[sdiy] Modern LM311 replacement?

René Schmitz synth at schmitzbits.de
Fri Dec 12 21:25:27 CET 2014

Hi Nils,

look who is also hanging around here :-P

Am 12.12.2014 15:56, schrieb Nils Pipenbrinck:
> Hi folks,
> what is your take on 21th century comparators?
> I'm looking for a modern (faster) replacement for the good old LM311. It
> served me well in the past, but now I need something with half the
> propagation delay (shorter is better). I'm also fine with different
> output stages. No need for the open collector design.

If all you need is a modest speed improvement, you could try beefing up 
the signal with a fast opamp first and then go into a 311.

> I searched the web, and whatever I found was either completely over the
> top (performance and price-wise) or I was unable to find someone who
> actually sells the chip in single quantities.

And then these typically will only run on 5V or the like.


synth at schmitzbits.de

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