Darryl, Your right I should have mentioned that I was trying to measure an AC current right off the bat my mistake.

So I've got a couple differnt methods and since I want to learn I'm looking at both of these and am leaning more towards the LTC1966.

Dave no I did not forget you and I have been taking many samples in my code but that does not seem to be working well for me but I do like your example of how to read this with the line in on the sound card and kind of simulate having an oscilliscope that is pretty cool and I am going to be doing that this evening.

So to the RMS to DC converter. I'm reading the datasheet for the LTC1966 on it's functionality it sounds like as you said run the output of the 712 through and it is going to give me the DC voltage proportionate to the amps that I am trying to read on the pic correct? I'm going to get one and try it out so I can see this for myself.

Thanks
David