Bruce Partridge wrote:
> I can't think of any.  I'm not sure what the advantage would be from
> running it from the battery.  It is a Microchip TC1014, and according
> to the data sheet, it draws 50uA regardless of load.  (At least thats
> how I read it.)

That's common of opamps.  The regulator probably wastes more current as the
regulated current increases.  It would also alleviate the need for the opamp
output to go to the positive rail.  On the other hand, if it's a Microchip
opamp it may not run at 6V.  Better check the data sheet.


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