你好专家,请问同一个ADC下的4个通道,是不是有独立的采样保持器?手册上没有找到。谢谢
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您好,
是4个模拟输入通道共用一个采样保持器。ADS9817 集成了2个SAR ADC,4路模拟输入通过MUX进入SAR ADC,而采样保持电路是属于SAR ADC的一部分。通过下面功能框图可以看出: