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hello
i have some little questions to ask to the more experienced users...
In lots of designs with adc's i see that anti aliasing filter is missing ... it's normal? For example , i want to sample a 500Hz signal ( i expect to do make a ecg maybe in the future ) , it's mandatory to put an anti aliasing filter or i can live without it ? ( i mean putting in 8 filters it's so boring ^^ , otherwise i can put a standalone adc and analog mux to share the filter ... taking care off course of the switching transitions ...
Or, instead of that could i do it all digital (dsp or messy loop) one inside my mcu ??
( i was thinking of doing a 60hz notch inside but can i use it too to perform the antialiasing AFTER sampling???)
Can the CMSIS libraries do it and will they work in uvision?
this part is a little bit confusing to me.
thanks for your help to understand better this obscure part ...