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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
SLWS162–AUGUST2005
13-bit250mspsanalog-至-digitalconverter
•
IndustrialTemperatureRange=–40
°
Cto85
°
c
•
13-bitresolution
•
250MSPSSampleRate
•
TestandMeasurement
•
snr=68.7dbcat100-mhzifand250msps
•
软件-definedradio
•
sfdr=71dbcat100-mhzifand250msps
•
多-channelbasestationreceivers
•
snr=67.6dbcat230-mhzifand250msps
•
BasestationTXDigitalPredistortion
•
sfdr=78dbcat230-mhzifand250msps
•
CommunicationsInstrumentation
•
2.2v
pp
DifferentialInputVoltage
•
FullyBufferedAnalogInputs
•
ads5424-14-有点,105msps
•
5VAnalogSupplyVoltage
•
ads5423-14-有点,80msps
•
3.3vlvdscompatibleoutputs
•
ads5440-13-有点,210msps
•
totalpowerdissipation:2.1w
•
2'scomplementoutputformat
•
tqfp-80powerpad™package
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.theads5444isbuiltonstateoftheart
texasinstrumentscomplementarybipolarprocess(bicom3x)在thefullindustrial
温度范围(–40
°
Cto85
°
c).
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerpadisatrademarkoftexasinstruments.
productpreviewinformationconcernsproductsintheforma-
copyright©2005,texasinstrumentsincorporated
开发阶段.characteristicdataandother
规范设计目标.texasinstrumentsreservesthe
右更改或中断eseproductswithoutdotice.
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