Re: Parallel op amps current
- From: "whit3rd" <whit3rd@xxxxxxxxx>
- Date: 11 Apr 2007 12:27:14 -0700
On Apr 9, 1:59 pm, Richard Crane <richardcr...@xxxxxxxxxxx> wrote:
I am using an LM358 as an audio amp in a battery powered application.
it's a dual...what is the possibility of feeding both amps
with the same signal and paralleling the output for more current?
More common is connecting as a 'bridge amplifier' so that one drives
the (+) side of a load and the other the (-) side of a load.
That is effectively connecting the outputs in series...
If you really think you may be near the upper current limit,
consider the heating of the op amp; low frequency errors
can result. I'd never want to draw more than 2 mA from an
op amp (transistors are cheap, use a couple instead). You can
get a lot more current-output headroom than a piddly
factor of two.
.
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- Parallel op amps current
- From: Richard Crane
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