标签: afe

Abstract:Thefragilecurrent-shuntresistorintheanalogfrontendofanisolated0–20mAprecisioncurrentloopcanbeprotectedbyafastfuseoranautomaticcurrent-limitingswitch.Thecircuitshown,however,isfasterthanafuse,requiresnoreplacement,and(unliketheswitch)providesmicroprocessorcontrolwithanoptiontologthefaultevents.Thecircuitincludesacomparator(MAX9910),amicroprocessorsupervisorwithwatchdogtimer(MAX6706),aD-typeflip-flop,anNORgate,anORgate,andasolid-staterelay.Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4850Maxim>Designsupport>Appnotes>MicroprocessorSupervisorCircuits>APP4850Maxim>Designsupport>Appnotes>ProtectionandIsolation>APP4850Keywords:0-20mAcurrentloop,analogfrontend,AFE,current-shuntresistor,shuntprotectionFeb15,2011APPLICATIONNOTE4850MicrocontrollerControlsCurrent-LoopAFEProtectionBy:AnatolyAndrusevichAbstract:Thefragilecurrent-shuntresistorintheanalogfrontendofanisolated0……

MAX2980电力线通信模拟前端(AFE)集成电路(IC)是一款基于先进的CMOS工艺造就的器件，具有高性能和低成本。……

MAX19700是超低功耗、混合信号模拟前端(AFE)，设计用于TD-SCDMA手机和数据卡。……