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涉及
定时
CLK
OVR d[12:0]
CLK
5
DRY
VREF
AIN
AIN
TH1
5 5
Σ
DAC2
ADC2
ADC3
Σ
DAC1
ADC1
AV
DD
DV
DD
地
数字的 错误 纠正
+
−
+
−
b0061-01
DRYOVR
A1 TH2 A2 A3TH3
ADS5444
SLWS162–AUGUST2005
13-bit250mspsanalog-至-digitalconverter
•
IndustrialTemperatureRange=–40
°
Cto85
°
C
•
13-bitresolution
•
250MSPSSampleRate
•
TestandMeasurement
•
snr=68.7dbcat100-mhzifand250msps
•
软件-definedradio
•
sfdr=71dbcat100-mhzifand250msps
•
multi-channelbasestationreceivers
•
snr=67.6dbcat230-mhzifand250msps
•
BasestationTXDigitalPredistortion
•
sfdr=78dbcat230-mhzifand250msps
•
CommunicationsInstrumentation
•
2.2v
PP
DifferentialInputVoltage
•
FullyBufferedAnalogInputs
•
ads5424-14-位,105msps
•
5VAnalogSupplyVoltage
•
ads5423-14-位,80msps
•
3.3vlvdscompatibleoutputs
•
ads5440-13-位,210msps
•
totalpowerdissipation:2.1w
•
2'scomplementoutputformat
•
tqfp-80powerpad™package
theads5444isa13-bit250mspsanalog-至-digitalconverter(模数转换器)thatoperatesfroma5vsupply,当
providinglvds-compatibledigitaloutputsfroma3.3vsupply.theads5444inputbufferisolatestheinternal
switchingoftheonboardtrackandhold(t&放大;h)fromdisturbingthesignalsource.aninternalreferencegenerator
isalsoprovidedtofurthersimplifythesystemdesign.theads5444hasoutstandinglownoiseandlinearityover
inputfrequency.
theads5444isavailableinan80-pintqfppowerpad™package.theads5444isbuiltonstateoftheart
texasinstrumentscomplementarybipolarprocess(bicom3x)andisspecifiedoverthefullindustrial
temperaturerange(–40
°
Cto85
°
c).
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productpreviewinformationconcernsproductsintheforma-
copyright©2005,texasinstrumentsincorporated
tiveordesignphaseofdevelopment.characteristicdataandother
specificationsaredesigngoals.texasinstrumentsreservesthe
righttochangeordiscontinuetheseproductswithoutnotice.
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