Texas Instruments ADS7254 Handleiding
Pagina's 73 Niet gecategoriseerd
Bekijk de handleiding van Texas Instruments ADS7254 gratis online of download de PDF. Deze handleiding is 0 keer bekeken. Vraag over dit model? Stel een vraag
AVDD
AVDD
V
CM
10
4.7 nF
V
IN+
+
V
IN-
+
+
THS4521
V
+
AINP
AINM
GND
AVDD
ADSxx54
10
INPUT DRIVER
ADS8354 : 16-bit, 700 kSPS
ADS7854 : 14-bit, 1 MSPS
ADS7254 : 12-bit, 1 MSPS
-
-
1 K 1 K
1 K
1 K
+
VREF
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
ADS8354
,
ADS7854
,
ADS7254
SBAS556B–OCTOBER2013–REVISEDAUGUST2014
ADSxx54Dual,High-Speed,16-,14-,and12-Bit,
Simultaneous-Sampling,Analog-to-DigitalConverters
1Features2Applications
1
•16-,14-,and12-Bit,Pin-CompatibleFamily
•MotorControl:
PositionMeasurementUsingEncoders
•SimultaneousSamplingofTwoChannels
•OpticalNetworking:EDFAGainControlLoops
•SupportsFully-DifferentialInputs
•ProtectionRelays
•HighSpeed:
•PowerQualityMeasurement
–ADS8354:16Bits,700kSPS
•Three-PhasePowerControls
–ADS7854:14Bits,1MSPS
•ProgrammableLogicControllers
–ADS7254:12Bits,1MSPS
•ExcellentDCPerformance:
3Description
–ADS8354:
TheADS8354,ADS7854,andADS7254belongtoa
–16-BitNMCDNL,±2.5-LSBMaxINL
familyofpin-compatible,dual,high-speed,
simultaneous-sampling,analog-to-digitalconverters
–ADS7854:
(ADCs)thatsupportfully-differentialanaloginputs.
–14-BitNMCDNL,±1.5-LSBMaxINL
Eachdeviceincludestwoindividuallyprogrammable
–ADS7254:
referencesourcesthatcanbeusedforsystem-level
–12-BitNMCDNL,±1-LSBMaxINL
gaincalibration.Also,aflexibleserialinterfacethat
•ExcellentACPerformance:
canoperateoverawidepower-supplyrangeenables
easycommunicationwithalargevarietyofhost
–ADS8354:
controllers.Powerconsumptionforagiven
–93-dBSNR,–100-dBTHD
throughputcanbeoptimizedbyusingthetwolow-
–ADS7854:
powermodessupportedbythedevice.Alldevices
arefullyspecifiedovertheextendedindustrial
–88-dBSNR,–95-dBTHD
temperaturerange(–40°Cto125°C)andare
–ADS7254:
availableinpin-compatible,WQFN-16(3-mm×
–72-dBSNR,–90-dBTHD
3-mm)andTSSOP-16packages.
•Dual,Programmable,andBuffered
DeviceInformation
(1)
2.5-VInternalReference
PARTNUMBERPACKAGEBODYSIZE(NOM)
•Fully-SpecifiedOvertheExtendedIndustrial
TSSOP(16)5.00mm×4.40mm
TemperatureRange:–40°Cto125°C
ADSxx54
WQFN(16)3.00mm×3.00mm
•SmallFootprint:
WQFN-16(3-mm×3-mm)andTSSOP-16
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
TypicalApplicationDiagram
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
ADS8354
,
ADS7854
,
ADS7254
SBAS556B–OCTOBER2013–REVISEDAUGUST2014
www.ti.com
TableofContents
1Features..................................................................18DetailedDescription............................................28
8.1Overview.................................................................28
2Applications...........................................................1
8.2FunctionalBlockDiagram.......................................28
3Description.............................................................1
8.3FeatureDescription.................................................29
4RevisionHistory.....................................................2
8.4DeviceFunctionalModes........................................33
5DeviceComparisonTable.....................................3
8.5RegisterMapsandSerialInterface.........................33
6PinConfigurationsandFunctions.......................4
9ApplicationandImplementation........................47
7Specifications.........................................................5
9.1ApplicationInformation............................................47
7.1AbsoluteMaximumRatings.....................................5
9.2TypicalApplications................................................49
7.2HandlingRatings.......................................................5
10Power-SupplyRecommendations.....................57
7.3RecommendedOperatingConditions.......................5
11Layout...................................................................58
7.4ThermalInformation..................................................5
11.1LayoutGuidelines.................................................58
7.5ElectricalCharacteristics:ADS8354.........................6
11.2LayoutExample....................................................58
7.6ElectricalCharacteristics:ADS7854.........................7
12DeviceandDocumentationSupport.................59
7.7ElectricalCharacteristics:ADS7254.........................8
12.1RelatedLinks........................................................59
7.8ElectricalCharacteristics:AllDevices.......................9
12.2RelatedDocumentation.........................................59
7.9TimingRequirements:InterfaceMode....................11
12.3Trademarks...........................................................59
7.10TimingCharacteristics:SerialInterface................11
12.4ElectrostaticDischargeCaution............................59
7.11TypicalCharacteristics:ADS8354........................13
12.5Glossary................................................................59
7.12TypicalCharacteristics:ADS7854........................17
13Mechanical,Packaging,andOrderable
7.13TypicalCharacteristics:ADS7254........................22
Information...........................................................59
7.14TypicalCharacteristics:CommontoADS8354,
ADS7854,andADS7254.........................................27
4RevisionHistory
ChangesfromRevisionA(July2014)toRevisionBPage
•MadechangestotheADS8354previewdeviceandmovedtoProductionDatastatus........................................................1
•ChangeddocumentstatusfromMixedStatustoProductionData........................................................................................1
•Correctedcross-referenceforFigure98..............................................................................................................................46
ChangesfromOriginal(October2013)toRevisionAPage
•Madechangestoproductpreviewdatasheet........................................................................................................................1
2SubmitDocumentationFeedbackCopyright©2013–2014,TexasInstrumentsIncorporated
ProductFolderLinks:ADS8354ADS7854ADS7254
ADS8354
,
ADS7854
,
ADS7254
www.ti.com
SBAS556B–OCTOBER2013–REVISEDAUGUST2014
5DeviceComparisonTable
RESOLUTION
PRODUCT(Bits)INPUTCONFIGURATIONNMC(Bits)INL(LSB)SNR(dB)
ADS835416Fully-differential16±2.593(typ)
ADS785414Fully-differential14±1.588(typ)
ADS725412Fully-differential12±174(typ)
Single-endedand
ADS83531616±2.589(typ)
pseudo-differential
Single-endedand
ADS78531414±284(typ)
pseudo-differential
Single-endedand
ADS72531212±173.5(typ)
pseudo-differential
Copyright©2013–2014,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3
ProductFolderLinks:ADS8354ADS7854ADS7254
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS7254 |
Heb je hulp nodig?
Als je hulp nodig hebt met Texas Instruments ADS7254 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden