[sdiy] 301 and 741, and the difference?

[patchell]

    The main difference is that the LM301 has external compensation.  If
you put a 30 pF cap accross pins 1 and 8, the LM301 will have basically
the same AC performance as the 741.  I believe that the LM301 does have
better DC performance than the 741, but, I can't be sure.  It has been a
long time since I used either device.

    The LM301 also allows you to use much more exotic frequency
compensation techniques.  You can use feed forward compensation and
actually get about 10V/us slew rate out of the thing with about 5MHz
unity gain cross over, or was that 10MHz.....although, I have generally
found that using such techniques causes just as many new problems as it
cures.

Ken MacBeth wrote:

> Here's one for you all I've been meaning to ask about:
> what's the diff. between the 301 and the 741 type op
> amp. In some circuits if I replace the 301a with a
> 741/081 type device the results are usually crap.
> Circuits I've done this with are Arp analogue noise
> and The Oberheim SEM filter. Just curious, others may
> find this useful too...
> Thanks in advance to you all...Ken.
>
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--
 -Jim
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