I'm new to PCB design, and looking for some advice. I designed a PCB shield and I'm seeing a lot of noise in my differentiator circuit. The circuit will run perfectly for about 2 min and then all of the sudden, a bunch of noise will disrupt the reading.
The circuit itself works just fine as tested on a breadboard, but not when its on the PCB. Not sure if this helps, but I've attached an image of the Board schematic as well.
I'm worried about crosstalking and temperature issues with temperature. I'm not sure if this is a common issue and I'd love some advice. Thanks.