Re: op amp specs question

On Apr 23, 12:36 pm, ggher...@xxxxxxxxx wrote:
On Apr 23, 9:41 am, panfilero <panfil...@xxxxxxxxx> wrote:

Hello,

I need an op amp that can handle a 800mA current surge at it's output
for a few mS.... it will be operating as a unity gain buffer, with
negative feedback... it there a spec on the datasheets that tell you
how much of an inrush current an op amp can handle at the output?  I
see that most the opamps can supply around 60mA but I can't tell about
what kind of surge they can handle....

Reason for the surge is a capacitive load

Thanks!

Sounds like you need a high current opamp.  I like the OPA544 for
+/-15V and the OPA569 for 5V.  If the output is single ended you could
always buffer the low current opamp output with a transistor.

George Herold

Thanks George, so I'm worried about current surges in and out of my
opamp output... does this mean I could handle this with a totem pole
transistor set up at the output of my opamp?
.

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