创建快速线路瞬变
其输入供应的快速瞬态集成电路的反应往往是重要的测量,以。如果下测试(DUT)的设备是一种微功率设备,并且不需要输入的电容,只需用50ω终止函数发生器驱动器电源供应的输入。不过,由于目前的需求和电容的增加,这不再提供可接受的结果。
Maxim>AppNotes>GENERALENGINEERINGTOPICSMEASUREMENTCIRCUITSMISCELLANEOUSCIRCUITSSIGNALGENERATIONCIRCUITSKeywords:CreatingFastLineTransientsFeb01,2001APPLICATIONNOTE869CreatingFastLineTransientsAnintegratedcircuit'sresponsetofasttransientsonitsinputsupplyisoftenanimportantmeasurementtotake.Ifthedeviceundertest(DUT)isamicro-powerdeviceanddoesn'trequireaninputbypasscapacitor,simplydrivethepower-supplyinputwitha50terminatedfunctiongenerator.However,asthecurrentrequirementsandcapacitanceareincreased,thisnolongerprovidesacceptableresults.Onesolutiontoobtainingthisfasttransientintolargecapacitiveloadsistomakeanopen-loopbuffer.B
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