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.

LMP7721应用于pH电流放大器为什么使用三线?

Other Parts Discussed in Thread: LMP7721, LMP7715

这里应该是实现pH检测得到的电流进行放大的电路。上面的LMP7721实现跨阻放大器的效果,但是下面这个LMP7715是什么功能。在TRIAX处外壳接地为了屏蔽干扰?里面第二层是实现什么功能的?