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时间: 2020-1-15 11:38
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信号调理电路大全BufferOpAmptoAnalog-to-DigitalConverterDesign:ACCoupledSingle-EndedInput,SingleSupply,DifferentialOpAmps,DifferentialInputtoADCProblem:HowdoIbuffertheinputofanAnalogtoDigitalConverter(ADC)whenIhaveanACcoupledsingle-endedinput,singlepowersupply,differentialopamps,anddifferentialinputtoADC?Solution:Doubleclickonschematictoenlarge.ThesourceisterminatedwithaterminationresistorRT.CapacitorsC1andC2aredcblockingcapacitors.YoushouldnotethatC2isimportantinestablishingacorrectdcoperatingpointforthecircuit-manypeopleomitit,whichcanleadtopotentialproblems.ResistorsR1throughR4setthegainofthefullydifferentialopamp.R5,R6,C3,andC4areADCcompensationcomponents.CapacitorC5decoupl……