Or even an SOT-23 comparator. Also widely available, tiny and inexpensive.

I use quite a few MCP6541 (push /pull output) and MCP6546 (open drain
output) parts in a variety of designs. Similar parts available from TI and
all the other usual analog suspects.

Matt Pobursky
Maximum Performance Systems


On Thu, 08 Sep 2011 11:45:33 -0600, Dwayne Reid wrote:
> How about using one of the little SOT-23 op-amps now readily available as
> a comparitor?  Set the threshold voltage to whatever you want (near 0V, I
> assume) and add as much hysteresis as needed.
>
> Tiny and inexpensive.
>
> dwayne
>
>


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