精确数字化正弦波的能力是高分辨率AD转换器一个敏感测试项目，本指南探讨了如何搭建测试系统及实现高精度振荡器的方法，分析了AD测试的性能。ApplicationNote132February2011FidelityTestingforA→DConvertersProvingPurityJimWilliamsandGuyHooverIntroductionbridgedesign(A1-A2)adaptedfromworkbyWinfieldHillTheabilitytofaithfullydigitizeasinewaveisasensitiveofHarvardUniversity.TheoriginaldesignsJ-FETgaintestofhighresolutionA→Dconverterfidelity.ThistestcontrolisreplacedwithaLEDdrivenCdSphotocellisola-requiresasinewavegeneratorwithresidualdistortiontor,eliminatingJ-FET
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