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DrSound · 8th May 2012

The primary used TL072 has 18nV/SQRT(Hz) noise density.
Offered TLE2072 has 17nV/SQRT(Hz) – practically the same.
For this reason it not makes sense to perform such replacement.
It makes sense to use this opamp only for new designs.
I personally recommend to use the LME49880, which has
only 7nV/SQRT(Hz) noise density.

8th May 2012	#8
DrSound Gear Head Joined: Jan 2010 Posts: 31	The primary used TL072 has 18nV/SQRT(Hz) noise density. Offered TLE2072 has 17nV/SQRT(Hz) – practically the same. For this reason it not makes sense to perform such replacement. It makes sense to use this opamp only for new designs. I personally recommend to use the LME49880, which has only 7nV/SQRT(Hz) noise density.