Texas Instruments ADS5270 Handleiding

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1

FEATURES

APPLICATIONS

DESCRIPTION

12−Bit

ADC

PLL

S/HSerializer

1xADCLK

6xADCLK

IN1

P

ADCLK

IN1

N

OUT1

P

OUT1

N

12−Bit

ADC

S/H

Serializer

IN2

P

IN2

N

OUT2

P

OUT2

N

12−Bit

ADC

S/HSerializer

IN3

P

IN3

N

OUT3

P

OUT3

N

LCLK

P

LCLK

N

ADCLK

P

ADCLK

N

12xADCLK

12−Bit

ADC

S/HSerializer

IN4

P

IN4

N

OUT4

P

OUT4

N

12−Bit

ADC

S/H

Serializer

IN5

P

IN5

N

OUT5

P

OUT5

N

12−Bit

ADC

S/H

Serializer

IN6

P

IN6

N

OUT6

P

OUT6

N

12−Bit

ADC

S/H

Serializer

IN7

P

IN7

N

OUT7

P

OUT7

N

12−Bit

ADC

S/HSerializer

Reference

IN8

P

IN8

N

REF

T

INT/EXT

V

CM

REF

B

OUT8

P

OUT8

N

Registers

SCLK

SDATA

CS

Control

RESET

PD

ADS5270

www.ti.com

...............................................................................................................................................SBAS293F–JANUARY2004–REVISEDJANUARY2009

8-Channel,12-Bit,40MSPSAnalog-to-DigitalConverter

withSerialLVDSInterface

Anintegratedphaselockloop(PLL)multipliesthe

incomingADCsamplingclockbyafactorof12.This

23

•MaximumSampleRate:40MSPS

high-frequencyLVDSclockisusedinthedata

•12-BitResolution

serializationandtransmissionprocess.Theword

outputofeachinternalADCisserializedand

•NoMissingCodes

transmittedeitherMSBorLSBfirst.Inadditiontothe

•TotalPowerDissipation:

eightdataoutputs,abitclockandawordclockare

InternalReference:888mW

alsotransmitted.Thebitclockisat6xthespeedof

ExternalReference:822mW

thesamplingclock,whereasthewordclockisatthe

•CMOSTechnology

samespeedofthesamplingclock.

•SimultaneousSample-and-Hold

TheADS5270providesinternalreferences,orcan

•70.5dBSNRat10MHzIF

optionallybedrivenwithexternalreferences.Best

performancecanbeachievedthroughtheinternal

•3.3VDigital/AnalogSupply

referencemode.

•SerializedLVDSOutputs

ThedeviceisavailableinaTQFP-80PowerPAD

•IntegratedFrameandBitPatterns

packageandisspecifiedovera–40°Cto+85°C

•OptiontoDoubleLVDSClockOutputCurrents

operatingrange.

•FourCurrentModesforLVDS

•Pin-andFormat-CompatibleFamily

•TQFP-80PowerPAD™Package

•PortableUltrasoundSystems

•TapeDrives

•TestEquipment

•OpticalNetworking

TheADS5270isahigh-performance,40MSPS,

8-channelanalog-to-digitalconverter(ADC).Internal

referencesareprovided,simplifyingsystemdesign

requirements.Lowpowerconsumptionallowsforthe

highestofsystemintegrationdensities.SerialLVDS

(low-voltagedifferentialsignaling)outputsreducethe

numberofinterfacelinesandpackagesize.

RELATEDPRODUCTS

RESOLUTIONSAMPLERATE

MODEL(BITS)(MSPS)CHANNELS

ADS527112508

ADS527212658

ADS527312708

ADS527710658

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2PowerPADisatrademarkofTexasInstruments.

3Allothertrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2004–2009,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties