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Operational amplifier

An operational amplifier (often op amp, op-amp, or opamp) is a DC-coupled electronic amplifier with a differential input, a (usually) single-ended output voltage, and an extremely high gain. Its name comes from its original use of performing mathematical operations in analog computers. The voltage-feedback opamp (VFOA or VFA, the focus of this article)…

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Component type
Discrete circuit Integrated circuit
Inventor
Karl D. Swartzel Jr.
Pin names
V+ non-inverting input · V− inverting input · Vout output · VS+ positive power supply[nb 1] · VS− negative power supply[nb 1]

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Operation

Characteristics

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Operational amplifier

Nodes108
Edges107
Triples156
Avg. degree1.98
Density0.018519
Components1

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Operational amplifier

Top relations

related to Further reading · 84
Operational amplifier → Active-Filter Cookbook, Albert Rosa, Analog Devices, Analog Integrated Circuits, Analysis, Application, Applications, Applications Alternatives, Art, ASIN B000DZG196, Basics, Bob Pease, Bruce Carter, Burr-Brown, Cambridge, Chapter, Creative Commons, Design, Designing, Don Lancaster
related to External links · 36
Operational amplifier → All About CircuitsLoop Gain, All Op Amps, All This Julie Stuff, Amps, Analog Circuit Performance, And Instrumentation Amplifiers, Anyhow, Basics, Bob Peasewww, Bucknell University, CMRR, Difference Between Operational Amplifiers, Effects, Electronic Design Magazine, George, How, Introduction, Introductory, Linear, Loebe Julie
related to Historical timeline · 19
Operational amplifier → An, Bell Labs, Columbia University, DC-coupled, In, It, Its, John, Karl, Loebe Julie, M9, Ragazzini, SCR-584, Summing Amplifier, Swartzel Jr, Swartzel's, The, This, Throughout World War II
Pin names · 5
Operational amplifier → V+ non-inverting input, Vout output, VS+ positive power supply[nb 1], VS− negative power supply[nb 1], V− inverting input
see also · 4
Operational amplifier → Electronics, Key, LM-series, Operational
Component type · 1
Operational amplifier → Discrete circuit Integrated circuit
Inventor · 1
Operational amplifier → Karl D. Swartzel Jr.

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Important terminology

op amp amps input pages voltage isbn output amplifier circuit ed operational gain design circuits feedback amplifiers integrated negative op-amp

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Operational amplifierComponent typeDiscrete circuit Integrated circuit1.00infobox
Operational amplifierInventorKarl D. Swartzel Jr.1.00infobox
Operational amplifierPin namesV+ non-inverting input1.00infobox
Operational amplifierPin namesV− inverting input1.00infobox
Operational amplifierPin namesVout output1.00infobox
Operational amplifierPin namesVS+ positive power supply[nb 1]1.00infobox
Operational amplifierPin namesVS− negative power supply[nb 1]1.00infobox
edge connectorsinstance ofThese op amps are effectively small circuit boards with packages0.80text
voltage offsetinstance ofThey usually have hand-selected resistors in order to improve things0.80text
driftinstance ofThey usually have hand-selected resistors in order to improve things0.80text
an uneven supply voltageinstance ofIssues0.80text
low gaininstance ofIssues0.80text

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