I was reading on the internet about reading the remaining voltage level of a battery operated device using an ADC. This circuit is designed so that the ADC is only used when it is needed to be used, rather than it constantly draining the battery.
However, I do not understand what R3 and C1 are used for. I'm guessing it's some kind of MOSFET driver, but I am not sure.
Could someone help me to understand what they are for? Thanks