[sdiy] Modern LM311 replacement?

rsdio at audiobanshee.com rsdio at audiobanshee.com
Fri Dec 12 17:52:35 CET 2014

On Dec 12, 2014, at 6:56 AM, Nils Pipenbrinck <n.pipenbrinck at hilbert-space.de> wrote:
> 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.
I've not worked with anything special.

> 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.
You can request samples from the manufacturer. That saved me with a certain MAXIM part where I could only find the chip selling in lots of 100. Maxim sent me 9 for my prototypes, and I don't think they even charged for them (or, if they did, they were less than $1 each, so I forgot). They usually ask how many units your design will use per year, but I always have to select "< 1000" from the popup.


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