1、TL/H/7057OpAmpCircuitCollectionAN-31National SemiconductorApplication Note 31February 1978Op Amp Circuit CollectionSECTION 1BASIC CIRCUITSInverting AmplifierVOUTebR2R1VINRINe R1TL/H/70571Non-Inverting AmplifierVOUTeR1 a R2R1VINTL/H/70572Difference AmplifierVOUTe#R1 a R2R3 a R4JR4R1V2bR2R1V1For R1 e
2、R3 and R2 e R4VOUTeR2R1(V2b V1)R1UR2 e R3UR4TL/H/70573For minimum offset errordue to input bias currentInverting Summing AmplifierVOUTebR4#V1R1aV2R2aV3R3JR5 e R1UR2UR3UR4For minimum offset errordue to input bias currentTL/H/70574Non-Inverting Summing Amplifier*RSe 1kfor 1% accuracyTL/H/70575Invertin
3、g Amplifier with 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 AmplifierVOUTeR1 a R2R1VINRINe R3R3 e R1UR2TL/H/70578C1995 National Semiconductor Corporation RRD-B30M115/Printed in
4、 U. S. A.Practical Differentiatorfce12qR2C1fhe12qR1C1e12qR2C2fcm fhm funity gainTL/H/70579IntegratorVOUTeb1R1C1#t2t1VINdtfce12qR1C1R1 e R2For minimum offset error dueto input bias currentTL/H/705710Fast IntegratorTL/H/705711Current to Voltage ConverterVOUTe lINR1*For minimum error due tobias current
5、 R2 e R1TL/H/705712Circuit for Operating the LM101without a Negative SupplyTL/H/705713Circuit for Generating theSecond Positive VoltageTL/H/7057142Neutralizing Input Capacitanceto Optimize Response TimeCNsR1R2CSTL/H/705715Integrator with Bias Current Compensation*Adjust for zero integrator drift.Cur
6、rent drift typically 0.1, n/ACover b55Cto125Ctemperature range.TL/H/705716Voltage Comparator for DrivingDTL or TTL Integrated CircuitsTL/H/705717Threshold Detector for PhotodiodesTL/H/705718Double-Ended Limit DetectorVOUTe 4.6V forVLTs VINs VUTVOUTe 0V forVINk VLTor VINl VUTTL/H/705719Multiple Apert
7、ure Window DiscriminatorTL/H/7057203Offset Voltage Adjustment for Inverting AmplifiersUsing Any Type of Feedback ElementRANGE e gV#R2R1JTL/H/705721Offset Voltage Adjustment for Non-Inverting AmplifiersUsing Any Type of Feedback ElementRANGE e gV#R2R1JGAIN e 1 aR5R4 a R2TL/H/705722Offset Voltage Adju
8、stment for Voltage FollowersRANGE e gV#R3R1JTL/H/705723Offset Voltage Adjustment for Differential AmplifiersR2 e R3 a R4RANGE e gV#R5R4J#R1R1 a R3JGAIN eR2R1TL/H/705724Offset Voltage Adjustment for InvertingAmplifiers Using 10 kX Source Resistance or LessR1 e 2000 R3UR4R4UR3 s 10 kXRANGE e gV#R3UR4R
9、1 J TL/H/7057254SECTION 2 SIGNAL GENERATIONLow Frequency Sine Wave Generator with Quadrature OutputTL/H/705726High Frequency Sine Wave Generator with Quadrature Outputfoe 10 kHzTL/H/7057275Free-Running Multivibrator*Chosen for oscillation at 100 HzTL/H/705728Wein Bridge Sine Wave OscillatorR1 e R2C1
10、 e C2 *Eldema 1869f e12qR1 C110V, 14 mA BulbTL/H/705729Function GeneratorTL/H/705730Pulse Width ModulatorTL/H/7057316Bilateral Current SourceIOUTeR3 VINR1 R5R3 e R4 a R5R1 e R2 TL/H/705732Bilateral Current SourceIOUTeR3 VINR1 R5R3 e R4 a R5R1 e R2TL/H/705733Wein Bridge Oscillator with FET Amplitude
11、StabilizationR1 e R2C1 e C2f e12qR1 C1 TL/H/7057347Low Power Supply for Integrated Circuit TestingTL/H/705735*VOUTe 1V/kXTL/H/705791Positive Voltage ReferenceTL/H/705736Positive Voltage ReferenceTL/H/7057378Negative Voltage ReferenceTL/H/705738Negative Voltage ReferenceTL/H/705739Precision Current S
12、inkIOeVINR1VINt 0VTL/H/705740Precision Current SourceTL/H/705741SECTION 3 SIGNAL PROCESSINGDifferential-Input Instrumentation AmplifierR4R2eR5R3AVeR4R2TL/H/7057429Variable Gain, Differential-Input Instrumentation Amplifier*Gain adjustAVe 10b4R6TL/H/705743Instrumentation Amplifier with g100 Volt Comm
13、on Mode RangeR3 e R4R1 e R6 e 10R3AVeR7R6*Matching determines commonR1 e R5 e 10R2mode rejection.R2 e R3TL/H/70574410Instrumentation Amplifier with g10 Volt Common Mode RangeR1 e R4R2 e R5R6 e R7*Matching Determines CMRRAVeR6R2#1 a2R1R3 JTL/H/705745High Input Impedance Instrumentation AmplifierR1 e
14、R4; R2 e R3AVe 1 aR1R2*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 supply bypassingunnecessary.Trim for best commonmode rejectionGain adjustTL/H/70574711Bridge Amplifie
15、rR1RS1eR2RS2VOUTe Va#1 bR1RS1 JTL/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 AC to DC Converter*Feedforward compensation can be used to make a fast full wave rectifier with
16、out a filter. TL/H/705752Low Drift Peak DetectorTL/H/70575312Absolute Value Amplifier with Polarity DetectorVOUTeblVINlcR2R1R2R1eR4 a R3R3TL/H/705754Sample and Hold*Polycarbonate-dielectric capacitorTL/H/705755Sample and Hold*Worst case drift less than 2.5 mV/secTeflon, Polyethylene or Polycarbonate
17、Dielectric 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 over b55Ctoa125C.FastSumming Amplifier with Low Input CurrentTL/H/705758* In addition to increasing speed, the LM101A raises high and low
18、frequencygain, increases output drive capability and eliminates thermal feedback. Power Bandwidth: 250 kHzSmall Signal Bandwidth: 3.5 MHzSlew Rate: 10V/ms C5 e6 c 10b8Rf14Fast Integrator with Low Input CurrentTL/H/705759Adjustable Q Notch FilterfOe12qR1C1e 60 HzR1 e R2 e R3C1 e C2 e C23 TL/H/7057601
19、5Easily Tuned Notch FilterR4 e R5R1 e R3R4 e (/2 R1fOe12qR40C1C2TL/H/705761Tuned CircuitfOe12q0R1R2C1C2TL/H/705762Two-Stage Tuned CircuitfOe12q0R1R2C1C2TL/H/70576316Negative Capacitance MultiplierC eR2R3C1ILeVOSa R2 IOSR3RSeR3(R1 a RIN)RINAVOTL/H/705765Variable Capacitance MultiplierC e#1 aRbRa JC1T
20、L/H/705766Simulated InductorL t R1 R2 C1RSe R2RPe R1TL/H/705767Capacitance MultiplierC eR1R3C1ILeVOSa IOSR1R3RSe R3TL/H/70576817High Pass Active FilterTL/H/705771*Values are for 100 Hz cutoff. Use metalized polycarbonate capacitors for good temperature stability.Low Pass Active FilterTL/H/705772*Val
21、ues 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 FeedbackTL/H/705775Power BoosterTL/H/70577619Anal
22、og MultiplierR5 e R1#Vb10 JV1t 0VOUTeV1V210TL/H/705777Long Interval Timer*Low leakage b0.017 mF per second delayTL/H/705778Fast Zero Crossing DetectorTL/H/705779Propagation delay approximately 200 nsDTL or TTL fanout of three.Minimize stray capacitancePin 8Amplifier for Piezoelectric TransducerLow f
23、requency cutoff e R1 C1TL/H/705780Temperature Probe*Set for 0V at 0CAdjust for 100 mV/CTL/H/70578120Photodiode AmplifierVOUTe R1 IDTL/H/705782Photodiode AmplifierVOUTe 10 V/mATL/H/705783*Operating photodiode with less than 3 mVacross it eliminates leakage currents.High Input Impedance AC FollowerTL/
24、H/705784Temperature Compensated Logarithmic Converter1kX(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 nA k IINk 1mASensitivity is 1V per decade21RootExtractor*2N3728matchedpairsTL/H/
25、70578622Multiplier/DividerTL/H/705787Cube GeneratorTL/H/70578823AN-31OpAmpCircuitCollectionFast Log Generator1kX(g1%) at 25C, a3500 ppm/C.Available from Vishay Ultronix,Grand Junction, CO, Q81 Series.TL/H/705789Anti-Log Generator1kX(g1%) at 25C, a3500 ppm/C.Available from Vishay Ultronix,Grand Junct
26、ion, 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. Life support devices or systems are d
27、evices or 2. A critical component is any component of a lifesystems which, (a) are intended for surgical implant support device or system whose failure to perform caninto the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the lifefailure to perform, wh
28、en properly used in accordance support device or system, or to affect its safety orwith instructions for use provided in the labeling, can effectiveness.be reasonably expected to result in a significant injuryto the user.National Semiconductor National Semiconductor National Semiconductor National S
29、emiconductorCorporation Europe Hong Kong Ltd. Japan Ltd.1111 West Bardin Road Fax: (a49) 0-180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2309Arlington, TX 76017 Email: Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408Tel: 1(800) 272-9959 Deutsch Tel: (a49) 0-180-530 85 85 Tsimshatsui, Kow
30、loonFax: 1(800) 737-7018 English Tel: (a49) 0-180-532 78 32 Hong KongFran3ais Tel: (a49) 0-180-532 93 58 Tel: (852) 2737-1600Italiano Tel: (a49) 0-180-534 16 80 Fax: (852) 2736-9960National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
