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???
04/29/04 13:55
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#69490 - RE: how long must an \\
Responding to: ???'s previous message
Why not just replace the op-amp with a comparator?

well, same thing would result... although a comparator would be used, the device still has a "lag factor" that may not be suitable for edge triggering 8051.


Baloney,
look at the risetime for a modern comparator in a properly designed circuit.

Comparators are specifically designed to give sharp edges as a result of analog input.

Erik


List of 16 messages in thread
TopicAuthorDate
how long must an "interrupt edge" be?            01/01/70 00:00      
   RE: how long must an \            01/01/70 00:00      
      RE: how long must an \            01/01/70 00:00      
      RE: how long must an \            01/01/70 00:00      
      RE: how long must an \            01/01/70 00:00      
   RE: how long must an \            01/01/70 00:00      
      RE: how long must an \            01/01/70 00:00      
         RE: how long must an \            01/01/70 00:00      
            RE: how long must an \            01/01/70 00:00      
               RE: how long must an \\            01/01/70 00:00      
               RE: Lag??            01/01/70 00:00      
                  RE: Lag??            01/01/70 00:00      
   Analog vs. digital            01/01/70 00:00      
      RE: Analog vs. digital            01/01/70 00:00      
         RE: Analog vs. digital            01/01/70 00:00      
         RE: Analog vs. digital            01/01/70 00:00      

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