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.

INA188: 多个传感器信号相互干扰

Part Number: INA188
Other Parts Discussed in Thread: LMP7721

你好TI工程师,我是做水质检测的,由于集成度较高,传感器之间的距离比较近(2-5cm)。有3个传感器的信号会相互干扰,其中pH受影响比较大。

手头有多余的ina188,就用ina188做了一个pH检测的电路。这个电路好像不能用,接上pH传感器后VRef的基准电压会被改变。

请问有没有更好的信号隔离方案