A Single-Supply Op-Amp Circuit Collection

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1、ApplicationReportSLOA058–November2000ASingle-SupplyOp-AmpCircuitCollectionBruceCarterOp-AmpApplications,HighPerformanceLinearProductsOneofthebiggestproblemsfordesignersofop-ampcircuitryariseswhenthecircuitmustbeoperatedfromasinglesupply,ratherthan±15V.Thisa

2、pplicationnoteprovidesworkingcircuitexamples.Contents1Introduction...................................................................................................................................31.1SplitSupplyvsSingleSupply...............................

3、.....................................................................31.2VirtualGround...........................................................................................................................41.3AC-Coupling.................................

4、............................................................................................41.4CombiningOp-AmpStages......................................................................................................51.5SelectingResistorandCapacitorValue

5、s..................................................................................52BasicCircuits................................................................................................................................52.1Gain.......................

6、...................................................................................................................52.2Attenuation...............................................................................................................................

7、62.3Summing..................................................................................................................................92.4DifferenceAmplifier.............................................................................................

8、.....................92.5SimulatedInductor....................................................................................................................92.6InstrumentationAmplifiers..............