[sdiy] buffers

[johnspeth at yahoo.com]

Yes.  It's a simple and well known op amp configuration that doesn't require resistors (because there's no amplification).  It's a high impedance unity gain buffer.  I'll bet if you google for those terms and include "op amp" you'll get many useful hits.

My attempt to describe it in words: input to the + input.  Connect the output to the - input.  Find your buffered output at the op amp output pin.

JJS


----- Original Message ----
From: Dan Snazelle <subjectivity at hotmail.com>
To: synth-diy at dropmix.xs4all.nl
Sent: Tuesday, November 4, 2008 9:07:18 AM
Subject: [sdiy] buffers


I need to have a buffer coming out of and going into my synth for an fx loop.

is there a way to use a non-inverting configuration of an opamp as a BUFFER/FOllower? or should i just use 2 inverting followers?

thanks


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