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参考
计时
clk
OVR d[12:0]
clk
5
干燥
VREF
艾因
艾因
TH1
5 5
Σ
DAC2
ADC2
ADC3
Σ
DAC1
ADC1
av
dd
设计验证
dd
地
数字 错误 校正
+
−
+
−
b0061-01
DRYOVR
A1 TH2 A2 A3TH3
ADS5444
SLWS162A–AUGUST2005–REVISEDFEBRUARY2006
13-bit250mspsanalog-至-digitalconverter
•
TestandMeasurement
•
13-bitresolution
•
软件-definedradio
•
250MSPSSampleRate
•
多-channelbasestationreceivers
•
snr=69dbcat100-mhzifand250msps
•
BasestationTxDigitalPredistortion
•
sfdr=76dbcat100-mhzifand250msps
•
CommunicationsInstrumentation
•
snr=67.7dbcat230-mhzifand250msps
•
sfdr=77dbcat230-mhzifand250msps
•
2.2v
pp
DifferentialInputVoltage
•
ads5424-14-有点,105mspsadc
•
FullyBufferedAnalogInputs
•
ads5423-14-有点,80mspsadc
•
5VAnalogSupplyVoltage
•
ads5440-13-有点,210mspsadc
•
LVDSCompatibleOutputs
•
totalpowerdissipation:2w
•
OffsetBinaryOutputFormat
•
tqfp-80powerpad™package
•
PinCompatiblewiththeADS5440
•
IndustrialTemperatureRange=–40
°
Cto85
°
c
theads5444isa13-bit250mspsanalog-至-digitalconverter(adc)thatoperatesfroma5vsupply,同时
providinglvds-compatibledigitaloutputsfroma3.3vsupply.theads5444inputbufferisolatestheinternal
切换onboardtrackandhold(t&放大器;h)fromdisturbingthesignalsource.aninternalreferencegenerator
isalsoprovidedtofurthersimplifythesystemdesign.theads5444hasoutstandinglownoiseandlinearityover
输入频率.
theads5444isavailableinan80-pintqfppowerpad™package.theads5444isbuiltonastateoftheart
texasinstrumentscomplementarybipolarprocess(bicom3x)在thefullindustrial
温度范围(–40
°
Cto85
°
c).
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005–2006,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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