On 11/28/06, Julian <julian at 22host24.com> wrote: > > Can i offset +/- 4v to 0-+8v using an lm358 running off a single supply > rail, or would a dual supply be essential? The LM358 should run fine with a single 3V-32V supply or a +-1.5V to +-16V dual supply. (* jcl *) -- http://www.luciani.org