Texas Instruments ADS8411 Handleiding
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FEATURESAPPLICATIONS
DESCRIPTION
CDAC
_
+
Output
Latches
and
3-State
Drivers
BYTE
16-/8-Bit
Parallel DATA
Output Bus
SAR
Conversion
and
Control Logic
Comparator
Clock
+IN
−IN
REFIN
CONVST
BUSY
CS
RD
RESET
4.096-V
Internal
Reference
REFOUT
ADS8411
SLAS369B–APRIL2002–REVISEDDECEMBER2004
16-BIT,2MSPS,UNIPOLARINPUT,MICROPOWERSAMPLING
ANALOG-TO-DIGITALCONVERTERWITHPARALLELINTERFACEANDREFERENCE
•DWDM
•2-MHzSampleRate
•Instrumentation
•16-BitNMCEnsuredOverTemperature
•High-Speed,High-Resolution,ZeroLatency
•ZeroLatency
DataAcquisitionSystems
•UnipolarSingle-EndedInputRange:
•TransducerInterface
0VtoV
ref
•MedicalInstruments
•OnboardReference
•Communication
•OnboardReferenceBuffer
•High-SpeedParallelInterface
•PowerDissipation:175mWat2MHzTyp
TheADS8411isa16-bit,2MHzA/Dconverterwith
•WideDigitalSupply
aninternal4.096-Vreference.Thedeviceincludesa
16-bitcapacitor-basedSARA/Dconverterwithin-
•8-/16-BitBusTransfer
herentsampleandhold.TheADS8411offersafull
•48-PinTQFPPackage
16-bitinterfaceandan8-bitoptionwheredataisread
•ESDSensitive–HBMCapabilityof500V,
usingtwo8-bitreadcycles.
1000VatAllInputPins
TheADS8411hasaunipolarsingle-endedinput.Itis
availableina48-leadTQFPpackageandis
characterizedovertheindustrial-40°Cto85°Ctem-
peraturerange.
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2002–2004,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
www.ti.com
ABSOLUTEMAXIMUMRATINGS
ADS8411
SLAS369B–APRIL2002–REVISEDDECEMBER2004
ThisintegratedcircuitcanbedamagedbyESD.TexasInstrumentsrecommendsthatallintegrated
circuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallation
procedurescancausedamage.
ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precision
integratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescould
causethedevicenottomeetitspublishedspecifications.
ORDERINGINFORMATION
(1)
MAXIMUMMAXIMUMNOMISSING
PACKAGETEMPERA-TRANSPORT
INTEGRALDIFFERENTIALCODESPACKAGEORDERING
MODELDESIG-TUREMEDIA
LINEARITYLINEARITYRESOLUTIONTYPEINFORMATION
NATORRANGEQUANTITY
(LSB)(LSB)(BIT)
Tapeandreel
ADS8411IPFBT
250
48Pin
ADS8411I–6~6–2~315PFB–40°Cto85°C
TQFP
Tapeandreel
ADS8411IPFBR
1000
Tapeandreel
ADS8411IBPFBT
250
48Pin
ADS8411IB–2.5~2.5–1~216PFB–40°Cto85°C
TQFP
Tapeandreel
ADS8411IBPFBR
1000
(1)Forthemostcurrentspecificationsandpackageinformation,refertoourwebsiteatwww.ti.com.
overoperatingfree-airtemperaturerangeunlessotherwisenoted
(1)
UNIT
+INtoAGND–0.4Vto+VA+0.1V
Voltage
–INtoAGND–0.4Vto0.5V
+VAtoAGND–0.3Vto7V
Voltagerange+VBDtoBDGND–0.3Vto7V
+VAto+VBD–0.3Vto2.55V
DigitalinputvoltagetoBDGND–0.3Vto+VBD+0.3V
DigitaloutputvoltagetoBDGND–0.3Vto+VBD+0.3V
T
A
Operatingfree-airtemperaturerange–40°Cto85°C
T
stg
Storagetemperaturerange–65°Cto150°C
Junctiontemperature(T
J
max)150°C
Powerdissipation(T
J
Max-T
A
)/θ
JA
TQFPpackage
θ
JA
thermalimpedance86°C/W
Vaporphase(60sec)215°C
Leadtemperature,soldering
Infrared(15sec)220°C
(1)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperating
conditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
2
www.ti.com
SPECIFICATIONS
ADS8411
SLAS369B–APRIL2002–REVISEDDECEMBER2004
T
A
=–40°Cto85°C,+VA=5V,+VBD=3Vor5V,V
ref
=4.096V,f
SAMPLE
=2MHz(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
ANALOGINPUT
Full-scaleinputvoltage
(1)
+IN–(–IN)0V
ref
V
+IN–0.2V
ref
+0.2
AbsoluteinputvoltageV
–IN–0.20.2
Inputcapacitance25pF
Inputleakagecurrent0.5nA
SYSTEMPERFORMANCE
Resolution16Bits
ADS8411I15
NomissingcodesBits
ADS8411IB16
ADS8411I–6±46
INLIntegrallinearity
(2)(3)
LSB
ADS8411IB–2.5±1.52.5
ADS8411I–2±13
DNLDifferentiallinearityLSB
ADS8411IB–1±0.82
ADS8411I–1.5±0.51.5mV
E
O
Offseterror
(4)
ADS8411IB–0.75±0.250.75mV
ADS8411I–0.150.15
E
G
Gainerror
(4)(5)
%FS
ADS8411IB–0.0980.098
Noise60µVRMS
AtFFFFhoutputcode,
PSRRDCPowersupplyrejectionratio+VA=4.75Vto5.25V,2LSB
V
ref
=4.096V
(4)
SAMPLINGDYNAMICS
Conversiontime340400ns
Acquisitiontime100ns
Throughputrate2MHz
Aperturedelay2ns
Aperturejitter25ps
Stepresponse100ns
Overvoltagerecovery100ns
DYNAMICCHARACTERISTICS
V
IN
=4V
pp
at100kHz–90dB
THDTotalharmonicdistortion
(6)
V
IN
=4V
pp
at500kHz–88.5dB
SNRSignal-to-noiseratioV
IN
=4V
pp
at100kHz86dB
SINADSignal-to-noise+distortionV
IN
=4V
pp
at100kHz85dB
V
IN
=4V
pp
at100kHz90dB
SFDRSpuriousfreedynamicrange
V
IN
=4V
pp
at500kHz88dB
-3dBSmallsignalbandwidth5MHz
EXTERNALVOLTAGEREFERENCEINPUT
ReferencevoltageatREFIN,V
ref
3.94.0964.2V
Referenceresistance
(7)
500kΩ
(1)Idealinputspan,doesnotincludegainoroffseterror.
(2)LSBmeansleastsignificantbit
(3)ThisisendpointINL,notbestfit.
(4)Measuredrelativetoanidealfull-scaleinput[+IN–(–IN)]of4.096V
(5)Thisspecificationdoesnotincludetheinternalreferencevoltageerroranddrift.
(6)Calculatedonthefirstnineharmonicsoftheinputfrequency
(7)Canvary±20%
3
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8411 |
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