Hi everyone, I am working on a portable datalogger. IT SHOULD BE "UNIVERSAL", in a way that Next week (I suppose) will start working on how to implement A/D4s low pass filtering. And that4s the question: Do you always use analog filtering (such us Butterworth or Sallen Key), or implement it digitally ? OR DO NOT IMPLEMENT IT AT ALL ????? Thank you very much, Gabriel Caffese.- _________________________________________ Gabriel ICQ#: 154107558 More ways to contact me: http://wwp.icq.com/154107558 _________________________________________ -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu