标签: max115

max115datesheet19-1928;Rev0;1/01KITATIONEVALUBLEAVAILA2x4-Channel,Simultaneous-Sampling12-BitADCs________________GeneralDescription____________________________FeaturesMAX115/MAX116TheMAX115/MAX116arehigh-speed,multichannel,oFourSimultaneous-SamplingT/HAmplifierswith12-bitdata-acquisitionsystems(DAS)withsimultane-TwoMultiplexedInputs(EightSingle-Endedoustrack/holds(T/Hs).Thes……

文中介绍了一种将12位Ａ／Ｄ转换器MAX115用于遥测系统的设计方案，用以提高电网数据的处理效率，增加系统实时性，该方案省去了传统多路A／D转换电路中的采样／保持电路，简化了硬件电路设计，实现了真正的同时采样。……

Abstract:Multichannelanalog-to-digitalconverters(ADCs)typicallyconverteachinputchannelsequentiallyusinganinputmultiplexer.Certainapplicationsrequiresimultaneousconversions,especiallywhenphaseinformationexistsbetweendifferentchannels.Forexample,wirelessapplicationsrequireIandQchannelstobeconvertedatthesameinstance,motorcontrolandpowermonitoringrequiresvoltageandcurrentmeasurementsandthephaseanglebetweenthem.Inthepast,simultaneoussamplingmeantthedesignerhadtousemultipleADCs,andperformparallelconversionsoneachchannel.SimultaneoussamplingADCsnowperformthetaskusingmultipleT/Htosampletheinputsatthesameinstant,thenperformtheconversionforeachchannel.Maxim>AppNotes>A/DandD/ACONVERSION/SAMPLINGCIRCUITSKeywords:simultaneoussamplingADC,analogtodigitalconverters,ADCs,analogdigital,MAX126,MAX126,Oct01,2000MAX115,MAX116,T/H,MUX,simultaneoussampling,motorcontrol,I/Qsampling,wireless,I/Q,Coriolis,Mass-flow,powerfaultAPPLICATIONNOTE290ADCsforSimultaneousSamplingAbstract:Multichannelanalog-to-digitalconverters(ADCs)typicallyconverteachinputchannelsequentiallyusinganinputmultiplexer.Certainapplicationsrequiresimultaneousconversions,especiallywhenphaseinformationexistsbetweendifferentchannels.Forexample,wirelessapplicationsrequireIandQchannelstobeconvertedatthesameinstance,motorcontrolandpowermonitoringrequiresvoltageandcurrentmeasurementsan……