In my previous question I was thinking about how can I "reuse" this circuit (0-10V, 0-20mA and digital contact input), when I only have 3.3V regulated power available from my LoRa Node:
After searching a lot, and without doing some deep changes to the circuitry showed in above picture, I was thinking to use a step-up boost converter using the MCP1640, in order to get 5V output to power the op-amp (LM224D) and leave the rest of the circuit untouched.
This is the recommended design circuit from the datasheet:
Do you think that this solution will work without any issue? Might it be a good compromise or will it be a total failure?
Here you can see the circuit that reference the netflag VLIM: