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。 Application Note 132 February 2011 Fidelity Testing for A→D Converters Proving Purity Jim Williams and Guy Hoover Introduction bridge design (A1-A2) adapted from work by Winfield Hill The ability to faithfully digitize a sine wave is a sensitive of Harvard University. The original designs J-FET gain test of high resolution A→D converter fidelity. This test control is replaced with a LED driven CdS photocell isola- requires a sine wave generator with residual distortion tor, eliminating J-FET ……