ad574 模数转换器

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1、Completea12-BitA/DConverterAD574A*FEATURESBLOCKDIAGRAMANDComplete12-BitA/DConverterwithReferencePINCONFIGURATIONandClock8-and16-BitMicroprocessorBusInterface+5VSUPPLYSTATUS128VLOGICSTSGuaranteedLinearityOverTemperatureDATAMODESELECTMSBDB1122708Cto+708C–AD574AJ,K,L12/8NMS

2、BCHIPSELECT3CONTROLI26DB10–558Cto+1258C–AD574AS,T,UCS3BBYTEADDRESS/BNoMissingCodesOverTemperatureSHORTCYCLE4SL25DB9AEOT35msMaximumConversionTimeREAD/CONVERT5CLOCKSAR12AA24DB8R/CTBuriedZenerReferenceforLong-TermStabilityCHIPENABLE6EN23DB7CE3kOIandLowGainT.C.10ppm/8CmaxAD5

3、74AL+12/+15VSUPPLY7UB22DB6DIGITALVCCCOMP12TBDATA12.5ppm/8CmaxAD574AU+10VREFERENCEPL810VUE21DB5OUTPUTSREFOUTREFIDACCeramicDIP,PlasticDIPorPLCCPackageANALOGCOMMON9IDAC=TB20DB4AvailableinHigherSpeed,Pinout-CompatibleVersionsAC4xNxIREFBREFERENCEINPUT10UN19DB3(15msAD674B,80ms

4、AD774B;10ms(withSHA)AD1674)REFIN19.95kIREF8kFI-12/-15VSUPPLYFBAvailableinVersionsCompliantwithMIL-STD-883and11EB18DB2VEER9.95kLJANQPLBIPOLAROFFSET12SE17DB1BIPOFF10VSPANINPUT5kDACNVEECDB010V13LSB16LSBIN5k20VSPANINPUT141215DIGITALCOMMON20VINAD574ADCPRODUCTDESCRIPTIONPRODUC

5、THIGHLIGHTSTheAD574Aisacomplete12-bitsuccessive-approximation1.TheAD574Ainterfacestomost8-or16-bitmicroproces-analog-to-digitalconverterwith3-stateoutputbuffercircuitrysors.Multiple-modethree-stateoutputbuffersconnectdi-fordirectinterfacetoan8-or16-bitmicroprocessorbus.A

6、highrectlytothedatabuswhilethereadandconvertcommandsprecisionvoltagereferenceandclockareincludedon-chip,andaretakenfromthecontrolbus.The12bitsofoutputdatathecircuitguaranteesfull-ratedperformancewithoutexternalcanbereadeitherasone12-bitwordorastwo8-bitbytescircuitryorclo

7、cksignals.(onewith8databits,theotherwith4databitsand4trailingTheAD574AdesignisimplementedusingAnalogDevices’zeros).Bipolar/I2Lprocess,andintegratesallanaloganddigitalfunc-2.Theprecision,laser-trimmedscalingandbipolaroffsetresis-tionsononechip.Offset,linearityandscalinger

8、rorsaremini-torsprovidefourcalibratedranges:0voltsto+10voltsand0mizedbyactivelaser-trimmingofthin-filmr