OPAMP in Solar PV (1)

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1、TheWorldLeaderinHighPerformanceSignalProcessingSolutionsOP-AMPinSolarPVOct.2013AgendaDifferenceAmplifyforPVCurrentSensingAmplifyforPVTheWorldLeaderinHighPerformanceSignalProcessingSolutionsDifferenceAmplifyIntegratedAmplifiersFeaturesIntegrationofOp-Ampsand5mV/CRe

2、sistorsproducesBetterPerformance&frequentlyLowerInstrumentationThermocoupleDifferenceCurrentSenseVGACostAmplifierAmplifierAmplifierAmplifierInputImpedanceVeryHighVeryHighMedium/HighHighVariousBandwidthupto15MHzupto31kHzupto20MHzupto3MHzupto280MHzGains1to10,0005mV/°C

3、0.1to21to100-30dBto70dBMuststaywithinMuststaywithinMuststaywithinCMVRangeUpto±270V-2Vto500VsupplyrailssupplyrailssupplyrailsCMRR120dB0.3°C/V80dB85dBNAT12(X1X2)(Y1Y2)RMStoDCConvertersVRMSVmsinTdtMultipliersZT10V04ASSPsAmplifierIntegrationOpAmpDiffAmpDifferenc

4、eAmplifierSingleICSolutionDifferentialtosingle-endedconversionMatchedresistorsExcellentCMRR5DifferenceAmplifierV=R1/R2(V-V)OUTABR1R2B–OUTA+R2R16DifferenceAmplifier:AnalysisR1PositivePath:R2V=R1/(R1+R2)*(R1+R2)/R2*V–OUTINOUTA+=R1/R2*VAR2R1R1NegativePath:R2V=

5、–R1/R2*VB–OUTBOUT+R2R1R1DifferenceAmplifier:R2B–VOUT=R1/R2*VA–R1/R2*VB+OUTAR2=R1/R2*(V–V)ABR17DifferenceAmplifier:keyspecificationInputCommonModeVoltageCMRRBandwidthGainandGaindriftInputimpedanceAdditionalfunctionality8DifferenceAmplifierIndexTypePartNumberD

6、escriptionAD8270DualLowDistortion,20MHz,G=0.5,1,2HighSpeedAD8271SingleLowDistortion,15MHz,G=0.5,1,2AD8274/3Single/DualDifferenceAmplifier,G=0.5,2AD8276/7Single/DualWideInputRange,550kHz,G=1LowPowerAD8278/9Single/DualWideInputRange,1MHz,G=0.5,2AD8275Leveltranslation(

7、16-bit@250kSPS),G=0.2ADCDriversAD8475Fullydifferential,(18-bit@4MSPS),G=0.4/0.8AD8476LowPower,fullydifferential,G=1AD628±120VCommonMode,G=0.1to100HighVoltageAD629±270VCommonMode,G=1AD8479±600VCommonMode,G=1AD626G=10,100differenceampAMP03G=1differenceampGeneralPurpos

8、eSSM2141G=1LineDriverSSM2143G=0.5,2LineReceiver9AD8275:G=0.2LevelTranslation16-bitADCDriver+VSKeyFeaturesDifferenceAmplifierG=0.2-INSENS