Texas Instruments ADC14DC080 Bedienungsanleitung

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14-Bit Pipelined

ADC Core

Output

Buffers

Reference

A

Reference

B

Timing

Generation

V

IN

A

214

14

DA0-DA13

CHANNEL A

14-Bit Pipelined

ADC Core

Output

Buffers

V

IN

B

214

DB0-DB13

CHANNEL B

DRDY

CLK

V

REF

Ref.Decoupling

Ref.Decoupling

3

3

14

ADC14DC080

www.ti.com

SNAS463B–SEPTEMBER2008–REVISEDAPRIL2013

ADC14DC080Dual14-Bit,80MSPSA/DConverterwithCMOSOutputs

CheckforSamples:ADC14DC080

1

FEATURES

DESCRIPTION

TheADC14DC080isahigh-performanceCMOS

2

•InternalSample-and-HoldCircuitandPrecision

analog-to-digitalconvertercapableofconvertingtwo

Reference

analoginputsignalsinto14-bitdigitalwordsatrates

•LowPowerConsumption

upto80MegaSamplesPerSecond(MSPS).These

•ClockDutyCycleStabilizer

convertersuseadifferential,pipelinedarchitecture

withdigitalerrorcorrectionandanon-chipsample-

•Single+3.0VSupplyOperation

and-holdcircuittominimizepowerconsumptionand

•Power-DownMode

theexternalcomponentcount,whileproviding

•OffsetBinaryor2'sComplementOutputData

excellentdynamicperformance.Auniquesample-

Format

and-holdstageyieldsafull-powerbandwidthof1

GHz.TheADC14DC080maybeoperatedfroma

•60-PinWQFNPackage,(9x9x0.8mm,0.5mm

single+3.0Vpowersupply.Apower-downfeature

Pin-Pitch)

reducesthepowerconsumptiontoverylowlevels

whilestillallowingfastwake-uptimetofulloperation.

APPLICATIONS

Thedifferentialinputsprovidea2Vfullscale

differentialinputswing.Astable1.2Vinternalvoltage

•HighIFSamplingReceivers

referenceisprovided,ortheADC14DC080canbe

•WirelessBaseStationReceivers

operatedwithanexternal1.2Vreference.Output

•TestandMeasurementEquipment

dataformat(offsetbinaryversus2'scomplement)

•CommunicationsInstrumentation

anddutycyclestabilizerarepin-selectable.Theduty

cyclestabilizermaintainsperformanceoverawide

•PortableInstrumentation

rangeofclockdutycycles.

KEYSPECIFICATIONS

TheADC14DC080isavailableina60-leadWQFN

packageandoperatesovertheindustrialtemperature

•Resolution14Bits

rangeof−40°Cto+85°C.

•ConversionRate80MSPS

•SNR(f

IN

=170MHz)71dBFS(typ)

•SFDR(f

IN

=170MHz)83dBFS(typ)

•FullPowerBandwidth1GHz(typ)

•PowerConsumption600mW(typ)

BlockDiagram

1

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TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2008–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

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