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<P><FONT SIZE=2>Hi list-</FONT>
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<P><FONT SIZE=2>I'm working on a quantizer project that uses a comparator. I started the design using an LM311 hoping to exploit the OC output for driving 5V logic. I quickly found out that a 0-5V output swing results in an asymmetrical hysteresis. Now it's a plain old +/-15V comparator with positive feedback for hysteresis. I might as well have used an opamp as a comparator to save the trouble of a pull up at the output.</FONT></P>
<P><FONT SIZE=2>My questions are: Are suitably fast opamps just as effective as purpose built comparators in comparator applications? How do I determine if an opamp is fast enough for my application?</FONT></P>
<P><FONT SIZE=2>John Speth</FONT>
<BR><FONT SIZE=2><A HREF="mailto:johns@molectron.com">mailto:johns@molectron.com</A> </FONT>
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