Texas Instruments ADS5231 Handleiding

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FEATURESDESCRIPTION

APPLICATIONS

12-Bit

Pipelined

ADC

Error

Correction

Logic

Timing/DutyCycle

Adjust(PLL)

Internal

Reference

3-State

Output

S/H

D11A

·

·

·

D0A

12-Bit

Pipelined

ADC

Error

Correction

Logic

3-State

Output

S/H

D11B

·

·

·

D0B

AVDDOE

A

VDRVSDATASENSCLKSEL

OVR

A

OVR

B

IN

A

CM

IN

A

INT/EXT

CLK

DV

A

DV

B

REF

T

REF

B

IN

B

V

IN

OE

B

STPD

IN

B

ADS5231

V

IN

Serial

Interface

DISABLE_PLL

ADS5231

SBAS295A–JULY2004–REVISEDJANUARY2007

Dual,12-Bit,40MSPS,+3.3V

Analog-to-DigitalConverter

•Single+3.3VSupply

TheADS5231isadual,high-speed,highdynamic

range,12-bitpipelinedanalog-to-digitalconverter

•HighSNR:70.7dBFSatf

IN

=5MHz

(ADC).Thisconverterincludesahigh-bandwidth

•TotalPowerDissipation:

sample-and-holdamplifierthatgivesexcellent

InternalReference:321mW

spuriousperformanceuptoandbeyondtheNyquist

ExternalReference:285mW

rate.Thedifferentialnatureofthesample-and-hold

•InternalorExternalReference

amplifierandADCcircuitryminimizeseven-order

harmonicsandgivesexcellentcommon-modenoise

•LowDNL:±0.3LSB

immunity.

•FlexibleInputRange:1.5V

PP

to2V

PP

TheADS5231providesforsettingthefull-scale

•TQFP-64Package

rangeoftheconverterwithoutanyexternalreference

circuitry.Theinternalreferencecanbedisabled,

allowinglow-drive,externalreferencestobeusedfor

•CommunicationsIFProcessing

improvedtrackinginmultichannelsystems.

•CommunicationsBaseStations

TheADS5231providesanover-rangeindicatorflag

•TestEquipment

toindicateaninputsignalthatexceedsthefull-scale

•MedicalImaging

inputrangeoftheconverter.Thisflagcanbeusedto

•VideoDigitizing

reducethegainoffront-endgaincontrolcircuitry.

Thereisalsoanoutputenablepintoallowfor

•CCDDigitizing

multiplexingandtestingonaprintedcircuitboard

(PCB).

TheADS5231employsdigitalerrorcorrection

techniquestoprovideexcellentdifferentiallinearity

fordemandingimagingapplications.TheADS5231is

availableinaTQFP-64package.

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2004–2007,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties