Texas Instruments ADS8555 Handleiding
Pagina's 46 Niet gecategoriseerd
Bekijk de handleiding van Texas Instruments ADS8555 gratis online of download de PDF. Deze handleiding is 1 keer bekeken. Vraag over dit model? Stel een vraag
94
92
90
88
86
84
82
80
78
76
74
72
70
Signal-to-NoiseRatio(dB)
-40-25-1052035
50
65125
Temperature(C)°
8095110
AVDD=BVDD=5V
HVSS=15V,HVDD=15V
f=10kHz,f=Max
Range=4V
InternalReference
-
±´
SIGNALDATA
REF
SARADC
String
DAC
2.5V/3V
REF
BUSY/INT
RANGE/XCLK
HW/SW
REF/WR
RESET
EN
STBY
CS
RD
/
DB[15:0]
WORD/BYTE
PAR/SER
FS
CH_A0
CONVST_A
AGND
REFC_A
REF_IO
AVDDBVDD
BGND
AGND
HVDDHVSS
Control
Logic
Config
Register
I/O
SARADC
CH_A1
AGND
SARADC
CH_B0
CONVST_B
AGND
REFC_B
SARADC
CH_B1
AGND
SARADC
CH_C0
CONVST_C
AGND
REFC_C
SARADC
CH_C1
AGND
Clock
Generator
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
ADS8555
SBAS531D–DECEMBER2010–REVISEDFEBRUARY2016
ADS8555
16-Bit,Six-Channel,SimultaneousSamplingAnalog-to-DigitalConverter
1
1Features
1
•SixSARADCsGroupedinThreePairs
•MaximumDataRatePerChannelWithInternal
ClockandReference:
630kSPS(Parallel)or450kSPS(Serial)
•MaximumDataRatePerChannelWithExternal
ClockandReference:
800kSPS(Parallel)or500kSPS(Serial)
•Pin-SelectableorProgrammableInputVoltage
Ranges:Upto±12V
•ExcellentACPerformance:
91.5-dBSNR,–94-dBTHD
•ProgrammableandBufferedInternalReference:
0.5Vto2.5Vand0.5Vto3V
•ComprehensivePower-DownModes:
–DeepPowerDown(StandbyMode)
–Auto-NapPowerDown
•SelectableParallelorSerialInterface
•OperatingTemperatureRange:–40°Cto125°C
•LQFP-64Package
2Applications
•PowerQualityMeasurements
•ProtectionRelays
•Multi-AxisMotorControls
•ProgrammableLogicControllers
•IndustrialDataAcquisition
SNRvsTemperature
3Description
TheADS8555devicecontainssixlow-power,16-bit,
successiveapproximationregister(SAR)-based
analog-to-digitalconverters(ADCs)withtruebipolar
inputs.Eachchannelcontainsasample-and-hold
circuitthatallowssimultaneoushigh-speedmulti-
channelsignalacquisition.
TheADS8555devicesupportsdataratesofupto
630kSPSinparallelinterfacemodeorupto
450kSPSiftheserialinterfaceisused.Thebus
widthoftheparallelinterfacecanbesettoeightor16
bits.Inserialmode,uptothreeoutputchannelscan
beactivated.
TheADS8555deviceisspecifiedovertheextended
industrialtemperaturerangeof–40°Cto125°Candis
availableinanLQFP-64package.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
ADS8555LQFP(64)10.00mm×10.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
BlockDiagram
2
ADS8555
SBAS531D–DECEMBER2010–REVISEDFEBRUARY2016
www.ti.com
ProductFolderLinks:ADS8555
SubmitDocumentationFeedbackCopyright©2010–2016,TexasInstrumentsIncorporated
TableofContents
1Features..................................................................1
2Applications...........................................................1
3Description.............................................................1
4RevisionHistory.....................................................2
5PinConfigurationandFunctions.........................3
6Specifications.........................................................6
6.1AbsoluteMaximumRatings......................................6
6.2ESDRatings..............................................................7
6.3RecommendedOperatingConditions.......................7
6.4ThermalInformation..................................................7
6.5ElectricalCharacteristics...........................................8
6.6SerialInterfaceTimingRequirements.....................11
6.7ParallelInterfaceTimingRequirements(Read
Access)....................................................................11
6.8ParallelInterfaceTimingRequirements(Write
Access)....................................................................11
6.9TypicalCharacteristics............................................14
7DetailedDescription............................................19
7.1Overview.................................................................19
7.2FunctionalBlockDiagram.......................................19
7.3FeatureDescription.................................................20
7.4DeviceFunctionalModes........................................25
7.5RegisterMaps.........................................................29
8ApplicationsandImplementation......................31
8.1ApplicationInformation............................................31
8.2TypicalApplication..................................................31
9PowerSupplyRecommendations......................35
10Layout...................................................................35
10.1LayoutGuidelines.................................................35
10.2LayoutExample....................................................36
11DeviceandDocumentationSupport.................37
11.1DocumentationSupport.......................................37
11.2CommunityResources..........................................37
11.3Trademarks...........................................................37
11.4ElectrostaticDischargeCaution............................37
11.5Glossary................................................................37
12Mechanical,Packaging,andOrderable
Information...........................................................37
4RevisionHistory
NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionC(October2015)toRevisionDPage
•ChangedFigure36:changedcapacitorvaluesfrom820nFto820pF..............................................................................32
ChangesfromRevisionB(February2011)toRevisionCPage
•AddedESDRatingstable,FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementation
section,PowerSupplyRecommendationssection,Layoutsection,DeviceandDocumentationSupportsection,and
Mechanical,Packaging,andOrderableInformationsection.................................................................................................1
ChangesfromRevisionA(January2011)toRevisionBPage
•Changeddescriptionofpin18inPinDescriptionstable........................................................................................................5
•AddedclarificationofINTinBUSY/INTsection...................................................................................................................23
•UpdatedTable4...................................................................................................................................................................28
•ChangedbitC20inTable5..................................................................................................................................................30
ChangesfromOriginal(December2010)toRevisionAPage
•ChangeddescriptionofCONVST_C,CONVST_B,andCONVST_ApinsinPinDescriptionstable....................................5
•ChangeddescriptionofCONVST_xsection........................................................................................................................22
•ChangedfirstparagraphofBUSY/INTsection.....................................................................................................................23
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
CH_C1
AVDD
AVDD
CH_C0
AGND
AGND
CH_B1
AVDD
AVDD
CH_B0
AGND
AGND
CH_A1
AVDD
AVDD
CH_A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DB14/REFBUF
EN
DB13/SDI
DB12
DB11
DB10/SDO_C
DB9/SDO_B
DB8/SDO_A
BGND
BVDD
DB7/HB/DC
ENEN
DB6/SCLK
DB5/DCIN_A
DB4/DCIN_B
DB3/DCIN_C
DB2/SEL_C
DB1/SEL_B
DB15
DB0/SEL_A
REF/WR
EN
BUSY/INT
HW/SW
CSFS/
PAR/SER
RD
AVDD
CONVST_C
AGND
CONVST_B
REFC_C
CONVST_A
AGND
STBY
REFC_B
AGND
AGND
AVDD
REFC_A
RANGE/XCLK
AGND
RESET
AGND
WORD/BYTE
REFIO
HVSS
AVDD
HVDD
AGND
AGND
64636261605958
57
56
5554
17
181920
2122
23
24
2526
27
5352515049
2829303132
ADS8555
3
ADS8555
www.ti.com
SBAS531D–DECEMBER2010–REVISEDFEBRUARY2016
ProductFolderLinks:ADS8555
SubmitDocumentationFeedbackCopyright©2010–2016,TexasInstrumentsIncorporated
5PinConfigurationandFunctions
PMPackage
64-PinLQFP
TopView
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8555 |
Heb je hulp nodig?
Als je hulp nodig hebt met Texas Instruments ADS8555 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden