Texas Instruments ADS4249 Handleiding
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ADS4249
14-bit ADC
INP_A
INM_A
Sampling
Circuit
14-bit ADC
INP_B
INM_B
Sampling
Circuit
CLKP
CLKM
DA0P
DA0M
DA12P
DA12M
DB0P
DB0M
DB12P
DB12M
CLKOUTP
CLKOUTM
CLK
Gen
ReferenceVCM
LVDS
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Design
ADS4249
SBAS534E–JULY2011–REVISEDJANUARY2016
ADS4249Dual-Channel,14-Bit,250-MSPSUltralow-PowerADC
1Features2Applications
1
•MaximumSampleRate:250MSPS
•WirelessCommunicationsInfrastructure
•Ultra-LowPowerwithSingle1.8-VSupply:•SoftwareDefinedRadios
•PowerAmplifierLinearization
–560-mWTotalPowerat250MSPS
•HighDynamicPerformance:
3Description
–80-dBcSFDRat170MHz
TheADS4249isamemberoftheADS42xxultralow-
–71.7-dBFSSNRat170MHz
powerfamilyofdual-channel,12-bitand14-bit
•Crosstalk:>90dBat185MHz
analog-to-digitalconverters(ADCs).Innovative
designtechniquesareusedtoachievehighdynamic
•ProgrammableGainupto6dBfor
performanceandconsumeextremelylowpowerwith
SNR/SFDRTrade-off
a1.8-Vsupply.ThistopologymakestheADS4249
•DCOffsetCorrection
well-suitedformulti-carrier,wide-bandwidth
•OutputInterfaceOptions:
communicationsapplications.
–1.8-VParallelCMOSInterface
TheADS4249hasgainoptionsthatcanbeusedto
–DoubleDataRate(DDR)LVDSwith
improveSFDRperformanceatlowerfull-scaleinput
ProgrammableSwing:
ranges.Thisdevicealsoincludesadcoffset
correctionloopthatcanbeusedtocanceltheADC
–StandardSwing:350mV
offset.BothDDRLVDSandparallelCMOSdigital
–LowSwing:200mV
outputinterfacesareavailableinacompactVQFN-64
•SupportsLowInputClockAmplitude
PowerPAD™package.
Downto200mV
PP
Thedeviceincludesinternalreferencesandthe
•Package:9-mm×9-mm,64-PinVQFNPackage
traditionalreferencepinsandassociateddecoupling
capacitorshavebeeneliminated.TheADS4249is
specifiedovertheindustrialtemperaturerange
(–40°Cto85°C).
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
ADS4249VQFN(64)9.00mm×9.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
ADS4249BlockDiagram
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS4249 |
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