TL/H/7057Op Amp Circuit CollectionAN-31National Semiconductor Application Note 31 February 1978Op Amp Circuit CollectionSECTION 1BASIC CIRCUITS Inverting AmplifierVOUTe bR2 R1VINRINeR1TL/H/70571Non-Inverting AmplifierVOUTeR1aR2 R1VINTL/H/70572Difference AmplifierVOUTe#R1aR2 R3aR4JR4 R1V2bR2 R1V1For R1eR3 and R2eR4VOUTeR2 R1(V2bV1)R1UR2eR3UR4TL/H/70573For minimum offset error due to input bias currentInverting Summing AmplifierVOUTe bR4#V1 R1aV2 R2aV3 R3JR5eR1UR2UR3UR4For minimum offset error due to input bias currentTL/H/70574Non-Inverting Summing Amplifier*RSe1k for 1% accuracyTL/H/70575Inverting Amplifier with High Input Impedance*Source Impedance less than 100k gives less than 1% gain error.TL/H/70576 Fast Inverting Amplifier with High Input ImpedanceTL/H/70577Non-Inverting AC AmplifierVOUTeR1aR2 R1VINRINeR3R3eR1UR2TL/H/70578C1995 National Semiconductor CorporationRRD-B30M115/Printed in U. S. A.Practical Differentiatorfce1 2qR2C1fhe1 2qR1C1e1 2qR2C2fcmfhmfunity gainTL/H/70579IntegratorVOUTe b1 R1C1#t2t1VINdtfce1 2qR1C1R1eR2For minimum offset error due to input bias currentTL/H/705710Fast IntegratorTL/H/705711Current to Voltage ConverterVOUTelINR1*For minimum error due to bias current R2eR1TL/H/705712Circuit for Operating the LM101 without a Negative SupplyTL/H/705713Circuit for Generating the Second Positive VoltageTL/H/7057142Neutralizing Input Capacitance to Optimize Response TimeCNsR1 R2CSTL/H/705715 Integrator with Bias Current Compensation*Adjust for zero integrator drift.Current drift typically 0.1, n/AC overb55C to 125C temperature range.TL/H/705716Voltage Comparator for Driving DTL or TTL Integrated CircuitsTL/H/705717Threshold Detector for PhotodiodesTL/H/705718Double-Ended Limit DetectorVOUTe4.6V forVLTsVINsVUTVOUTe0V forVINkVLTor VINlVUTTL/H/705719Multiple Aperture Window DiscriminatorTL/H/7057203Offset Voltage Adjustment for Inverting Amplifiers Using Any Type of Feedback ElementRANGEegV#R2R1JTL/H/705721Offset Voltage Adjustment for Non-Inverting Amplifiers Using Any Type of Feedback ElementRANGEegV#R2R1JGAINe1aR5 R4aR2TL/H/705722Offset Voltage Adjustment for Voltage FollowersRANGEegV#R3R1JTL/H/705723Offset Voltage Adjustment for Differential AmplifiersR2eR3aR4RANGEegV#R5R4J #R1 R1aR3JGAINeR2 R1TL/H/705724Offset Voltage Adjustment for Inverting Amplifiers Using 10 kX Source Resistance or LessR1e2000 R3UR4R4UR3s10 kXRANGEegV#R3UR4R1JTL/H/7057254SECTION 2 SIGNAL GENERATIONLow Frequency Sine Wave Generator with Quadrature OutputTL/H/705726High Frequency Sine Wave Generator with Quadrature Outputfoe10 kHzTL/H/7057275Free-Running Multivibrator*Chosen for oscillation at 100 HzTL/H/705728Wein Bridge Sine Wave OscillatorR1eR2C1eC2*Eldema 1869fe1 2qR1 C110V, 14 mA BulbTL/H/705729Function GeneratorTL/H/705730Pulse Width ModulatorTL/H/7057316Bilateral Current SourceIOUTeR3 VIN R1 R5R3eR4aR5R1eR2TL/H/705732Bilateral Current SourceIOUTeR3 VIN R1 R5R3eR4aR5R1eR2TL/H/705733Wein Bridge Oscillator with FET Amplitude StabilizationR1eR2C1eC2fe1 2qR1 C1TL/H/7057347Low Power Supply for Integrated Circuit TestingTL/H/705735*VOUTe1V/kXTL/H/705791Positive Voltage ReferenceTL/H/705736Positive Voltage ReferenceTL/H/7057378Negative Voltage ReferenceTL/H/705738Negative Voltage ReferenceTL/H/705739Precision Current SinkIOeVIN R1VINt0VTL/H/705740Precision Current SourceTL/H/705741SECTION 3 SIGNAL PROCESSING Differential-Input Instrumentation AmplifierR4 R2eR5 R3AVeR4 R2TL/H/7057429Variable Gain, Differential-Input Instrumentation Amplifier*Gain adjustAVe10b4R6TL/H/705743Instrumentation Amplifier withg100 Volt Common Mode RangeR3eR4R1eR6e10R3AVeR7 R6*Matching determines commonR1eR5e10R2 mode rejection.R2eR3TL/H/70574410Instrumentation Amplifier withg10 Volt Common Mode RangeR1eR4R2eR5R6eR7*Matching Determines CMRRAVeR6 R2#1a2R1 R3JTL/H/705745High Input Impedance Instrumentation AmplifierR1eR4; R2eR3AVe1aR1 R2*Matching determines CMRRMay be deleted to maximize bandwidthTL/H/705746Bridge Amplifier with Low Noise Compensation*Reduces feed through of power supply noise by 20 dB and makes supply bypassing unnecessary.Trim for best common mode rejectionGain adjustTL/H/70574711Bridge AmplifierR1 RS1eR2 RS2VOUTeVa#1bR1 RS1JTL/H/705748Precision DiodeTL/H/705749Precision Clamp*EREFmust have a source im- pedance of less than 200X if D2 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 without a filter.TL/H/705752Low Drift Peak DetectorTL/H/70575312Absolute Value Amplifier with Polarity DetectorVOUTe blVINlcR2 R1R2 R1eR4aR3 R3TL/H/705754Sample and Hold*Polycarbonate-dielectric capacitorTL/H/705755Sample and Hold*Worst case drift less than 2.5 mV/secTeflon, Polyethylene or Polycarbonate 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 overb55C toa12