I am having trouble getting a clear picture of what you are trying to do. When you gate a signal OFF is there another signal which should be gated ON at the same time? In other words, is this a MUX or something more like a sample and hold? What are the source and load impedances? When you gate the signal OFF does that mean you want to continue to pass the DC offset but not the AC component? On Wed, Feb 15, 2017 at 11:53 AM, Van Horn, David < david.vanhorn@backcountryaccess.com> wrote: > > I'm looking for a way, hopefully not too complicated, to gate signals on > and off without inducing more than maybe 100nV of disturbance. > The signals may be at ground, or may be riding on a volt or two. > "off" means more than 30dB reduction. > > Any ideas? > > > > > -- > David VanHorn > Lead Hardware Engineer > > Backcountry Access, Inc. > 2820 Wilderness Pl, Unit H > Boulder, CO 80301 USA > phone: 303-417-1345 x110 > email: david.vanhorn@backcountryaccess.com backcountryaccess.com> > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .