We are experiencing EMI issues. We have implemented the AD recommened EMI filter, see attached.
Our problems are with the IEC 61000-4-5 surge test.
Is there a maximum resistance/capacitance we can use Ain/Agnd? We are buffered and using a gain=2.
When the buffer is enabled, any resistance/capacitance can be connected to the analog input pins.
Adding some external components such as diodes or varistors may also help.
We are looking into this. We'll get back to you as soon as possible.
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