希望专家尽量通俗的讲解一下,或者推荐一些资料供学习,谢谢
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SAR ADC 输入端需要注意的一点就是,SAR ADC 在采样的时,需要从输入端的信号源,抽取电荷。因为,在输入端要加一个RC电路,C的主要作用就是给ADC提供电荷。SAR ADC的输入端还是很讲究的。
详细信息可以参考TI的一个PPT
https://docs.google.com/viewer?a=v&q=cache:uzpQvYgexSMJ:e2e.ti.com/cfs-file.ashx/__key/telligent-evolution-components-attachments/00-14-01-00-00-26-92-11/a2d_5F00_in_5F00_few_5F00_steps_5F00_final.ppt+&hl=zh-CN&gl=us&pid=bl&srcid=ADGEEShe1Q7OQwcJrozoZtsXUh1tTZMXNfierNngGV-O_jLHLVepfBwN0O8k08pbeyhlO9f9l07Hb5zhpFE1fZNCAB7Gg7aJxI5Sh_mm5s85RbsLGy_5yXmySHq4KRHJ6lBCuPrAQ3rG&sig=AHIEtbQNJ_WO9Z2PosuFhEypcsAu95mbgQ