LAB MANUAL - vvitengineering

1 EC6412 LINEAR INTEGRATED CIRCUITS LABORATORY1 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGD harmapuri 636 703 Regulation: 2013 ECEYear & Semester: II Year / IV SemesterLAB MANUALEC6412-LINEAR INTEGRATED CIRCUIT LABORATORYEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY2 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGANNA UNIVERSITY: CHENNAIREGULATION 2013EC6412 LINEAR INTEGRATED CIRCUITS LABORATORYLIST OF EXPERIMENTS:DESIGN AND TESTING , Non inverting and Differential and low-pass, High-pass and band-pass and Schmitt Trigger using shift and Wein bridge oscillators using and monostablemultivibrators using NE555 characteristics and its use as Frequency power supply using LM317 and of USING of Experiments 3, 4, 5, 6 and and A/D converters (Successive approximation)

2 Inverter, NAND and NORTOTAL-45 PERIODSEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY3 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION OF THE EXPERIMENTSIGNATUREOF THESTAFFREMARKS1 INVERTING&NON-INVERTINGAMPLIFIERSUSINGOP -AMP2 DIFFERENTIAL AMPLIFIERS USINGOP-AMP3 INTEGRATOR AMPLIFIER5 ASTABLE, TRIGGER USINGOP-AMP7 RCPHASESHIFT AND WEIN BRIDGEOSCILLATOR USINGOPAMPP8 ACTIVELOWPASS, HIGH AND MONOSTABLEMULTIVIBRATOR USING IC555 TIMER10 PLL CHARACTERISTICSANDFREQUENCYMULTIPLIERUSI NGPLLEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY4 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION OF THE EXPERIMENTSIGNATUREOF THESTAFFREMARKS11 DCPOWER SUPPLY USING LM31712 DCPOWER SUPPLY USING LM72313 STUDY OFSMPS14 SIMULATION OF INSTRUMENTATIONAMPLIFIER USING PSPICE15 SIMULATION OF ACTIVELOWPASS, HIGH PASSAND BAND PASSFILTER USING PSPICE16 SIMULATION OFASTABLE.

3 MONOSTABLEMULTIVIBRATOR &SCHMITT TRIGGER USINGPSPICE17 SIMULATION OF RCPHASESHIFT ANDWEIN BRIDGE OSCILLATOR USINGPSPICE18 SIMULATION OF ASTABLE ANDMONOSTABLE MULTI VIBRATOR USINGIC555 TIMER19 SIMULATION OF ADC,DACAND ANALOGMULTIPLIER USING PSPICE20 SIMULATION OF CMOS INVERTER,NANDAND NOR USING PSPICEEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY5 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGINTRODUCTION OF LINEAR CIRCUITA linear circuit is anelectroniccircuitin which, for asinusoidalinput voltageoffrequencyf, any steady-state output of the circuit (thecurrentthrough anycomponent, or thevoltagebetween any two points) is also sinusoidal withfrequency f.

4 Note thatthe output need not bein phasewith the equivalent definition of a linear circuit is that it obeys thesuperpositionprinciple. This means that the output of the circuit F(x) when a linear combinationof signals ax1(t) + bx2(t) is applied to it is equal to the linear combination of theoutputs due to the signals x1(t) and x2(t) applied separately:It is called a linear circuit because the output of such a circuit is alinearfunctionof its inputs. Informally, a linear circuit is one in which theelectroniccomponents' values (such asresistance,capacitance,inductance,gain , etc.)

5 Do notchange with the level of voltage or current in the circuit. Linear circuits areimportant because they can amplify and process electronic signals withoutdistortion. An example of an electronic device that uses linear circuits is circuits are important because they can processanalog signalswithoutintroducingintermodulation distortion. This means that separate frequencies in thesignal stay separate and do not mix, creating new frequencies (heterodynes).EC6412 LINEAR INTEGRATED CIRCUITS LABORATORY6 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGSTUDY OF OP-AMPAn operational amplifier or op-amp is a linear integrated circuit that has avery high voltage gain, high input impedance and low output impedance.

6 Op-amp is basically a differential amplifier whose basic function is to amplify thedifference between two input has five basic terminals, that is, two input terminals, one o/pterminal and two power supply terminals. Pin2 is called the inverting inputterminal and it gives opposite polarity at the output if a signal is applied to it. Itproduces a phase shift of 180obetween input and output. Pin3 is called the non-inverting terminal that amplifies the input signal without inversion, , there isno phase shift or i/p is in phase with o/p. The op-ampusually amplifies thedifference between the voltages applied to its two input terminals.

7 Two furtherterminals pins 7 and 4 are provided for the connection of positive and negativepower supply voltages respectively. Terminals 1 and 5 are used for dc pin 8 marked NC indicates No Connection .Study of op-ampBlock schematic of op-amp124367 8 Non Invertingi/pN/CO/pV+Offset Null5 Offset NullInverting i/pV-IC 741 DiffampDiffampBuffer & leveltranslatorO/pdriver+-V2V1V0EC6412 LINEAR INTEGRATED CIRCUITS LABORATORY7 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGCIRCUIT DIAGRAM-(INVERTING AMPLIFIER):DESIGNPROCEDURE: VO=-I Rf_____ I =Vin/Ri_____ VO=-(Vi/Ri)Rf_____ Gain AV=VO /Vi=-( Rf /Ri)_____-15 V+15 V7 RfCROVinRi2364-15 V+15 V7IC74110K10 KEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY8 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGEx.

8 No:01 DESIGN AND TESTING OF INVERTING AND NON INVERTINGAMPLIFIERSDATE :AIM:To design and test inverting and non invertingamplifiersusingIC A 741 APPARATUS power supply(0-+15)V12 Signal generator(0-3)MHz13 CRO(0-30)MHz14IC A 74115 Resistor10K ,5K 2,1 THEORY:INVERTINGAMPLIFIER:The fundamental component of any analog computer is the operationalamplifier or op-amp and the frequency configuration in which it is used as aninverting amplifier. An input voltage Vinis applied to the input voltage. Itreceives and invertsits polarity producing an output voltage(VO). This sameoutput voltage is also applied to a feedback resistor Rf,which is connected tothe amplifier input analog with amplifier itself has a very high Rf=Rithen Vo=ViEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY9 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGTABULATION (INVERTING AMPLIFIER) SIGNALOUTPUTSIGNALAMPLITUDE(Vi)voltsTIME (T)msAMPLITUDE(Vo)voltsTIME(T)msMODEL GRAPH:EC6412 LINEAR INTEGRATED CIRCUITS LABORATORY10 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGCIRCUIT DIAGRAM (NON INVERTING AMPLIFIER):DESIGN PROCEDURE.

9 Gain Av= Vo/Vi_____= (Rf+Ri) / Ri_____=1+(Rf/ Ri)_____ Vin= (Ri+Rf)_____10k10kEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY11 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGNON-INVERTING AMPLIFIER:Although the standard op-amp configuration is as an invertingamplifier,there are some applications where such inversion is not , wecannot just switch the inverting and non inverting inputs to the amplifier will still need negative feedback to control the working gain of the ,we will need to leave the resistor structure around the op-amp intactand swap the input and ground connections to the overall (Rf/Ri)+1 From the calculations, we can see that the effective voltage gain of the non-invertingamplifier is set by the resistance , if the two resistors areequal value, then the gain will be 2 rather than the circuit as shown in the the input signal as on the dual the outputs from the the necessary waveforms on the graph theaboveprocedure fornon-inverting the practical gain with theoretically designed LINEAR INTEGRATED CIRCUITS LABORATORY12 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGTABULATION (NON-INVERTING AMPLIFIER) SIGNALOUTPUTSIGNALAMPLITUDE(Vi)voltsTIME (T)msAMPLITUDE(Vo)

10 VoltsTIME(T)msMODEL GRAPHRESULT :Thus the inverting and non inverting amplifier circuits using operationalamplifierIc A 741are designed, constructed and LINEAR INTEGRATED CIRCUITS LABORATORY13 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGCIRCUIT DIAGRAM-(DIFFERENTIAL AMPLIFIER)V1V2 DESIGNPROCEDURE: V1=V2=V_____ VC= (V1+V2)/2 =V_____ AC= V0/VC_____CRORfRi2364-15 V+15 V7 RiIC A741Rc10kk10k10kk10kEC6412 LINEAR INTEGRATED CIRCUITS LABORATORY14 VVITDEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERINGEx. No:02 DESIGN OF DIFFERENTIAL AMPLIFIERDATE :AIM:To design and test a differential amplifier using operational amplifierIC A 741 APPARATUS supply(0-+15)V12 Signal generator(0-3)MHz23 CRO(0-30)MHz14IC A 74115 Resistor10K 4 THEORY:A circuit that amplifies the difference between two signals is called as adifferential amplifier.