[sdiy] Making an 8038 not suck

[Tim Parkhurst]

On 11/24/06, Aaron Lanterman <lanterma at ece.gatech.edu> wrote:
>
> Hi there,
>
> One of my students is interested in playing around with the ICL8038. I'd
> be interested in doing something useful since there is a ton of them
> sitting around in a random drawer in one of the labs that hasn't been
> touched in ages, probably.
>
Snip!
>
> 3) Any other ideas for decreasing the suck in a 8038?
>
> - Aaron
>
> -----------------------------------------------------------------------------
>
> Dr. Aaron Lanterman, Asst. Prof.
> and Demetrius T. Paris Junior Prof.    Voice:  404-385-2548
> College of Electrical and Comp. Eng.   Fax:    404-894-8363
> Georgia Institute of Technology        E-mail: lanterma at ece.gatech.edu
> Mail Code 0250                         Web:    users.ece.gatech.edu/~lanterma
> Atlanta, GA 30332                      Office: Centergy 5212
>
>

Hi Aaron,

Thomas indeed has a very nice circuit using the 8038. While the
response is linear, he gets all three waves (Tri, Sine, Square) at
+/-5V from 20 to 20KHz. This definitely reduces the suck on the 8038
(especially if you already have some of the chips sitting around
unloved). This schematic will eventually be one of the "Freebies" at
the Magic Smoke site, but we've got so many other things going on that
I'll happily send you the schematics and text if you'd like to use it.
Standard Fair Use / not for profit rules apply to this project. Also,
please credit Thomas Henry, and make sure his name stays on the
schematic (credit where credit is due).


Tim (response not quite so linear) Servo
-- 
"Imagination is more important than knowledge." - Albert Einstein