RP2040 external Analog Reference

[Sudo]

I would like to use an External analog reference for Xiao RP2040, but I’m not sure how to make it work since I dont see any ARef pin. Any help to add a LM4040 board to RP2040 Xiao will be great

[Citric]

I hope this schematic can help you.
XIAO RP2040 v1.22 SCH.pdf.zip (61.1 KB)