[sdiy] OTA shootout, cont'd.

[JH.]

Interesting!

Thanks for your sharing your research, Ian!

JH.



----- Original Message ----- 
From: "Ian Fritz" <ijfritz at earthlink.net>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, June 04, 2005 10:33 PM
Subject: [sdiy] OTA shootout, cont'd.


> Hi listers --
>
> I got ahold of some LM13700 and NE5517 samples and took a quick look at
> them from the viewpoint of the Iabc linearity.   Happily, all the devices
> had acceptable performance, with non-linearities under 2%.  Some of the
> 13700's even came in at ~0.2%.
>
> So why the discrepancy with the results on the 13600's I reported
> before?  I believe the difference may simply be the grade of the
> device.  The present 13700 and 5517 devices are primo "AN" parts, whereas
I
> only have 13600's in the vanilla "N" grade.
>
> Bottom line?  The current devices can be pretty good if you pay up for the
> high grade "A" variety and if you are willing to select for critical
> parameters such as feedthrough and linearity.
>
>    Ian
>
>