¨
特性
产品
描述
12− 位
ADC
PLL
s/h Serializer
1X ADCLK
6X ADCLK
IN1
P
一个DCLK
在1
N
输出1
P
输出1
N
12− 位
ADC
s/h
Serializer
IN2
P
在2
N
输出2
P
输出2
N
12− 位
ADC
s/h
Serializer
IN3
P
在3
N
输出3
P
输出3
N
LCLK
P
LCLK
N
模数转换器LK
P
模数转换器LK
N
12− 位
ADC
s/h
Serializer
IN4
P
在4
N
输出4
P
输出4
N
Reference
REF
T
int/eXT
V
CM
REF
B
寄存器
SCLK
SDATA
CS
Control
重置
PD
ADS5240
SBAS326C–JUNE2004–REVISEDDECEMBER2004
4-频道,12-位,40mspsadc
withSerialLVDSInterface
Anintegratedphaselockloopmultipliestheincoming
adcsamplingclockbyafactorof12.this12xclock
•
maximumsamplerate:40msps
isusedintheprocessofserializingthedataoutput
•
12-bitresolution
fromeachchannel.the12xclockisalsousedto
generatea1xanda6xclock,bothofwhichare
•
NoMissingCodes
transmittedaslvdsclockoutputs.the6xclockis
•
powerdissipation:607mw
denotedbythedifferentialpairLCLK
P
andLCLK
N
,
•
CMOSTechnology
whilethe1xclockisdenotedbyADCLK
P
和
•
simultaneoussample-和-支撑
ADCLK
N
.thewordoutputofeachadcchannelcan
betransmittedeitherasmsborlsbfirst.thebit
•
70.5dbfssnrat10mhzif
coincidingwiththerisingedgeofthe1xclockoutput
•
InternalandExternalReferences
isthefirstbitoftheword.dataistobelatchedbythe
•
3.3vdigital/analogsupply
receiveronboththerisingandfallingedgesofthe6x
时钟.
•
SerializedLVDSOutputs
•
IntegratedFrameandBitPatterns
theads5240providesinternalreferences,orcan
optionallybedrivenwithexternalreferences.最好的
•
MSBandLSBFirstModes
performancecanbeachievedthroughtheinternal
•
OptiontoDoubleLVDSClockOutputCurrents
referencemode.
•
管脚-andformat-compatiblefamily
thedeviceisavailableinanhtqfp-64powerpad
•
htqfp-64powerpad™package
packageandisspecifiedovera-40
°
Cto+85
°
C
operatingrange.
•
PortableUltrasoundSystems
•
TapeDrives
•
TestEquipment
•
OpticalNetworking
theads5240isahigh-效能,4-频道,
40mspsanalog-至-digitalconverter(模数转换器).内部的
referencesareprovided,simplifyingsystemdesign
(所需的)东西.lowpowerconsumptionallowsforthe
highestofsystemintegrationdensities.seriallvds
(低-voltagedifferentialsignaling)outputsreducethe
numberofinterfacelinesandpackagesize.
RELATEDPRODUCTS
RESOLUTIONSAMPLERATE
模型(位)(msps)途径
ADS5242
(1)
12654
(1)availableq12005.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
allothertrademarksarethepropertyoftheirrespectiveowners.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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