Other Parts Discussed in Thread: INA228
I'm completely new to this field so please be gentle.
I'm designing/prototyping a board which needs to read current pulses. I need to identify current variations of at least 10ma with a sequential read rate of at least 300 microseconds each - or say 3000 reads per second. My intended range is from 0-3A, and if I haven't totally misunderstood how to do this I think a 27mOhm resistor is appropriate.
At the moment, I'm using a STM32F103C8 microcontroller if it matters - absolutely not locked in and I'll happily switch if there's sufficient reason to.
My questions: first, is the INA232 capable of the resolution and speed I want? If not - is there an alternative?
And...did I pick the right resistor value? I did 8.192mV / 3 = 27xxx, so rounded down to 27.