Understanding Integral Non-Linearity Errors

Abstract:Tounderstandtheeffectsofintegralnon-linearityerrors,themoststraightforwardapproachistoanalyzeasimplesinewaveandapplywell-knowntrigonometricidentitiestoanon-ideal,analog-to-digitaloutputtransferfunction,whichcontainsanINLerror.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