Op amp question
This is prob a simple question. Thought I'd ask this before I fried an op
amp. For an op amp (LM324) that has a max supply capability of 32V:
I am supplying it with 5v (V+). Would I cause any damage if it received a
differential potential greater than 5V on its inputs? I'm not concerned
with clipping as I'm using it as a trigger. Just don't want to fry the IC.
Thanks,
Craig
amp. For an op amp (LM324) that has a max supply capability of 32V:
I am supplying it with 5v (V+). Would I cause any damage if it received a
differential potential greater than 5V on its inputs? I'm not concerned
with clipping as I'm using it as a trigger. Just don't want to fry the IC.
Thanks,
Craig
Comments
Semiconductor version of the LM324. It claims that the
input voltage can range up to +32v and is independent of
the supply voltage.
Just the same, a zener clipper on the input wouldn't
hurt.
--
"They that can give up essential liberty to obtain a
little temporary safety deserve neither liberty nor
safety." - Benjamin Franklin
> This is prob a simple question. Thought I'd ask this before I fried an op
> amp. For an op amp (LM324) that has a max supply capability of 32V:
>
> I am supplying it with 5v (V+). Would I cause any damage if it received a
> differential potential greater than 5V on its inputs? I'm not concerned
> with clipping as I'm using it as a trigger. Just don't want to fry the IC.
>
> Thanks,
> Craig
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
more than 0.3V. Also, max input common mode input is Vcc-0.3 volts, or 4.7
volts in your case. Max input of 32V will not kill the IC, but operation is
not guaranteed to be "normal". The suggestion of input clamping sounds
wise, except a diode cannot keep the input from going more negative than 0.3
volts, (even with most Schottky diodes).
Ray McArthur
> I am supplying it with 5v (V+). Would I cause any damage if it received a
> differential potential greater than 5V on its inputs? I'm not concerned
> with clipping as I'm using it as a trigger. Just don't want to fry the
IC.