ramakant A.Gayakwad Reference R4 Design with Op-Amps & analog IC s- Sergio Franco 2nd New age international th PHI rd TMH 2005

3 Questions Module I : Operational amplifiers fundamentals 1. What is an op-amp? Draw the basic circuit of an op-amp 2. Briefly discuss the input bias current, input impedance, output impedance and voltage gain of op-amp 3. Explain the limitations on input and output voltage range of an operational amplifier with necessary circuit diagram 4. Explain common mode voltage, common mode voltage gain and common mode rejection ratio for op-amp 5. Discuss supply voltage rejection in op-amp and state a typical supply voltage rejection ratio 6. Explain the input offset voltage and state typical offset voltage level for an opamp 7. Explain the input offset current and state typical offset current level for an opamp 8. Write the equation for input and output impedance of an op-amp using negative feedback 9. Sketch an illustration to show the effect of operational amplifier slew rate and explain. 10. Explain why the two input terminals of op-amp should be equal in value 11. Sketch an op-amp voltage follower with a potential divider biasing and explain 12. Draw the circuit of direct coupled voltage follower and how the value of feedback resistor should be determined. 13. Draw the circuit of two input inverting summing amplifier and difference amplifier explain the operation. Module II : Op-amps as AC amplifiers 1. Explain the operation of high input impedance capacitor coupled voltage follower. Prove that its Zin is ideally very large. 2. Sketch the circuit of capacitor coupled non-inverting amplifier and explain the operation 3. Develop the equation for Z in for a high input impedance capacitor coupled noninverting amplifier 4. Write the equations for calculating the capacitance values for a capacitor coupled inverting amplifier 5. Explain the operation of capacitor coupled inverting amplifier and define its input impedance 6. Briefly discuss the upper cutoff frequency for an op-amp circuit and show how it can be set for inverting, non-inverting and difference amplifier 7. Sketch the circuit of capacitor coupled difference amplifier and explain how to determine capacitor values 8. Sketch circuit of high input impedance capacitor coupled voltage follower using single polarity supply and explain. 9. Sketch the circuit of capacitor coupled non-inverting amplifier using single polarity supply and explain. 10. Sketch the circuit of capacitor coupled inverting amplifier using single polarity supply and explain. Module III: Op-amp applications 1. Draw the circuit of precision voltage source using op-amp and zener diode. Explain the circuit operation and derive equation relating Vo and Vz

4 2. Explain the circuit of current source for floating load and grounded load using op-amp and bipolar transistor 3. Sketch a current sink circuit using BJT & MOSFET, show typical voltage levels and explain its operation 4. Draw the circuit of current amplifier with a floating load and explain its operation 5. Explain the circuit of differential input and output amplifier and derive the equation for differential voltage gain 6. Discuss the advantage of a precision rectifier over ordinary diode circuit 7. Sketch the circuit of non-saturating half wave precision rectifier draw the i/p & o/p waveforms and explain the operations 8. Draw the circuit of high input impedance full-wave precision rectifier and explain with the appropriate equations 9. Sketch a zener diode peak clipper circuit with the adjustable output voltage limit. Explain the operation and the equation for upper and lower limit of o/p voltage 10. Explain what a dead zone circuit does. Sketch an op-amp dead zone circuit, show the waveform and explain its operation. 11. Draw the circuit of an instrumentation amplifier and derive and expression for the gain. More application 1. Sketch an op-amp precision clamping circuit, draw the input and output waveforms, explain the operation. 2. Draw an op-amp precision rectifier peak detector circuit, draw the input and output waveforms, explain the operation 3. Explain the voltage follower type peak detector with the corresponding circuit 4. Draw an op-amp sample and hold circuit, sketch the signal, control and output voltage waveforms 5. Explain the circuit of triangular/rectangular waveforms generator and draw the waveforms 6. Draw the circuit of RC phase shift oscillator. Sketch the output and feedback voltage and explain the operation. 7. State Barkhausen criteria and explain how it is fulfilled in the phase shift oscillator 8. Discuss the design procedure for Wein bridge oscillator and show how the diodes may be used for output amplitude stabilization. 9. Draw the circuit of voltage to current converter if the load is floating and grounded and explain Draw the circuit of log amplifiers using two op-amps and explain its operation Draw and explain an op-amp sample and hold circuit with signal, control and output waveforms. Module IV :Non-linear circuit applications 1. Sketch the circuit of op-amp employed as non-inverting zero crossing detector and briefly explain the input and output waveforms 2. Draw the circuit of capacitor coupled zero crossing detector, show the waveform and explain its operation 3. Draw an op-amp inverting Schmitt trigger circuit, explain its operation by sketching its input and output waveforms 4. Explain the circuit of op-amp astable multivibrator. show the voltage waveform at various points in the circuit 5. Explain the circuit of op-amp monostable multivibrator. show the voltage

5 waveform at various points in the circuit 6. Explain the circuit of first order low pass and high pass filter with its frequency response 7. Discuss the circuit design procedure for first order active high pass filter 8. Explain the circuit of second order low pass and high pass filter with its frequency response 9. Using 741 op-amp design a first order active low pass filter to have a cut off frequency of 1khz Design a second order low pass filter to have a cut off frequency of 5khz. What are the advantages of active filters over passive filters? Module 5 : Voltage regulator & other linear application 1 Explain the function of voltage regulator and series regulated power supply using discrete components 2 List and explain the characteristics of three terminal IC regulator 3 Explain how the fixed regulator used as adjustable regulator 4 Draw the functional diagram of 723 regulator and explain its operation 5 Explain the current limiting feature of 723 regulator 6 Explain current fold back characteristics 7 What is the principle of switch mode power supplies? Discuss its advantages and disadvantages 8 Draw and explain the functional diagram of 555 timer 9 Derive the expression of time delay of a Monostable multivibrator 10 Discuss some application of timer in Monostable mode 11 How is an Astable Multivibrator connected into pulse position modulator? 12 Explain the circuit of Schmitt trigger using 555 timer 13 Explain different types of resistive techniques used in digital to analog converter 14 Explain parallel comparator A/D converter with its circuit 15 Explain the operating principle of PLL 16 Explain the phase detector of PLL with its VCO output waveform 17 Explain the operation of voltage controlled oscillator 18 Briefly explain the standard representation / configuration of 78XX type regulators 19 Briefly explain the working of a 4-bit binary weighted resistor DAC. 20 Explain the functional diagram of dual slope ADC and show the integrated output waveform. 21 Define lock-in range and capture range with reference to PLLS. 22 Explain the operation of a successive approximation ADC using a simplified block-diagram. 23 Explain the terms line regulation, load regulation and ripple rejection for a dc voltage regulator. 24 Explain the following with neat diagrams and waveforms Dual-slope ADC. R-2R ladder DAC.

LINEAR IC APPLICATIONS

LINEAR IC APPLICATIONS 1 B.Tech III Year I Semester (R09) Regular & Supplementary Examinations December/January 2013/14 1 (a) Why is R e in an emitter-coupled differential amplifier replaced by a constant current source? (b)