This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
怕采样电压超过3V,想在输入之前做个限压环节,想知道28335的ADC采样口输入阻抗大概多少?
这是ADC内部的电路图,你可以参考这个图来计算输入阻抗。