Re: opamp better next to current sense resistor or near to microcontroller?
Noted.
(On precision: ultimately the role of this measurement is to provide a programmable fuse, but first will it to monitor circuit performance in real time and learn how to get good performance out of the parts.)
On the LPFs for the input to the CS30, 1nF & 100R gives 1.6MHz cutoff ( f = 1/ (2*pi*R*C) )
For current readings, wouldn't it be appropriate to make the cutoff frequency much lower? Some multiple of the number of readings taken per second?
For the Sample and Hold ringing at the ADC pin, should I be able to measure this with a scope?