Archive of the former Yahoo!Groups mailing list: MOTM

> > If you are careful to match the input resistors can't you get
> > good common mode rejection with active balancing?
>
> No, you can't.

Addition: yes you can, but not with that simple one-opamp
circuit. Three opamps is much better, or even better, discrete
symmetrical frontend and then an opamp, as in (now obsolete)
SSM2017.

JH.