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.

LMP91200 Error during conducted EMI test

Other Parts Discussed in Thread: LMP91200

We are using LMP91200 in our circuit for the pH sensor interface. Now it is in final design verification of EMI and EMC test.

 

During Conducted immunity test, we are getting error in the pH reading almost 1pH. but our accepted range is +/- 0.1pH.

  • Hi Suresh,

    in the conducted immunity test, which pin has given less immunity ? In case of VDD or VREF I suggest to put some ferrite in series wiht the pin.

    Have you used the guards around the Input trace of the pH buffer ?

    regards,

    Domenico