常用运放电路集锦.pdf

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1、TL/H/7057Op Amp Circuit CollectionAN-31National SemiconductorApplication Note 31February 1978Op Amp Circuit CollectionSECTION 1BASIC CIRCUITSInverting AmplifierVOUTe bR2R1VINRINeR1TL/H/70571Non-Inverting AmplifierVOUTeR1aR2R1VINTL/H/70572Difference AmplifierVOUTe#R1aR2R3aR4JR4R1V2bR2R1V1For R1eR3 an

2、d R2eR4VOUTeR2R1(V2bV1)R1UR2eR3UR4TL/H/70573For minimum offset errordue to input bias currentInverting Summing AmplifierVOUTe bR4#V1R1aV2R2aV3R3JR5eR1UR2UR3UR4For minimum offset errordue to input bias currentTL/H/70574Non-Inverting Summing Amplifier*RSe1kfor 1%accuracyTL/H/70575Inverting Amplifier w

3、ith High Input Impedance*Source Impedanceless than 100kgives less than 1%gain error.TL/H/70576Fast Inverting Amplifier with High Input ImpedanceTL/H/70577Non-Inverting AC AmplifierVOUTeR1aR2R1VINRINeR3R3eR1UR2TL/H/70578C1995 National Semiconductor CorporationRRD-B30M115/Printed in U.S.A.基本电路反相同相减法反相

4、加法同相加法Vo=E1+E2高输入阻抗反相放大器同相比例放大高输入阻抗快速反相放大器比例运算电路运放电路集锦Practical Differentiatorfce12qR2C1fhe12qR1C1e12qR2C2fcmfhmfunity gainTL/H/70579IntegratorVOUTe b1R1C1#t2t1VINdtfce12qR1C1R1eR2For minimum offset error dueto input bias currentTL/H/705710Fast IntegratorTL/H/705711Current to Voltage ConverterVOUTel

5、INR1*For minimum error due tobias current R2eR1TL/H/705712Circuit for Operating the LM101without a Negative SupplyTL/H/705713Circuit for Generating theSecond Positive VoltageTL/H/7057142实用微分积分快速积分电流电压转换器Neutralizing Input Capacitanceto Optimize Response TimeCNsR1R2CSTL/H/705715Integrator with Bias C

6、urrent Compensation*Adjust for zero integrator drift.Current drift typically 0.1,n/ACoverb55C to 125Ctemperature range.TL/H/705716Voltage Comparator for DrivingDTL or TTL Integrated CircuitsTL/H/705717Threshold Detector for PhotodiodesTL/H/705718Double-Ended Limit DetectorVOUTe4.6V forVLTsVINsVUTVOU

7、Te0V forVINkVLTor VINlVUTTL/H/705719Multiple Aperture Window DiscriminatorTL/H/7057203双端极限探测器积分与偏置电流补偿电压比较器驱动DTL或TTL集成电路光电二极管阈值检测器多孔径窗口鉴别Offset Voltage Adjustment for Inverting AmplifiersUsing Any Type of Feedback ElementRANGEegV#R2R1JTL/H/705721Offset Voltage Adjustment for Non-Inverting Amplifiers

8、Using Any Type of Feedback ElementRANGEegV#R2R1JGAINe1aR5R4aR2TL/H/705722Offset Voltage Adjustment for Voltage FollowersRANGEegV#R3R1JTL/H/705723Offset Voltage Adjustment for Differential AmplifiersR2eR3aR4RANGEegV#R5R4J#R1R1aR3JGAINeR2R1TL/H/705724Offset Voltage Adjustment for InvertingAmplifiers U

9、sing 10 kX Source Resistance or LessR1e2000 R3UR4R4UR3s10 kXRANGEegV#R3UR4R1JTL/H/7057254使用任何类型的反馈元件的反相放大器的偏移电压调整同相用电压跟随器调整偏移电压差分放大器的偏移电压调整使用10 K源电阻或更少的反相放大器的偏移电压调整SECTION 2 SIGNAL GENERATIONLow Frequency Sine Wave Generator with Quadrature OutputTL/H/705726High Frequency Sine Wave Generator with Qu

10、adrature Outputfoe10 kHzTL/H/7057275信号的产生Free-Running Multivibrator*Chosen for oscillation at 100 HzTL/H/705728Wein Bridge Sine Wave OscillatorR1eR2C1eC2*Eldema 1869fe12qR1 C110V,14 mA BulbTL/H/705729Function GeneratorTL/H/705730Pulse Width ModulatorTL/H/7057316Bilateral Current SourceIOUTeR3 VINR1

11、R5R3eR4aR5R1eR2TL/H/705732Bilateral Current SourceIOUTeR3 VINR1 R5R3eR4aR5R1eR2TL/H/705733Wein Bridge Oscillator with FET Amplitude StabilizationR1eR2C1eC2fe12qR1 C1TL/H/7057347Low Power Supply for Integrated Circuit TestingTL/H/705735*VOUTe1V/kXTL/H/705791Positive Voltage ReferenceTL/H/705736Positi

12、ve Voltage ReferenceTL/H/7057378Negative Voltage ReferenceTL/H/705738Negative Voltage ReferenceTL/H/705739Precision Current SinkIOeVINR1VINt0VTL/H/705740Precision Current SourceTL/H/705741SECTION 3 SIGNAL PROCESSINGDifferential-Input Instrumentation AmplifierR4R2eR5R3AVeR4R2TL/H/7057429信号处理Variable

13、Gain,Differential-Input Instrumentation Amplifier*Gain adjustAVe10b4R6TL/H/705743Instrumentation Amplifier withg100 Volt Common Mode RangeR3eR4R1eR6e10R3AVeR7R6*Matching determines commonR1eR5e10R2mode rejection.R2eR3TL/H/70574410Instrumentation Amplifier withg10 Volt Common Mode RangeR1eR4R2eR5R6eR

14、7*Matching Determines CMRRAVeR6R2#1a2R1R3JTL/H/705745High Input Impedance Instrumentation AmplifierR1eR4;R2eR3AVe1aR1R2*Matching determines CMRRMay be deleted to maximize bandwidthTL/H/705746Bridge Amplifier with Low Noise Compensation*Reduces feed through ofpower supply noise by 20 dBand makes supp

15、ly bypassingunnecessary.Trim for best commonmode rejectionGain adjustTL/H/70574711Bridge AmplifierR1RS1eR2RS2VOUTeVa#1bR1RS1JTL/H/705748Precision DiodeTL/H/705749Precision Clamp*EREFmust have a source im-pedance of less than 200X ifD2 is used.TL/H/705750Fast Half Wave RectifierTL/H/705751Precision A

16、C to DC Converter*Feedforward compensation can be used to make a fast full wave rectifier without a filter.TL/H/705752Low Drift Peak DetectorTL/H/70575312Absolute Value Amplifier with Polarity DetectorVOUTe blVINlcR2R1R2R1eR4aR3R3TL/H/705754Sample and Hold*Polycarbonate-dielectric capacitorTL/H/7057

17、55Sample and Hold*Worst case drift less than 2.5 mV/secTeflon,Polyethylene or PolycarbonateDielectric CapacitorTL/H/70575613Low Drift IntegratorTL/H/705757*Q1 and Q3 should not have internal gate-protection diodes.Worst case drift less than 500 mV/sec overb55C toa125C.FastSumming Amplifier with Low

18、Input CurrentTL/H/705758*In addition to increasing speed,the LM101A raises high and low frequencygain,increases output drive capability and eliminates thermal feedback.Power Bandwidth:250 kHzSmall Signal Bandwidth:3.5 MHzSlew Rate:10V/msC5e6c10b8Rf14Fast Integrator with Low Input CurrentTL/H/705759A

19、djustable Q Notch FilterfOe12qR1C1e60 HzR1eR2eR3C1eC2eC23TL/H/70576015Easily Tuned Notch FilterR4eR5R1eR3R4e(/2 R1fOe12qR40C1C2TL/H/705761Tuned CircuitfOe12q0R1R2C1C2TL/H/705762Two-Stage Tuned CircuitfOe12q0R1R2C1C2TL/H/70576316Negative Capacitance MultiplierCeR2R3C1ILeVOSaR2 IOSR3RSeR3(R1aRIN)RINAV

20、OTL/H/705765Variable Capacitance MultiplierCe#1aRbRaJC1TL/H/705766Simulated InductorLtR1 R2 C1RSeR2RPeR1TL/H/705767Capacitance MultiplierCeR1R3C1ILeVOSaIOSR1R3RSeR3TL/H/70576817High Pass Active FilterTL/H/705771*Values are for 100 Hz cutoff.Use metalized polycarbonate capacitors for good temperature

21、 stability.Low Pass Active FilterTL/H/705772*Values are for 10 kHz cutoff.Use silvered mica capacitors for good temperature stability.Nonlinear Operational Amplifier with Temperature Compensated BreakpointsTL/H/70577318Current MonitorVOUTeR1 R3R2ILTL/H/705774Saturating Servo Preamplifier withRate Fe

22、edbackTL/H/705775Power BoosterTL/H/70577619Analog MultiplierR5eR1#Vb10JV1t0VOUTeV1V210TL/H/705777Long Interval Timer*Low leakageb0.017 mF per second delayTL/H/705778Fast Zero Crossing DetectorTL/H/705779Propagation delay approximately 200 nsDTL or TTL fanout of three.Minimize stray capacitancePin 8A

23、mplifier for Piezoelectric TransducerLow frequency cutoffeR1 C1TL/H/705780Temperature Probe*Set for 0V at 0CAdjust for 100 mV/CTL/H/70578120Photodiode AmplifierVOUTeR1 IDTL/H/705782Photodiode AmplifierVOUTe10 V/mATL/H/705783*Operating photodiode with less than 3 mVacross it eliminates leakage curren

24、ts.High Input Impedance AC FollowerTL/H/705784Temperature Compensated Logarithmic Converter1 kX(g1%)at 25C,a3500 ppm/C.Available from Vishay Ultronix,Grand Junction,CO,Q81 Series.*Determines current for zerocrossing on output:10 mAas shown.TL/H/70578510 nAkIINk1 mASensitivity is 1V per decade21Root

25、Extractor*2N3728 matched pairsTL/H/70578622Multiplier/DividerTL/H/705787Cube GeneratorTL/H/70578823AN-31Op Amp Circuit CollectionFast Log Generator1 kX(g1%)at 25C,a3500 ppm/C.Available from Vishay Ultronix,Grand Junction,CO,Q81 Series.TL/H/705789Anti-Log Generator1 kX(g1%)at 25C,a3500 ppm/C.Availabl

26、e from Vishay Ultronix,Grand Junction,CO,Q81 Series.TL/H/705790LIFE SUPPORT POLICYNATIONALS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORTDEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONALSEMICONDUCTOR CORPORATION.As used herein:1.Lifesup

27、portdevicesorsystemsaredevicesor2.A critical component is any component of a lifesystems which,(a)are intended for surgical implantsupport device or system whose failure to perform caninto the body,or(b)support or sustain life,and whosebe reasonably expected to cause the failure of the lifefailure t

28、o perform,when properly used in accordancesupport device or system,or to affect its safety orwith instructions for use provided in the labeling,caneffectiveness.be reasonably expected to result in a significant injuryto the user.National SemiconductorNational SemiconductorNational SemiconductorNatio

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