High - I'm planning on using a MAX4372H
My primary question is this: I plan on sampling from this ADC at probabaly about 1khz. When I take each sample I'd like the sample to be the average current since the last sample was taken - so I'd like it to be the average current over the last 1/(1khz) or the last 1ms. Implementation of this is where I get a bit confused. Would this be an application for a low pass filter? Or something else? Can anybody suggest a circuit that would work for this?
Secondary question: is there anything wrong with my plan? At that small of a resistance - do I need to worry about things like the resistance of the traces, the solder, or the pads? I plan on having the current sensing resistor directly between the two current sensing pins (RS- and RS+) - so trace length between the pins and the resistor will be maybe ~1-2mm or so.
Thanks for your help,
-M. Noone