理解积分非线性误差

摘要：为了了解积分非线性误差的影响，最简单的方法是分析一个简单的正弦波和著名的三角身份申请不理想，从模拟到数字输出的传递函数，其中包含的INL错误。

Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsFilterCircuits(Analog)Keywords:ADCs,analogtodigital,atod,INL,errors,intermodulationdistortion,linearity,lineartimeSep29,2003invariant,LTI,integralnon-linearity,DSP,signalprocessing,superposition,convertersAPPLICATIONNOTE2395UnderstandingIntegralNon-LinearityErrorsAbstract:Tounderstandtheeffectsofintegralnon-linearityerrors,themoststraightforwardapproachistoanalyzeasimplesinewaveandapplywell-knowntrigonometricidentitiestoanon-ideal,analog-to-digitaloutputtransferfunction,whichcontainsanINLerror.Withanidealsystem,asingle-tonesinewavewithamplitudeAandfrequencyfo,X(t)=Asin(2πfot)SamplingwithanADCwithaperiodofTresultsi