[sdiy] Buffered question

Mattias Rickardsson mr at analogue.org
Tue Dec 29 16:35:40 CET 2020

Hej Kristian! :-)

Your voltage follower is caller an "op-amp buffer" since it doesn't do
anything else than buffer the signal.

Amplifiers, mixers, comparators, and other op-amp applications also buffer
the signal, but that's not mentioned since their primary function is to
amplify, mix, compare, etc.

I hope I understood your question enough. God fortsättning och gott nytt år!


Den tis 29 dec. 2020 15:42Kristian Blåsol <kristian.borgstedt at gmail.com>

> Hello,
> A question about opamp buffers or voltage followers. So one of those
> circuits makes sure that whatever you plug in to the output of the buffer
> wont affect whatever you have on the input of the buffer... right?
> But there are so many different circuits you can make with an opamp, is
> there any of those that in itself IS a buffer, or do ALL other opamp
> circuits need buffering after it for the output to not affect the input?
> For example: a comparator, isnt that already buffered in itself? Since the
> output is either ground or +v?
> And how about a mixer/summing amplifier, op-amp as an amplifier, high and
> low pass filters.
> Im thinking so I dont put a buffer on an already buffered signal... :)
> Thanks in advance,
> /Kristian
> --
> ---
> Kristian Blåsol
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> http://synth-diy.org/mailman/listinfo/synth-diy
> Selling or trading? Use marketplace at synth-diy.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20201229/0e17652e/attachment.htm>

More information about the Synth-diy mailing list