Hi!

I was studying the datasheet of an Op-Amp manufactured by Microchip, MCP6V01. On page 29 of the same, there are two circuits labeled as Figure 4-16 and Figure 4-17, you may refer to the attachments for the circuits. Can anyone please explain to me the purpose of R1 and R2, labeled in Figure 4-17, and their effect on the system? Referring to Figure 4-16, R2 is still there, but R1 is not.

I am not able to figure out what purpose they serve, and how the system would be affected when they are removed, either as well as both.

Thank you.

 

I have not seen such implementation anywhere before, neither studied about anything similar anywhere. So, facing very difficult in understanding its working. It would be very appreciable if anyone could even give a slight hint or some reference.