In recent issues, Analog Dialogue has dealt extensively with topics in shielding and grounding,[1,2] emphasizing the techniques needed to protect the integrity and precision of analog signals in the dc and audio-frequency domain from interfering signals, whether at line frequency or at much higher frequencies. To complement those articles, we suggest here the elements of good practice for high-resolution “video speed” converters, i.e., converters of 10-bit or greater resolution, operating at word rates above 1 MHz " E r5 _9 X+ s* O+ E$ o----------------------------------------- % ?; i& ?9 o. I1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-19* i( Y2 P* c! V& J7 `) C& n6 J
2. Alan Rich, “Shielding and Guarding,” Analog Dialogue 17-1, 1983, pages 8-13.6 o- I. l% ~9 X/ W% V
# T; s5 v3 l* m# ^, A2 m9 L1 i近几期的Analog Dialogue 着重对屏蔽和接地问题进行了广泛的探讨,强调这些技术在直流和音频范围内对保证模拟信号的完整,精确,免受工频或更高频率的干扰方面将起到作用。这里我们建议将本文中有益于高分辨率“视频”转换器,即10位或10位以上精度,字节速率在1MHz以上的方法作为对已发表文章的补充。- @" M u, }( _% g
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(引用文章)( \. C7 R0 l' U1 U
1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页 7 \: p% L7 W$ k6 ]2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页.