[sdiy] new Texas ic log102 ? log ratio amp

[patchell]

    I just took a look at the data sheet.  Unfortuneatly, this device is
not really suitable for our use :-(, even if it was reasonably priced.
If the thing had more pins so that the parts were not committed to
strictly use as a log amp, it could be used to generate exponential
functions.  But, again, it is way too expensive.  You could probably do
almost as good using a CA3046.

Peter M Blackett wrote:

> Hi,
> just noticed the LOG102 ic in the latest edition of Texas instruments
> newsletter .[techinnovations11   ]
> I don't know if this would be a posibility to be used in place of the
> matched pair and tempco resistor in the vco design ?
> I guess its the drift with temperature that is important .
> regards Peter

--
 -Jim
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