Texas Instruments ADS8382 Handleiding
Pagina's 33 Niet gecategoriseerd
Bekijk de handleiding van Texas Instruments ADS8382 gratis online of download de PDF. Deze handleiding is 0 keer bekeken. Vraag over dit model? Stel een vraag
FEATURESAPPLICATIONS
DESCRIPTION
CDAC
_
+
Output
Latches
and
3-State
Drivers
FS
SAR
Conversion
and
Control Logic
Comparator
Clock
+IN
−IN
REFIN
CONVST
BUSY
CS
PD
4.096-V
Internal
Reference
REFOUT
SCLK
SDO
ADS8382
SLAS416B–JUNE2004–REVISEDNOVEMBER2004
18-BIT,600-kHz,FULLYDIFFERENTIALPSEUDO-BIPOLARINPUT,
MICROPOWERSAMPLINGANALOG-TO-DIGITALCONVERTER
WITHSERIALINTERFACEANDREFERENCE
•600-kHzSampleRate•MedicalInstruments
•OpticalNetworking
•±1.25LSBTyp,±3LSBMaxINL
•TransducerInterface
•18-BitNMCEnsuredOverTemperature
•HighAccuracyDataAcquisitionSystems
•SINAD96dB,SFDR120dBatf
i
=1kHz
•Magnetometers
•High-SpeedSerialInterfaceupto40MHz
•OnboardReferenceBuffer
•Onboard4.096-VReference
TheADS8382isahighperformance18-bit,600-kHz
•Pseudo-BipolarInput,upto±4.2V
A/Dconverterwithfullydifferential,pseudo-bipolar
•OnboardConversionClock
input.Thedeviceincludesan18-bitcapacitor-based
•ZeroLatency
SARA/Dconverterwithinherentsampleandhold.
•WideDigitalSupply
TheADS8382offersahigh-speedCMOSserial
•LowPower
interfacewithclockspeedsupto40MHz.
–115mWat600kHz
TheADS8382isavailableina28lead6×6QFN
–15mWDuringNapMode
packageandischaracterizedovertheindustrial
–40°Cto85°Ctemperaturerange.
–10µWDuringPowerDown
•28-Pin6×6QFNPackage
HighSpeedSARConverterFamily
Type/Speed500kHz~600kHz750kHZ1MHz1.25MHz2MHz3MHz4MHz
ADS8383ADS8381
18-BitPseudo-Diff
ADS8380(S)
18-BitPseudo-Bipolar,FullyDiffADS8382(S)
16-BitPseudo-DiffADS8371ADS8401/05ADS8411
16-BitPseudo-Bipolar,FullyDiffADS8402/06ADS8412
14-BitPseudo-DiffADS7890(S)ADS7891
12-BitPseudo-DiffADS7886ADS7881
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2004,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
www.ti.com
ABSOLUTEMAXIMUMRATINGS
ADS8382
SLAS416B–JUNE2004–REVISEDNOVEMBER2004
Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedevice
placedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.
ORDERINGINFORMATION
(1)
NO
MAXIMUMMAXIMUM
MISSINGTEMPERA-TRANSPORT
INTEGRALDIFFERENTIALPACKAGEPACKAGEORDERING
MODELCODESTUREMEDIA
LINEARITYLINEARITYTYPEDESIGNATORINFORMATION
RESOLUTIONRANGEQUANTITY
(LSB)(LSB)
(BIT)
SmallTapeand
ADS8382IRHPT
Reel250
28Pin
ADS8382I±5-2/2.517RHP-40°Cto85°C
6×6QFN
TapeandReel
ADS8382IRHPR
2500
SmallTapeand
ADS8382IBRHPT
Reel250
28Pin
ADS8382IB±3-1/1.518RHP-40°Cto85°C
6×6QFN
Tapeand
ADS8382IBRHPR
Reel2500
(1)Forthemostcurrentspecificationsandpackageinformation,refertoourwebsiteatwww.ti.com
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
(1)
UNIT
+INtoAGND–0.3Vto+VA+0.3V
–INtoAGND–0.3Vto+VA+0.3V
Voltage
+VAtoAGND–0.3Vto7V
+VBDtoBDGND–0.3Vto7V
DigitalinputvoltagetoBDGND–0.3Vto+VBD+0.3V
Digitalinputvoltageto+VA+0.3V
Operatingfree-airtemperaturerange,T
A
–40°Cto85°C
Storagetemperaturerange,T
stg
–65°Cto150°C
Junctiontemperature(T
J
max)150°C
Powerdissipation(T
J
max–T
A
)/θ
JA
QFNpackage
θ
JA
thermalimpedance86°C/W
Vaporphase(60sec)215°C
Leadtemperature,soldering
Infrared(15sec)220°C
(1)Stressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperating
conditions"isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
2
www.ti.com
SPECIFICATIONS
ADS8382
SLAS416B–JUNE2004–REVISEDNOVEMBER2004
At–40°Cto85°C,+VA=+5V,+VBD=+5Vor+VBD=+2.7V,usinginternalorexternalreference,f
SAMPLE
=600kHz,
unlessotherwisenoted.(Allperformanceparametersarevalidonlyafterdevicehasproperlyresumedfrompowerdown,
Table2.)
ADS8382IBADS8382I
PARAMETERTESTCONDITIONSUNIT
MINTYPMAXMINTYPMAX
ANALOGINPUT
Full-scale
+IN–(–IN)–V
ref
V
ref
–V
ref
V
ref
V
inputvoltage
(1)
+IN–0.2V
ref
+0.2-0.2V
ref
+0.2
AbsoluteinputvoltageV
–IN–0.2V
ref
+0.2-0.2V
ref
+0.2
Inputcommonmode
(V
ref
/2)–0.2(V
ref
/2)+0.2(V
ref
/2)–0.2(V
ref
/2)+0.2V
range
Samplingcapacitance
(measuredbetween+IN
4040pF
toAGNDand-INto
AGND)
Inputleakagecurrent11nA
SYSTEMPERFORMANCE
Resolution1818Bits
Nomissingcodes1817Bits
Quietzonesobserved–3±1.253–55
LSB
INLIntegrallinearity
(2)(3)(4)
(18bit)
Quietzonesnotobserved±2
Quietzonesobserved–1±0.61.5–22.5
LSB
DNLDifferentiallinearity
(3)
(18bit)
Quietzonesnotobserved±1.25
E
O
Offseterror
(3)
–0.75±0.250.75–1.51.5mV
E
G
Gainerror
(3)(5)
–0.0750.075-0.10.1%FS
AtDC8080
Common-moderejection
CMRRdB
[+IN+(–IN)]/2=50mV
p-p
ratio
5555
at1MHz+DCofV
ref
/2
NoiseAt00000Houtputcode4040µVRMS
DCPowersupplyrejec-
PSRRAt10000Houtputcode5555dB
tionratio
SAMPLINGDYNAMICS
Conversiontime1.161.16µs
Acquisitiontime0.5010000.501000µs
Throughputrate600600kHz
Aperturedelay1010ns
Aperturejitter1212psRMS
Stepresponse
(6)
400400ns
Overvoltagerecovery400400ns
DYNAMICCHARACTERISTICS
VIN=8V
p-p
at1kHz-116-116
Totalharmonic
THDVIN=8V
p-p
at10kHz-115-115dB
distortion
(3)(7)
VIN=8V
p-p
at100kHz-96-96
VIN=8V
p-p
at1kHz9696
SNRSignal-to-noiseratio
(3)
VIN=8V
p-p
at10kHz9595dB
VIN=8V
p-p
at100kHz9494
(1)Idealinputspan;doesnotincludegainoroffseterror.
(2)LSBmeansleastsignificantbit.
(3)MeasuredusinganaloginputcircuitinFigure54anddigitalstimulusinFigure58andFigure59andreferencevoltageof4.096V.
(4)ThisisendpointINL,notbestfit.
(5)Measuredusingexternalreferencesourcesodoesnotincludeinternalreferencevoltageerrorordrift.
(6)Definedassamplingtimenecessarytosettleaninitialerrorof2Vrefonthesamplingcapacitortoafinalerrorof1LSBat18-bitlevel.
MeasuredusingtheinputcircuitinFigure54.
(7)Calculatedonthefirstnineharmonicsoftheinputfrequency.
3
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8382 |
Heb je hulp nodig?
Als je hulp nodig hebt met Texas Instruments ADS8382 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden