Hi Guys For years I been using the inverting OPAMP circuit when amplifying a signal, by using two stages to get the signal in the right phase. But Now someone that works with me just designed a circuit with a non inverting OPAMP configuration, and apart form the fact the gain can not be lower than 2 I can not see any problems with using this configuration. in top of it all I only need one OPAMP not two. I read a few things about it and it seems that the non inverting configuration puts more strain on the OPAMP... Do any of you have any info on this and any other problems that could arise by using this configuration over the inverting one. best regards Luis -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics