Hello,

I need some real-world diode operation info.  I am simulating a circuit =
that has a comparator whose output is connected to a diode.  After the =
diode, is a zener diode connect to ground and I am interested in the =
voltage across the zener diode.  Now, when the compator is at the =
negative rail (-10V in this case) I am a little suprised to find that =
the voltage across the zener diode is -12mV.  Does a diode 'leak' some =
negative voltage?  Also, if I am going to connect the voltage across the =
zener diode to a PIC will the -12mV be considered a logic zero or will I =
damage my PIC?

Regards,
Donovan Parks=20

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