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.
PGA204的输入接地,输出端一直有最小400mV左右的偏置,调整6、7脚的滑变也还是有偏置,原理图如下。请教一下大家,有可能是什么问题?
输出400mV偏置,A0~A1接的什么?看你这里是通过jumper来控制增益,没问题。
调节滑变,然后增益A0~A1也进行改变,从1到最大,看下输出如何变化。