SYLLABUS. osmania university UNIT - I UNIT - II UNIT - III CHAPTER - 4 : OPERATIONAL AMPLIFIER

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1 Contents i SYLLABUS osmania university UNIT - I CHAPTER - 1 : DIFFERENTIAL AMPLIFIERS Classification, DC and AC Analysis of Single/Dual Input Balanced and Unbalanced Output Configurations using BJTs. Level Translator. CHAPTER - 2 : OPERATIONAL AMPLIFIER Ideal, Practical, General (741) Bipolar Operational Amplifier, AC and DC Performance Characteristics, Frequency Compensation, Open-Loop and Closed-loop Configurations, 741 Manufacturers Data Sheet-description, Specifications and Package. UNIT - II CHAPTER - 3 : OPERATIONAL AMPLIFIER APPLICATIONS : LINEAR Linear-adder, Subtractor, Integrator, Differentiator, Voltage to Current Converter-Current to Voltage Converter, Differential Amplifiers, Instrumentation Amplifiers Based on Two and Three Opamps. Ideal and Practical Integrator, Differentiator, Log and Antilog Amplifier, Single Supply Operation Commercial Instrumentation Amplifier AD623, Programmable Gain Amplifiers (PGA) AD526. UNIT - III CHAPTER - 4 : OPERATIONAL AMPLIFIER APPLICATIONS NON-LINEAR Comparator, Schmitt Trigger, Precision Rectifier, Peak Detector, Clippers, Clampers, Sample and Hold Circuits. Active Filters Introduction - First Order, Second Order Active Filters - LP, HP, BP, BR and All Pass. V to I and I to V Converters.

2 ii Contents UNIT - IV CHAPTER - 5 : WAVEFORM GENERATORS Sine Wave, Saw Tooth, Triangular Wave, Voltage Controlled Oscillators, PLL; V to F and F to V Converters. Function Generator - XR2206. UNIT - V CHAPTER - 6 : VOL OLTAGE REGULATORS Linear Regulators using Opamp, IC Regulators 78xx and 723. CHAPTER - 7 : DATA A CONVERTERS Introduction, Basic Digital to Analog Converter Techniques, Weighted Resistor DAC, Inverted R-2R Ladder DAC. Analog to Digital Converter : Types, Parallel Comparator ADC, Successive Approximation ADC and Dual Slope ADC. DAC and ADC Specifications.

3 Contents iii linear integrated circuits and applications FOR b.e. (o.u) Iii year i semester (ELECTRONICS AND COMMUNICATION ENGINEERING) CONTENTS UNIT - I [CH. H. - 1] ] [DIFFERENTIAL AMPLIFIERS] INTRODUCTION Classification of ICs Fabrication Technologies of an IC Advantages of ICs Chip Size and Circuit Complexity Integrated Circuit Package Types Manufactures Designations for ICs DIFFERENTIAL AMPLIFIERS Differential Gain (A d ) Common Mode Gain (A c ) Common Mode Rejection Ratio (CMRR) Features of Differential Amplifier Solved Problems Operation of Differential Amplifier Transfer Characteristics of Differential Amplifier

4 iv Contents 1.3 CLASSIFICATION OF DIFFERENTIAL AMPLIFIER DC ANALYSIS OF DIFFERENTIAL AMPLIFIER AC ANALYSIS OF DIFFERENTIAL AMPLIFIER Dual Input Balanced Output Differential Amplifier Differential Mode Analysis Differential Input Resistance (R id ) Common Mode Analysis Common Mode Input Resistance (R ic ) Small Signal CMRR Dual Input Unbalanced Output Differential Amplifier Differential Mode Analysis Differential Input Resistance (R id ) Common Mode Analysis Small Signal CMRR Solved Problems Single Input Balanced / Unbalanced Output Differential Amplifier DIFFERENTIAL AMPLIFIER WITH CONSTANT CURRENT BIAS Temperature Compensation Constant-Current Source Using Zener Diode Solved Problems CURRENT MIRROR CIRCUIT Circuit Analysis Solved Problems

5 Contents v Modified Current Mirror Solved Problems DIFFERENTIAL AMPLIFIER USING FET LEVEL TRANSLATOR / LEVEL SHIFTER Short Questions and Answers Expected University Questions with Solutions UNIT - I [CH. H. - 2] ] [I] OPERATIONAL AMPLIFIER Op-Amp Basics Circuit Symbol Equivalent Circuit of a Practical Op-Amp Pin Configuration of an Op-Amp Op-Amp Configurations OP-AMP BLOCK DIAGRAM IDEAL OP-AMP Characteristics of an Ideal Op-Amp Ideal Voltage Transfer Curve Virtual Ground Concept Op-Amp Parameters arameters GENERAL (741) BIPOLAR OPERATIONAL AMPLIFIER Features Internal Shcematic Ideal Vs Practical Characteristics of IC 741 Op-Amp Classes of Op-Amp IC Effect of Time on Input Offset Voltage and Input Offset Current

6 vi Contents 2.5 DC CHARACTERISTICS CTERISTICS OF AN OP-AMP Input Bias Current Input Offset Current Input Offset Voltage oltage Thermal Drift Solved Problems AC CHARACTERISTICS CTERISTICS OF AN OP-AMP Frequency Response Stability of an Op-Amp FREQUENCY COMPENSATION External Compensation Dominant Pole ole Compensation Pole ole Zero Compensation Feed Forward Compensation Internal Compensation Miller Effect Compensation OP-AMP IC741 AND ITS FEATURES Op-Amp Characteristics of LM741 and LM741C Features Short Questions and Answers Expected University Questions with Solutions

7 Contents vii UNIT - II [CH. H. - 3] ] [OPERATIONAL AMPLIFIER APPLICATIONS : LINEAR] INTRODUCTION ADDER SUBTRACT CTOR Solved Problem DIFFERENTIATOR OR Ideal Op-Amp Differentiator Analysis of Ideal Op-Amp Differentiator Frequency Response of an Ideal Differentiator Input and Output Waveforms for Differentiator Limitations of an Ideal Differentiator Practical Differentiator Analysis of Practical Differentiator Frequency Response of a Practical Differentiator Guidelines to Design Practical Differentiator Applications of Practical Differentiator Solved Problems INTEGRATOR OR Ideal Op-Amp Integrator Analysis of an Ideal Op-Amp Integrator Frequency Response of an Ideal Integrator Input and Output Waveforms for Integrator Limitations of an Ideal Integrator

8 viii Contents Practical Integrator Analysis of Practical Integrator Frequency Response of a Practical Integrator Applications of a Practical Integrator Solved Problems VOLTAGE TO CURRENT CONVERTERS (V - I) V to I Converter With Floating Load V to I Converter With Grounded Load Applications of V-I Converter Low Voltage DC Voltmeter Low ow Voltage AC C Voltmeter Diode Tester and Match Finder Zener Diode Tester CURRENT TO O VOL OLTAGE GE CONVERTERS (I - V) Applications of I-V V Converter Photodiode Detector Photo FET Detector DIFFERENCE AMPLIFIER INSTRUMENTATION TION AMPLIFIER Three Op-Amp Instrumentation Amplifier Instrumentation Amplifier Using a Transducer Bridge Monolithic Instrumentation Amplifier Applications of Instrumentation Amplifier Temperature Controller Temperature Indicator Light Intensity Meter Analog Weight Scale Solved Problems

9 Contents ix 3.9 LOGARITHMIC AMPLIFIERS Realization of Logarithmic Amplifier Using Diode Realization of Logarithmic Amplifier Using Transistor (Transdiode Configuration) Drawbacks of Basic Logarithmic Amplifier Temperature Compensated Logarithmic Amplifier Using Diode Temperature Compensated Logarithmic Amplifier Using Transistor Disadvantages of Temperature Compensated Logarithmic Amplifier Modified Temperature Compensated Logarithmic Amplifier Stability Considerations Applications of Log Amplifier Solved Problems ANTILOGARITHMIC AMPLIFIER Realization of Antilogarithmic Amplifier Using Diode Realization of Antilogarithmic Amplifier Using Transistor Disadvantages of Basic Antilogarithmic Amplifier Temperature Compensated Antilog Amplifier Using Diode Temperature Compensated Antilog Amplifier Using Transistor Solved Problems SINGLE SUPPLY OPERATION COMMERCIAL INSTRUMENTATION TION AMPLIFIER AD General Description Pin Configuration and Function Descriptions Theory of Operation Applications Information

10 x Contents Basic Connection Gain Selection Reference Terminal Input and Output Offset Voltage Error Input Protection RF Interference Grounding Ground Returns for Input Bias Currents Output Buffering Single-Supply Data Acquisition System Amplifying Signals with Low Common-Mode Voltage PROGRAMMABLE GAIN AMPLIFIERS (PG A)-AD Programmable Gain Amplifiers (PGAs) PGA Applications Programmable Gain Amplifiers (PGAs) PGA Design Issues How Not to Build a PGA Alternate Configuration Makes R on Negligible AD526 Monolithic Software Programmable PGA AD526 PGA Key Features Short Questions and Answers Expected University Questions with Solutions

11 Contents xi UNIT - III [CH. H. - 4] ] [OPERATIONAL AMPLIFIER APPLICATIONS NON-LINEAR] INTRODUCTION COMPARA ARATORS Non-Inverting Comparator Inverting Comparator Comparator Characteristics Applications of Comparator Schmitt Trigger Without Reference Voltage (Zero Crossing Detector) Window Detector Phase Detector SCHMITT TRIGGER WITH REFERENCE VOLTAGE GE (REGENERATIVE COMPARA ARATOR) Inverting Schmitt Trigger Non-Inverting Schmitt Trigger rigger Hysteresis Applications of Schmitt Trigger Schmitt Triggers for Eliminating Comparator Chatter Schmitt Triggers in ON / OFF Controllers Comparison of Comparator and Schmitt Trigger Solved Problems PRECISION RECTIFIER Halfwave Precision Rectifier Improved Halfwave Precision Rectifier Full Wave Precision Rectifier ectifier Alternative Fullwave precision Rectifier

12 xii Contents 4.5 PEAK DETECTORS CLIPPER Positive Clippers Negative Clippers CLAMPER SAMPLE AND HOLD CIRCUIT Performance Characteristics Monolithic S/H Integrated Circuits Fast S/H ICs Advantages of Sample and Hold Circuit Applications of Sample and Hold Circuit ACTIVE FILTER TER Butterworth Filter Bessel Filter Chebyshev Filter FIRST ORDER LOW PASS BUTTERWORTH TH FILTER Analysis of the Filter Circuit Design Procedure (or) Design Steps Frequency Scaling FIRST ORDER HIGH PASS BUTTERWORTH TH FILTER Analysis of the Filter Circuit Design Procedure (or) Design Steps SECOND ORDER ACTIVE FILTER MODEL Second Order Low Pass Butterworth Filter ilter Analysis of the Filter Circuit Design Procedure

13 Contents xiii Second Order High Pass Butterworth Filter Analysis of the Filter Circuit Design Procedure (Design Steps) BAND PASS FILTERS TERS Wide Band-Pass ass Filter Narrow Band Pass Filter BAND REJECTION FILTERS Wide Band Reject Filter Narrow Band Reject Filter (Notch Filter) ALL PASS FILTER Short Questions and Answers Expected University Questions with Solutions UNIT - IV [CH. - 5] ] [WAVEFORM GENERATORS] INTRODUCTION SINE WAVE VE GENERATOR OR [OSCILLATORS] ORS] RC Phase Shift Oscillator Wien Bridge Oscillator Wien Bridge Oscillator using Op-Amp Quadrature Oscillator Function Generator TRIANGULAR WAVE VE GENERATOR OR Another Triangular Wave Generator SAW TOO OOTH WAVE GENERATOR VOL OLTAGE CONTROLLED OSCILLATOR OR [VCO] Voltage Controlled Oscillator IC Operation Voltage oltage-to -to-f -Frequency Conversion Factor actor

14 xiv Contents Features of 566 VCO Applications of 566 VCO Ramp Generator PHASE LOCKED LOOP (PLL) Basic Principles Definitions Related to PLL Monolithic Phase Locked Loop Derivation of Lock ock-in Range Derivation of Capture Range Phased Locked Loop Applications Frequency Multiplication/Division Frequency Translation AM Detection FM Demodulation Frequency Shift Keying (FSK) Demodulator FM Detector FM Synthesiser V/F AND F/V CONVERTER DEVICE TC Features Voltage oltage-to -to-f -Frequency requency Frequency requency-to -to-voltage oltage Pin Diagram of TC IC 9400 As V/F Converter TC 9400 As F/V Converter FUNCTION GENERATOR - XR Short Questions and Answers Expected University Questions with Solutions

15 Contents xv UNIT - V [CH. H. - 6] ] [VOLTAGE REGULATORS] INTRODUCTION PERFORMANCE PARAMETERS FOR VOL OLTAGE REGULATORS ORS CLASSIFICATION OF VOL OLTAGE GE REGULATORS ORS Series Voltage Regulators Block Diagram of Series Voltage Regulators egulators Series Voltage Regulator using Op-Amp Advantages of Series Voltage Regulators egulators Disadvantages of Series Voltage Regulator Shunt Voltage Regulators Block Diagram of Shunt Voltage Regulator Shunt Voltage Regulator using Op-Amp Amp Comparison between Shunt and Series Voltage Regulators LINEAR VOL OLTAGE GE REGULATORS ORS Fixed Voltage Regulators Fixed Positive Voltage Regulators Fixed Negative Voltage Regulators Applications of IC 78 XX and 79 XX as a 0.5 A Current Source Current Boosting Fixed Regulator used as Adjustable Voltage Regulators Adjustable Voltage Regulator using 78 xx Adjustable Positive Voltage Regulators egulators Adjustable Negative Voltage Regulators Dual Supply

16 xvi Contents Dual Voltage Regulator egulator Dual-tracking regulator General Purpose Regulator (Adjustable or Variable Voltage Regulator) Fundamental Block Diagram of IC Features of IC Specifications of IC Applications of IC Low ow-voltage oltage Regulator using High-Voltage Regulator using Current Limit Protection (or) Current Sensing Protection Current Foldback Current Boosting SWITCHING REGULATORS Basic Switching Regulator Fundamental Block Diagram of Switching Regulator Types of Switching Regulators Step-Down Switching Regulator (Buck Type Switching Regulator) Step-Up Switching Regulator (Boost Type Switching Regulator) Voltage Inverter Type Switching Regulator (Buck-Boost Type Switching Regulator) Advantages of Switching Regulators Disadvantages of Switching Regulators

17 Contents xvii Applications of Switching Regulators Monolithic Switching Regulators COMPARISON BETWEEN SWITCHING REGULATOR OR SMPS AND LINEAR REGULATOR HYBRID (COMBINATION) REGULATOR Short Questions and Answers Expected University Questions with Solutions UNIT - V [CH. H. - 7] ] [DATA CONVERTERS] INTRODUCTION D / A CONVERTERS DAC Specifications Basic DAC C Techniques echniques Binary Weighted Resistor DAC R-2R Ladder DAC Inverted R-2R Ladder DAC Multiplying DAC Sources of Errors in DAC Monolithic DAC A / D CONVERTERS ADC Specifications Different Types of ADCs Single Ramp (or) Single Slope ADC Dual Slope ADC Successive Approximation ADC Parallel Comparator (or) Flash ADC

18 xviii Contents Counter Type ADC Servo Tracking ADC Monolithic ADC ADC 0803 Family ADC 0808 / 0809 Family IC Comparison of Flash, Successive Approximation Technique and Dual Slope Short Questions and Answers Expected University Questions with Solutions

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