摘要:通过增加电压倍增器和电压型逆变器,采用单3V或5V电源可以产生必要的电压,以提高双电压模拟开关的性能。具有较高的电源和范围更广,电阻和计时性能得到加强。Maxim>AppNotes>AnalogswitchesandmultiplexersKeywords:analogswitches,lowvoltage,chargepump,voltageregulator,powersupply,switchingtime,transitiontime,analogswitch,Jul09,1998powersuppliesAPPLICATIONNOTE130Howdual-supplyanalogswitchescanoperatewithasingle3Vor5VsupplyAbstract:Byaddingavoltagedoublerandvoltageinverter,asingle3Vor5Vpowersupplycanproducethevoltagesnecessarytoimprovetheperformanceonadualvoltageanalogswitch.Withthehigherpowersuppliesandwiderrange,theon-resistanceandtimingperformanceareenhanced.Byaddingasinglecomponenttoa3V-onlyor5V-onlyboard,youcanoperateconventionalCMOSanalogswitcheswithperformanceapproachingthatspecifiedwithdual±15Vsupplies.Thissimplemo
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