Embarrassing problem

Maybe I should have pointed out I was just suggesting parts, but up to the OP to examine the details himself

The real point is that the layout was fixed. Well, then change the part instead :blush:

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CMOS opamp usually don’t have this kind of input differential voltage protection diodes, which usually occurs at the bipolar input opamps. These diodes are here due to the input chopper for this particular opamp I suppose.