Texas Instruments ADS8365 Handleiding
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ADS8365
®
1
FEATURES
DESCRIPTION
APPLICATIONS
Interface
Conversion
and
Control
and
FIFO
Register
6x
EOC
FD
CS
WR
RD
Data
Input/Output
16
RESET
BYTE
CLK
CHA0-
CHA0+
CHA1-
CHA1+
SAR
CDAC
S/H
Amp
Comp
CDAC
Comp
CHB0-
CHB0+
HOLDA
CHB1-
CHB1+
SAR
CDAC
Comp
CDAC
Comp
CHC0-
CHC0+
CHC1-
CHC1+
REF
IN
REF
OUT
SAR
CDAC
Comp
CDAC
Comp
HOLDB
HOLDC
ADD
A2
A1
A0
Internal
2.5V
Reference
S/H
Amp
S/H
Amp
S/H
Amp
S/H
Amp
S/H
Amp
NAP
ADS8365
www.ti.com
....................................................................................................................................................SBAS362C–AUGUST2006–REVISEDMARCH2008
16-Bit,250kSPS,6-Channel,SimultaneousSampling
SARANALOG-TO-DIGITALCONVERTERS
2
•SixInputChannels
•FullyDifferentialInputs
TheADS8365includessix,16-bit,250kSPS
analog-to-digitalconverters(ADCs)withsixfully
•SixIndependent16-BitADCs
differentialinputchannelsgroupedintothreepairsfor
•4µsTotalThroughputperChannel
high-speedsimultaneoussignalacquisition.Inputsto
•LowPower:
thesample-and-holdamplifiersarefullydifferential
200mWinNormalModeandaremaintaineddifferentialtotheinputofthe
ADC.Thisarchitectureprovidesexcellent
5mWinNapMode
common-moderejectionof80dBat50kHz,whichis
50µWinPower-DownMode
importantinhigh-noiseenvironments.
•TQFP-64PackagePackage
TheADS8365offersaflexible,high-speedparallel
interfacewithadirectaddressmode,acycle,anda
FIFOmode.Theoutputdataforeachchannelis
•MotorControl
availableasa16-bitword.
•Multi-AxisPositioningSystems
•3-PhasePowerControl
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2006–2008,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
ABSOLUTEMAXIMUMRATINGS
(1)
DISSIPATIONRATINGS
ADS8365
SBAS362C–AUGUST2006–REVISEDMARCH2008....................................................................................................................................................
www.ti.com
ThisintegratedcircuitcanbedamagedbyESD.TexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwith
appropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.
ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemore
susceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.
ORDERINGINFORMATION
(1)
MAXIMUMNO
INTEGRALMISSING
LINEARITYCODESSPECIFIEDTRANSPORT
ERRORERRORPACKAGE-PACKAGETEMPERATUREPACKAGEORDERINGMEDIA,
PRODUCT(LSB)(LSB)LEADDESIGNATORRANGEMARKINGNUMBERQUANTITY
ADS8365IPAGTray,160
ADS8365±414TQFP-64PAG–40°Cto+85°CADS8365AI
Tapeand
ADS8365IPAGR
Reel,1500
(1)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumlocatedattheendofthisdatasheet,orsee
theTIwebsiteatwww.ti.com.
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
ADS8365UNIT
Supplyvoltage,AGNDtoAV
DD
–0.3to6V
Supplyvoltage,BGNDtoBV
DD
–0.3to6V
AnaloginputvoltagerangeAGND–0.3toAV
DD
+0.3V
ReferenceinputvoltagerangeAGND–0.3toAV
DD
+0.3V
DigitalinputvoltagerangeBGND–0.3toBV
DD
+0.3V
Groundvoltagedifferences,AGNDtoBGND±0.3V
Voltagedifferences,BV
DD
toAGND–0.3to6V
Inputcurrenttoanypinexceptsupply–20to20mA
PowerdissipationSeeDissipationRatingsTable
Operatingvirtualjunctiontemperaturerange,T
J
–40to+150°C
Operatingfree-airtemperaturerange,T
A
–40to+85°C
Storagetemperaturerange,T
STG
–65to+150°C
(1)StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommendedOperating
Conditionsisnotimplied.Exposuretoabsolute-maximumratedconditionsforextendedperiodsmayaffectdevicereliability.
DERATING
FACTORABOVET
A
≤+25°CT
A
=+70°CT
A
=+85°C
BOARDPACKAGER
θJC
R
θJA
T
A
=+25°CPOWERRATINGPOWERRATINGPOWERRATING
Low-K
(1)
PAG8.6°C/W68.5°C/W14.598mW/°C1824mW1168mW949mW
High-K
(2)
PAG8.6°C/W42.8°C/W23.364mW/°C2920mW1869mW1519mW
(1)TheJEDECLowK(1s)boarddesignusedtoderivethisdatawasa3-inchx3-inch,two-layerboardwith2-ouncecoppertracesontop
oftheboard.
(2)TheJEDECHighK(2s2p)boarddesignusedtoderivethisdatawasa3-inchx3-inch,multilayerboardwith1-ounceinternalpowerand
groundplanes,and2-ouncecoppertracesonthetopandbottomoftheboard.
2SubmitDocumentationFeedbackCopyright©2006–2008,TexasInstrumentsIncorporated
ProductFolderLink(s):ADS8365
RECOMMENDEDOPERATINGCONDITIONS
ELECTRICALCHARACTERISTICS:100kSPS
ADS8365
www.ti.com
....................................................................................................................................................SBAS362C–AUGUST2006–REVISEDMARCH2008
MINNOMMAXUNIT
Supplyvoltage,AV
DD
toAGND4.7555.25V
Low-voltagelevels2.73.6V
Supplyvoltage,BV
DD
toBGND
5Vlogiclevels4.555.5V
Referenceinputvoltage1.52.52.6V
Operatingcommon-modesignal,–IN2.22.52.8V
Analoginputs,+IN–(–IN)0±V
REF
V
Operatingjunctiontemperaturerange,T
J
–40+125°C
Overrecommendedoperatingfree-airtemperaturerangeat–40°Cto+85°C,AV
DD
=5V,BV
DD
=3V,V
REF
=internal+2.5V,f
CLK
=2MHz,and
f
SAMPLE
=100kSPS,unlessotherwisenoted.
ADS8365
PARAMETERTESTCONDITIONSMINTYP
(1)
MAXUNIT
ANALOGINPUT
Full-scalerangeFSR+IN–(–IN)±V
REF
V
Operatingcommon-modesignal2.22.8V
Inputresistance–IN=V
REF
750Ω
Inputcapacitance–IN=V
REF
25pF
Inputleakagecurrent–IN=V
REF
±1nA
Differentialinputresistance–IN=V
REF
1500Ω
Differentialinputcapacitance–IN=V
REF
15pF
Atdc84dB
Common-moderejectionratioCMRR
V
IN
=±1.25V
PP
at50kHz80dB
BandwidthBWFSsinewave,–3dB10MHz
DCACCURACY
Resolution16Bits
NomissingcodesNMC14Bits
IntegrallinearityerrorINL±1.5±4LSB
DifferentialnonlinearityDNL±1.5LSB
BipolaroffseterrorV
OS
±1±2.3mV
BipolaroffseterrormatchOnlypair-wisematching0.21mV
BipolaroffseterrordriftTCV
OS
0.8ppm/°C
GainerrorG
ERR
ReferencedtoV
REF
±0.05±0.25%FSR
GainerrormatchOnlypair-wisematching0.0050.05%FSR
GainerrordriftTCG
ERR
2ppm/°C
Noise60µVrms
Power-supplyrejectionratioPSRR4.75V<AV
DD
<5.25V–87dB
SAMPLINGDYNAMICS
ConversiontimeperADCt
CONV
50kHz≤f
CLK
≤5MHz3.2320µs
Acquisitiontimet
AQ
f
CLK
=5MHz800ns
Aperturedelay5ns
Aperturedelaymatching100ps
Aperturejitter50ps
Clockfrequency0.055MHz
(1)Alltypicalvaluesareat+25°C.
Copyright©2006–2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3
ProductFolderLink(s):ADS8365
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8365 |
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