alan smith wrote:
> for a standard inverting opamp circuit, where Rin and Rf are the same
> for a unity gain buffer,

No, that results in a gain of -1.  Unity gain means what it says, which is =
a
gain of "unity", or 1.

> I've found that I need to reduce the gain
> some so I'm putting in a smaller resistor value for Rin till I get
> the results, but I wonder if it makes a difference i

Your paragraph got cut off probably because sent it as one long line.
However, you can make inverting gains with a magnitude less than 1 by makin=
g
Rin > Rf.  Gain =3D -Rf / Rin.

Of course if you're looking for a gain magnitude less than 1 (attenuation),
then you should think about how the problem could be solved with a positive
gain and therefore just two resistors might do it.


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