I have assburger's syndrome and I have spent almost whole saturday on fixing layout.
Things I have done
- Increased pads on opamps
- wiring cleanup
- compare to previous posts
- changed 0603->0805 footprint on some components
- 5v -> 3.3v divider
- feedback resistors (allows more options)
- Moved P7 feedback position where it is accessible from both sides
- If someone like to use wired resistor as feedback resistor. Put one end on P7 and other end on input
- Proper guard ringing resistors is hard or impossible to do with multiple resistors
- at there is GND shield (GND is 2.5v)
I checked layout with eurocircuits pcb checker...all seems to be ok.
Expect some silkscreen problems. (text positioned bad.... and jumper silk is over pad)
Size of board is 49mm x 22.9mm
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| Spot silkscreen error.. no the jumper silk... the P7.. |
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| Both capacitors silkscree text...forgotted..on kicad. |
Ok... This is enough layout shit for this weekend.


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