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 MHz6 r" d$ P% S5 ?# ?4 a$ [
----------------------------------------- ( `8 i5 O- w* j+ k: R2 c1. Alan Rich, “Understanding Interference-Type Noise,”Analog Dialogue 16-3, 1982, pages 16-195 O2 C3 j' U( n; R. ]+ K
2. Alan Rich, “Shielding and Guarding,” Analog Dialogue 17-1, 1983, pages 8-13. 9 P( [4 ?* h: i 2 u; t7 \$ Z4 d1 N6 Q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。 5 k4 q$ D$ y$ o. R4 @' D' h( \. w8 h---------------------------------------- 9 c6 c5 X: J1 ~(引用文章) 4 c: ^( |5 f* e5 t# X" S: n1. Alan Rich, “了解干扰类噪音”Analog Dialogue 16卷-3, 1982年, 16-19页 8 W* ^/ K; `$ g/ a! ?2. Alan Rich, “屏蔽与接地”, Analog Dialogue 17卷-1, 1983年, 8-13页.