TL08x as comparator...

[Duane R Balvage]

Hello all...

I have a Question... Someone mentioned that my design using a TL082

as a comparator was "scary", I think mostly in rererence that it was 

capacitively coupled to the voltage it was comparing. Anyone have a 

better idea of how to do it?:


integrator cap pin (4)     |\
CEM 3394        | |        |+\
   >------------| |--------+  \
                | |        |   \
           +5              |    \___________ square out
            |              |    /
            \     +--------+   /
            /     |        |- /
            \<----+        | /
            /              |/
            \
            |
           ---
            -
The reason for the TL part was for HIGH input impedance - I didn't

want to load down the integrating cap. Should I have just used a

large resistor (~1M ohm) instead of the cap?

(sorry, been awhile since op-amps 101 in college....)

			Anyone...?

		TIA!!

				- Duane


   "That boy's got a mouth like a cannon ... Always shootin' it off..."
                                
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