LMV331: Type numbering difference

Hello Peter,

LMV331IDBVR is a valid TI part number. This is the Texas Instruments ( LMV331 ) second source of the National LMV331M7/NOPB ( LMV331-N ).

LMV331DBVR is NOT valid since it is missing the "I", indicating industrial temp range.

As far as I can see, "LMV331DBVR" is not a valid part number for TI or any second source providers.

Someone forgot the "I"...

Hello,

I have a TI datasheet of January 2000 that shows this type without the "I". So I am little confused....

Hi Peter

My apologies...I was looking at the TL331 in the last post..The lit number should start with SLCS136 for LMV331.

Okay...You must have the SLCS136A datasheet (Jan 2000) and looking at the Available Options table.

All the devices are missing the "I". In the following "B" datasheet revision (April 2000), all the devices (LMV331, LMV393 & LM339) now have "I" in them, and the LMV331 is in "product preview". No changes to the specs.

The "I"-less devices were orderables at one time, but they are now obsolete as of 2002.

I will have to research to see what the difference was. At this time, the "I"-less devices are not orderable.

Hello,

you are right, the SLCS136A is exactly the datasheet I have. Problem is, that one of our customers has an older assembling part list with the device name without "I" and wanted us to assemble the board exactly according to that list. I understand we will have no more problem, if we could definitely say that both types with and without the "I" are the same or nearly the same components. Then we could explain this to our customer and assemble the actual part instead.

So we would be very interested to know what the differences between the parts are (or if there are none).

Thank you in advance

Peter

Hi Peter,

shouldn't you ask the customer which comparator to assemble?

Kai

Hi Peter,

As far as I can tell, the "non-I" devices are the same as the current "I" devices. The non-I devices were obsoleted with the replacement being the corresponding "I" device. And that was almost 20 years ago...

Around 2000, the TI LMV devices were renamed to conform to the Q, I & C temperature range suffixes. This also occurred with the sister LMV3xx op-amps, too.

In 2015, the upper end temperature range was extended from 85C to 125C. So technically the current "I" devices are 'better" than the old non-I devices.

So the LMV331IDBVR is the "replacement" for the LMV331DBVR. TI no longer manufactures the "I"-less version - and has not for almost 18 years...

So if they want that exact part number, they will have to find a sunset distributor and use 18 year old devices... :^)