Texas Instruments ADC0820-N Handleiding

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ADC0820-N

www.ti.com

SNAS529C–JUNE1999–REVISEDMARCH2013

ADC0820-N8-BitHighSpeedµPCompatibleA/DConverterwithTrack/HoldFunction

CheckforSamples:ADC0820-N

1

FEATURES

KEYSPECIFICATIONS

2

•Built-InTrack-and-HoldFunction

•Resolution:8Bits

•NoMissingCodes•ConversionTime

•NoExternalClocking–2.5µsMax(RDMode)

•SingleSupply—5V

DC

–1.5µsMax(WR-RDMode)

•EasyInterfacetoAllMicroprocessors,or•LowPower:75mWMax

OperatesStand-Alone

•TotalUnadjustedError:±½LSBand±1LSB

•LatchedTRI-STATEOutput

DESCRIPTION

•LogicInputsandOutputsMeetBothMOSand

Byusingahalf-flashconversiontechnique,the8-bit

T

2

LVoltageLevelSpecifications

ADC0820-NCMOSA/Doffersa1.5µsconversion

•OperatesRatiometricallyorwithany

timeanddissipatesonly75mWofpower.Thehalf-

ReferenceValueEqualtoorLessthanV

CC

flashtechniqueconsistsof32comparators,amost

•0Vto5VAnalogInputVoltageRangewith

significant4-bitADCandaleastsignificant4-bit

Single5VSupply

ADC.

•NoZeroorFull-ScaleAdjustRequired

TheinputtotheADC0820-Nistrackedandheldby

•OverflowOutputAvailableforCascading

theinputsamplingcircuitryeliminatingtheneedfor

anexternalsample-and-holdforsignalsmovingat

•0.3in.StandardWidth20-PinPDIP

lessthan100mV/µs.

•20-PinPLCC

Foreaseofinterfacetomicroprocessors,the

•20-PinSOIC

ADC0820-Nhasbeendesignedtoappearasa

memorylocationorI/Oportwithouttheneedfor

externalinterfacinglogic.

ConnectionandFunctionalDiagrams

Figure1.CDIP,PDIP,Figure2.PLCCPackage

andSOICPackages(TopView)

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©1999–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties