Texas Instruments ADS8331 Handleiding
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SDI
SCLK
SDO
CDAC
SAR
Comparator
Output
Latch
and
3-State
Driver
Conversion
and
Control
Logic
_
+
FS/CS
CONVST
EOC/INT/CDI
RESET
REF+
M
U
X
ADCINMUXOUT
IN[0:3]
or
IN[0:7]
COM
REF-
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
ADS8331
,
ADS8332
SBAS363E–DECEMBER2009–REVISEDAUGUST2016
ADS833xLow-Power,16-Bit,500-kSPS,4-and8-ChannelUnipolarInput
Analog-to-DigitalConvertersWithSerialInterface
1
1Features
1
•Low-Power,FlexibleSupplyRange:
–2.7-Vto5.5-VAnalogSupply
–8.7mW(250kSPSinAuto-NAPMode,
VA=2.7V,VBD=1.65V)
–14.2mW(500kSPS,VA=2.7V,
VBD=1.65V)
•Upto500-kSPSSamplingRate
•ExcellentDCPerformance:
–±1.2LSBTypical,±2LSBMaximumINLat
2.7V
–±0.6LSBTypical,–1,1.5LSBMaximumDNL
at2.7V
–16-BitNMCOverTemperature
•ExcellentACPerformanceat5V,f
IN
=1kHz:
–91.5-dBSNR,101-dBSFDR,–100-dBTHD
•FlexibleAnalogInputArrangement:
–On-Chip4-,8-ChannelMuxWithBreakout
–Auto,ManualChannelSelectandTrigger
•OtherHardwareFeatures:
–On-ChipConversionClock(CCLK)
–Software,HardwareReset
–ProgrammableStatus,PolarityEOC/INT
–Daisy-ChainMode
–GlobalCONVST(IndependentofCS)
–Deep,Nap,andAuto-NAPPowerdownModes
–SPI™,DSPCompatibleSerialInterface
–SeparateI/OSupply:1.65VtoVA
–SCLKupto40MHz(VA=VBD=5V)
•24-Pin4-mm×4-mmVQFNand24-PinTSSOP
Packages
2Applications
•Communications
•TransducerInterfaces
•MedicalInstruments
•Magnetometers
•IndustrialProcessControls
•DataAcquisitionSystems
•AutomaticTestEquipment
3Description
TheADS8331isalow-power,16-bit,500-ksamples-
per-second(SPS)analog-to-digitalconverter(ADC)
withaunipolar,4-to-1multiplexer(mux)input.The
deviceincludesa16-bitcapacitor-basedsuccessive
approximationregister(SAR)ADCwithinherent
sampleandhold.
TheADS8332isbasedonthesamecoreand
includesaunipolar8-to-1inputmux.Bothdevices
offerahigh-speed,wide-voltageserialinterfaceand
arecapableofdaisy-chainoperationwhenmultiple
convertersareused.
Theseconvertersareavailablein24-pin,4×4VQFN
and24-pinTSSOPpackagesandarefullyspecified
foroperationovertheindustrial–40°Cto85°C
temperaturerange.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
ADS833x
VQFN(24)4.00mm×4.00mm
TSSOP(24)7.80mm×4.40mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
BlockDiagram
2
ADS8331
,
ADS8332
SBAS363E–DECEMBER2009–REVISEDAUGUST2016
www.ti.com
ProductFolderLinks:ADS8331ADS8332
SubmitDocumentationFeedbackCopyright©2009–2016,TexasInstrumentsIncorporated
TableofContents
1Features..................................................................1
2Applications...........................................................1
3Description.............................................................1
4RevisionHistory.....................................................2
5CompanionProducts.............................................3
6DeviceComparison...............................................4
7PinConfigurationandFunctions.........................4
8Specifications.........................................................6
8.1AbsoluteMaximumRatings......................................6
8.2ESDRatings..............................................................6
8.3RecommendedOperatingConditions.......................6
8.4ThermalInformation..................................................6
8.5ElectricalCharacteristics:VA=2.7V.......................7
8.6ElectricalCharacteristics:VA=5V..........................9
8.7TimingRequirements:VA=2.7V..........................11
8.8TimingCharacteristics:VA=5V............................12
8.9TypicalCharacteristics:DCPerformance...............14
8.10TypicalCharacteristics:ACPerformance.............17
9DetailedDescription............................................20
9.1Overview.................................................................20
9.2FunctionalBlockDiagram.......................................20
9.3FeatureDescription.................................................20
9.4DeviceFunctionalModes........................................22
9.5Programming...........................................................29
10ApplicationandImplementation........................37
10.1ApplicationInformation..........................................37
10.2TypicalApplications.............................................41
11PowerSupplyRecommendations.....................44
12Layout...................................................................44
12.1LayoutGuidelines.................................................44
12.2LayoutExample....................................................46
13DeviceandDocumentationSupport.................47
13.1DocumentationSupport........................................47
13.2RelatedLinks........................................................47
13.3ReceivingNotificationofDocumentationUpdates47
13.4CommunityResources..........................................47
13.5Trademarks...........................................................47
13.6ElectrostaticDischargeCaution............................47
13.7Glossary................................................................48
14Mechanical,Packaging,andOrderable
Information...........................................................48
4RevisionHistory
NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionD(October2015)toRevisionEPage
•ChangedVAparametermaximumspecificationinRecommendedOperatingConditionstable...........................................6
ChangesfromRevisionC(May2012)toRevisionDPage
•AddedESDRatingstable,FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementation
section,PowerSupplyRecommendationssection,Layoutsection,DeviceandDocumentationSupportsection,and
Mechanical,Packaging,andOrderableInformationsection.................................................................................................1
ChangesfromRevisionB(December2010)toRevisionCPage
•ChangednameoflastcolumninLow-Power,High-Speed,SARConverterFamilytable.....................................................4
•Deleted4-channeland8-channelrowsfrom14-BitPseudo-DiffresolutioninLow-Power,High-Speed,SAR
ConverterFamilytable...........................................................................................................................................................4
•AddedlastparagraphtoStartofaConversionsection........................................................................................................25
•ChangedVAvaluefrom3.3Vto2.7VandV
REF
valuefrom4.096Vto2.5V....................................................................38
ChangesfromRevisionA(November2010)toRevisionBPage
•DeletedOrderingInformationtable.......................................................................................................................................6
3
ADS8331
,
ADS8332
www.ti.com
SBAS363E–DECEMBER2009–REVISEDAUGUST2016
ProductFolderLinks:ADS8331ADS8332
SubmitDocumentationFeedbackCopyright©2009–2016,TexasInstrumentsIncorporated
5CompanionProducts
PartnumberName
REF32404.096V4ppm/°C,100uASOT23-6Series(Bandgap)VoltageReference
DAC856216-bit,dual-channel,low-power,ultra-lowglitch,bufferedvoltageoutputDACwith2.5V,4ppm/°Cref
DAC856816-bit,octal-channel,ultra-lowglitch,voltageoutputDACwith2.5V,2ppm/°Cinternalreference
LM5160WideInput65V,1.5ASynchronousStep-DownDC-DCConv
OPA23481MHz,45uA,RRIO,DualOpAmp
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8331 |
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