[sdiy] Another LM13700?

Mike Bryant mbryant at futurehorizons.com
Wed Jun 14 06:54:14 CEST 2023


Volumes !    The Chinese IC manufacturers won't bother with anything less than millions/year.
________________________________
From: Todd Sines <sines_list at scale.la>
Sent: 14 June 2023 04:48
To: synth-diy at synth-diy.org <synth-diy at synth-diy.org>
Cc: Mike Bryant <mbryant at futurehorizons.com>
Subject: Re: [sdiy] Another LM13700?

Then what’s keeping someone from doing the Reticon SAD1024/4096? :)


Todd

On Jun 13, 2023, at 10:16 PM, Mike Bryant <mbryant at futurehorizons.com> wrote:

I've used that company's 5532 and it was fine - met all the specs of the original.  As Neil said they are probably just absolute copies of one version or another.  There's a company in Singapore which will take any chip and strip away the layers so as to produce an exact set of masks (and a schematic);

________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Mike Beauchamp <list at mikebeauchamp.com>
Sent: 13 June 2023 23:13
To: synth-diy at synth-diy.org <synth-diy at synth-diy.org>
Subject: [sdiy] Another LM13700?

Just came across this today:

https://www.lcsc.com/product-detail/Operational-Amplifier_HGSEMI-LM13700M-TR_C5160094.html

No clue what the deal is with them, and the price isn't much better than
ordering direct from TI. But could this be another actual manufacturer
of this chip? Might be nice for those like me that love and rely on this
part #.


Mike
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