[sdiy] Discrete OTAs - (was - Best CA3280 projects?)

Ian Fritz ijfritz at comcast.net
Mon Jul 2 21:15:59 CEST 2012


At 05:49 AM 7/2/2012, Justin Owen wrote:
>Out of the people who've experimented with designing discrete OTAs - have 
>any of you implemented the 'linearizing diodes' that the LM13700(?) had?
>
>I'd be curious to see how you did this, whether you actually used diodes 
>or half a transistor (don't laugh - that's what I've read) and what 
>advantage it got you - if any.

I used diode-connected transistors from a well-matched pair of CA 3083 
devices.  Matching is crucial.

Ian




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