[sdiy] SSM2164 to use as ring modulator...

[Neil Johnson]

Hi,

Mattias Rickardsson wrote:
>>     http://www.idea2ic.com/LM13600/UsingOTAs2.pdf
>
> Wouldn't this connection mean that you keep the 2164 output at some
> other voltages than the virtual ground they are specified for?
>
> I've seen the output (mis?)used that way in some of the 2164 filter
> schematics out there, but only connected them to virtual earths
> myself. The datasheet says Output Compliance +/- 0.1 V. How does it
> behave outside that range?

No, you can't use the 2164 in exactly the same way as the LM13700
because it is different.  But as I said, with an op-amp or two you can
build a ring mod with only two 2164 gain cells.  You just need to
apply some grey cells to the problem.

Neil
--
http://www.njohnson.co.uk