Thomas Henry Tunable Noise Source Question

[René Schmitz]

At 04:48 21.11.00, Scott Gravenhorst wrote:
>Thanks René,
>
>This did cross my mind, but I keep thinking about all
>that messy tempco stuff.  I even looked up a schemo for
>a precision log converter... 3 op amps and some matched
>trannies.  It's looking like the simplest way so far
>is still the OTA, since it allows me to completely
>remove all of the expo stuff.

But keep in mind that in this case the expos tempco would be cancelled by
the logs tempco, hence when you'd use the same transistor array for both
functions, you wouldn't have to worry about tempco compensation. 

Bye,
 René
-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159