> work with AC or DC, but is pretty limited in dynamic > range with such a low resolution (7-bit effectively, > since one bit is wasted doing the rectification in > software). So, measurements on lower voltage or > high crest factor waveforms will likely be inaccurate. Sounds like what I was observing...I was fine with full input, but the lower I made the amplitude, the more inaccurate it was. So why are the lower voltages not as accurately read?