If you can get your op-amp circuit to run at under about 20ma or so just
power it from a PIC pin!

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

----- Original Message -----
From: David VanHorn <dvanhorn@CEDAR.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, October 13, 2000 7:45 PM
Subject: Re: [EE]: Sound activated switch


> >
> >Is this a good solution for low power apps, like battery
> >powered where the PIC will sleep until some time, wake up
> >to check timers and input pins, then sleep again?
>
> That's a little tougher. You can get micropower op-amps, and scale the
> resistance values up so little current flows.
>
> It's the old limbo question, "How low do you need to go?"
>
> --
> http://www.piclist.com hint: To leave the PICList
> mailto:piclist-unsubscribe-request@mitvma.mit.edu
>
>
>
>

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu