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精密转换器专区

问答 AD9235的单端输入中的0.33uF电容可否改为电阻

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AD9235的单端输入中的0.33uF电容可否改为电阻

hai235 on Jan 24, 2018

AD9235的单端输入中的0.33uF电容可否改为电阻，

0 hai235 on Jan 24, 2018 6:40 PM

中间提到阻抗匹配问题，信源端阻抗多少才够和后端电路匹配呢
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0 hpkamen on Feb 15, 2018 1:13 AM

不能电容换成电阻，电容为隔直，后端串联的电阻提供偏置电压
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0 hai235 on Feb 27, 2018 4:38 PM

如果采样的是直流电压，不是交流信号呢
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0 hpkamen on Mar 13, 2018 1:49 AM

直流信号为何要采用AD9235呢， AD9235的输入端电容隔直，后端串联的电阻提供偏置给输入
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