Texas Instruments ADS8413 Handleiding
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FEATURESAPPLICATIONS
DESCRIPTION
ADS8413
SLAS490–OCTOBER2005
16-BIT,2-MSPS,LVDSSERIALINTERFACE,
SARANALOG-TO-DIGITALCONVERTER
•MedicalInstrumentation
•2-MHzSampleRate
•HIgh-SpeedDataAcquisitonSystems
•16-BitResolution
•High-SpeedClose-LoopSystems
•SNR92dBat10kHzI/P
•Communication
•THD–107dBat10kHzI/P
•±1LSBTyp,±2LSBINLMax
•+0.7/–0.5LSBTyp,+1.5/–1LSBDNLMax
TheADS8413isa16-bit,2-MSPS,analog-to-digital
•UnipolarDifferentialInputRange:–4V
(A/D)converterwith4-Vinternalreference.The
to4V
deviceincludesacapacitorbasedSARA/Dconverter
•InternalReference
withinherentsampleandhold.
•InternalReferenceBuffer
TheADS8413alsoincludesa200-Mbps,LVDS,
serialinterface.Thisinterfaceisdesignedtosupport
•200-MbpsLVDSSerialInterface
daisychainingorcascadingofmultipledevices.A
•Optional200-MHzInternalInterfaceClock
selectable16-/8-bitdataframemodeenablestheuse
•16-/8-BitDataFrame
ofasingleshiftregisterchip(SN65LVDS152)for
•ZeroLatencyatFullSpeed
convertingthedatatoparallelformat.
•PowerDissipation:290mWat2MSPS
TheADS8413unipolardifferentialinputrange
supportsadifferentialinputswingof–V
ref
to+V
ref
with
•NapMode(125mWPowerDissipation)
acommon-modevoltageof+V
ref
/2.
•PowerDown(5µW)
Thenapfeatureprovidessubstantialpowersaving
•48-PinQFNPackage
whenusedatlowerconversionrates.
TheADS8413isavailableina48-pinQFNpackage.
High-SpeedSARConverterFamily
Type/Speed500kHz~600kHz750kHZ1MHz1.25MHz2MHz3MHz4MHz
ADS8383ADS8381
18-BitPseudo-Diff
ADS8380(S)
18-BitPseudo-Bipolar,FullyDiffADS8382(S)
ADS8411
16-BitPseudo-DiffADS8370(S)ADS8371ADS8401/05
ADS8410
(S-LVDS)
ADS8412
16-BitPseudo-Bipolar,FullyDiffADS8372(S)ADS8402/06
ADS8413
(S-LVDS)
14-BitPseudo-DiffADS7890(S)ADS7891
12-BitPseudo-DiffADS7881
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2005,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
www.ti.com
CSTART
+ IN
CDAC
Core SupplyI/O Supply
SAR
LVDS I/O
CMOS I/O
Mode
Selection
Conversion
and
Control Logic
Clock
Comparator
4 V Internal
Reference
+
−
+ VAAGND
+ VBDBDGND
SYNC_O, CLK_O, SDO
SYNC_I, CLK_I, SDI
CONVST
BUS BUSY
RD
BUSY
CS
LAT_Y/N
BYTE,
MODE_C/D,
CLK_I/E
, PD, NAP
− IN
REFIN
REFOUT
ABSOLUTEMAXIMUMRATINGS
ADS8413
SLAS490–OCTOBER2005
ORDERINGINFORMATION
(1)
MAXIMUMMAXIMUMNOMISSING
TRANSPORT
INTEGRALDIFFERENTIALCODESATPACKAGEPACKAGETEMPERATUREORDERING
MODELMEDIA
LINEARITYLINEARITYRESOLUTIONTYPEDESIGNATORRANGEINFORMATION
QUANTITY
(LSB)(LSB)(BIT)
ADS8413IBRGZT250
48pin–40°C
ADS8413lB±21.5/–116RGZ
QFNto85°C
ADS8413IBRGZR2000
ADS8413IRGZT250
48pin–40°C
ADS8413l±43/–116RGZ
QFNto85°C
ADS8413IRGZR2000
(1)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTI
websiteatwww.ti.com.
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
(1)
UNIT
+INtoAGND–0.3Vto+VA+0.3V
-INtoAGND–0.3Vto+VA+0.3V
+VAtoAGND–0.3to7V
+VBDtoBDGND–0.3to7V
DigitalinputvoltagetoGND–0.3Vto(+VBD+0.3V)
DigitaloutputtoGND–0.3Vto(+VBD+0.3V)
Operatingtemperaturerange–40°Cto85°C
Storagetemperaturerange–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)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperating
conditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
2
www.ti.com
SPECIFICATIONS
ADS8413
SLAS490–OCTOBER2005
T
A
=–40°Cto85°C,+VA=5V,+VBD=5Vor3.3V,V
ref
=4.096V,f
sample
=2MHz(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
ANALOGINPUT
Full-scaleinputvoltagespan
(1)
+IN–(–IN)–V
ref
V
ref
V
+IN–0.2V
ref
+0.2
AbsoluteinputvoltagerangeV
–IN–0.2V
ref
+0.2
Inputcommon-modevoltagerangeV
ref
/2–0.2V
ref
/2V
ref
/2+0.2V
C
i
Inputcapacitance25pF
Inputleakagecurrent500pA
SYSTEMPERFORMANCE
Resolution16Bits
ADS8413IB16
NomissingcodesBits
ADS8413I16
ADS8413IB–2±12
INLIntegrallinearity
(2)
LSB
(3)
ADS8413I–4.0±24.0
ADS8413IB–10.7/–0.51.5
DNLDifferentiallinearityLSB
(3)
ADS8413I–1.01.5/–0.83
ADS8413IB–1±0.21
E
O
OffseterrorExternalreferencemV
ADS8413I–3.0±13.0
ADS8413IB–0.1±0.030.1
E
G
Gainerror
(4)
Externalreference%ofFS
ADS8413I–0.15±0.10.15
Withcommonmodeinputsignal=200
CMMRCommon-moderejectionratio60dB
mV
p-p
at1MHz
PSRRPowersupplyrejectionratioAtFFF0
H
outputcode80dB
SAMPLINGDYNAMICS
+VBD=5V360391
Conversiontimens
+VBD=3V391
+VBD=5V100
Acquisitiontimens
+VBD=3V100
Maximumthroughputratewithorwithoutlatency2.0MHz
Aperturedelay20ns
Aperturejitter10psec
Stepresponse50ns
Overvoltagerecovery50ns
DYNAMICCHARACTERISTICS
V
IN
0.5dBbelowFSat10kHz–107
THDTotalharmonicdistortion
(5)
V
IN
0.5dBbelowFSat100kHz–95dB
V
IN
0.5dBbelowFSat0.5MHz–90
V
IN
0.5dBbelowFSat10kHz92
SNRSignal-to-noiseratioV
IN
0.5dBbelowFSat100kHz90dB
V
IN
0.5dBbelowFSat0.5MHz89
V
IN
0.5dBbelowFSat10kHz92
SINADSignal-to-noiseanddistortionV
IN
0.5dBbelowFSat100kHz86dB
V
IN
0.5dBbelowFSat0.5MHz84
V
IN
0.5dBbelowFSat10kHz–113
SFDRSpuriousfreedynamicrangeV
IN
0.5dBbelowFSat100kHz–98dB
V
IN
0.5dBbelowFSat0.5MHz–93
–3dBSmallsignalbandwidth37.5MHz
(1)Idealinputspan;doesnotincludegainoroffseterror.
(2)ThisisendpointINL,notbestfit.
(3)Leastsignificantbit
(4)Measuredrelativetoactualmeasuredreference.
(5)Calculatedonthefirstnineharmonicsoftheinputfrequency.
3
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8413 |
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