[sdiy] THE LM13600/LM13700 STORY

[JH.]

>> >http://www.idea2ic.com/LM13700.html
>>
>> No!  Hadn't seen that.  Thanks for posting.
>>
>> Sorta a sad story, though.  If they had spent another five minutes on it,
>> maybe it could have been as good as the CA3280.
>
>Indeed, it almost sounded in his describtion that they
>copied the ca3080 more or less!

Which isn't a bad thing - I always used it for a 3080 replacement.

The claim of having designed this in - what? - 5 minutes may seem a little 
exaggerated, _especially_ when you consider that clever implementation of 
the linearisation diodes that is considerable different from a 3280 in that 
it uses resistors instead of current sources, and still works pretty well.
It may explain the more than sloppy description in the data sheet, though, 
where all the explanation _is_ made with reference to current sources!

JH.