lm301 replacement?

WeAreAs1 at aol.com WeAreAs1 at aol.com
Wed May 10 21:23:40 CEST 2000


In a message dated 5/10/00 10:54:06 AM, you wrote:

<<can anyone recommend a replacement for the lm301?  anyone know where i can 
get a data sheet for the pinouts too??>>

Unlike almost all opf the other currently available opamps, the LM301 is a 
uncompensated amp.  So, if you're trying to replace one in an existing 
circuit (or trying to clone a circuit that uses one), it's probably important 
to not try to substitute another opamp type.

I think that National is still making LM301's, and I usually buy them from 
Jameco.  Most electronic part stores carry Jameco's "Jim-Pak" line of parts, 
and I think the LM301 is in that series.  If you're having trouble finding 
one, you could also use one of the NTE substitute parts.  They have an 
uncompensated LM301 substitute called NTE975, which is the 8-pin DIP package, 
and the NTE1171, which substitutes for the metal can package.  The NTE parts 
will be a bit more expensive than the originals (and sometimes not quite up 
to the same quality level, unfortunately).

There may indeed be other uncompensated opamps still available out there, but 
I don't know what their part numbers are.  A lot of ARP circuits were 
designed around the LM301, and depend on its characteristics to operate 
correctly (and to sound right), so it's best to stick with what's been tried 
and true.

Michael Bacich



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