Regarding 2-layer PCB Design for ATSAML21

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saoni
Posts: 1
Joined: Fri Oct 12, 2018 4:48 am

Regarding 2-layer PCB Design for ATSAML21

Post by saoni » Tue Oct 16, 2018 4:52 am

Hi Folks,

I am intending to build a flex 2-layer PCB including ATSAML21(WLCSP) as the microcontroller. I chose this microcontroller due to its embedded opamp functionality that I want to take advantage of.
The idea of the project is to build a small size power efficient flexible PCB for quick measurements.

Question: In order to configure the opamp as an instrumentation amplifier or a transimpedance amplifier, I am confused with the schematic design. I would really appreciate some feedback on the schematic I have attached for the same purpose.
Image

Thanks in advance,

Kind Regards,
Saoni

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