Texas Instruments ADS5237 Handleiding

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1

FEATURES

DESCRIPTION

APPLICATIONS

10-Bit

Pipelined

ADC

Error

Correction

Logic

Timing/DutyCycleAdjust(PLL)

Internal

Reference

3-State

Output

S/H

D9A

·

·

·

D0A

10-Bit

Pipelined

ADC

Error

Correction

Logic

3-State

Output

S/H

D9B

·

·

·

D0B

IN

A

AV

DD

OE

A

V

DRV

SDATASENSCLKSEL

OVR

A

OVR

B

IN

A

CM

INT/EXT

CLK

DV

A

DV

B

REFT

REFB

IN

B

V

IN

OE

B

STPD

IN

B

ADS5237

V

IN

Serial

Interface

DISABLE_PLL

ADS5237

SBAS420A–AUGUST2007–REVISEDOCTOBER2007

Dual,10-Bit,65MSPS,+3.3V

Analog-to-DigitalConverter

2

•Single+3.3VSupply

•HighSNR:61.7dBFSatf

IN

=5MHz

TheADS5237isadual,high-speed,highdynamic

range,10-bit,pipelinedanalog-to-digitalconverter

•TotalPowerDissipation:

(ADC).Thisdeviceincludesahigh-bandwidth

InternalReference:366mW

sample-and-holdamplifierthatgivesexcellent

ExternalReference:330mW

spuriousperformanceuptoandbeyondtheNyquist

•InternalorExternalReference

rate.Thedifferentialnatureofthesample-and-hold

amplifierandADCcircuitryminimizeseven-order

•LowDNL:±0.1LSB

harmonicsandgivesexcellentcommon-modenoise

•FlexibleInputRange:1.5V

PP

to2V

PP

immunity.

•TQFP-64Package

TheADS5237providesforsettingthefull-scalerange

oftheconverterwithoutanyexternalreference

circuitry.Theinternalreferencecanbedisabled,

•CommunicationsIFProcessing

allowinglow-drive,externalreferencestobeusedfor

•CommunicationsBaseStations

improvedtrackinginmultichannelsystems.

•TestEquipment

TheADS5237providesanover-rangeindicatorflag

•MedicalImaging

toindicateaninputsignalthatexceedsthefull-scale

•VideoDigitizing

inputrangeoftheconverter.Thisflagcanbeusedto

reducethegainoffront-endgaincontrolcircuitry.

•CCDDigitizing

Thereisalsoanoutputenablepintoallowfor

multiplexingandtestingonaprintedcircuitboard

(PCB).

TheADS5237employsdigitalerrorcorrection

techniquestoprovideexcellentdifferentiallinearityfor

demandingimagingapplications.TheADS5237is

availableinaTQFP-64package.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2007,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties