OPA602: Need to interpret the LOT and/or DATE CODE

Hi Peter,

TI is unable to provide lot/date code product marking information on the e2e forum. The problem is if we reveal our product codes on the open forum counterfeiters can use the information to mark their counterfeit product making them appear more legitimate and less easy to detect.

If you obtained your OPA602AU and TL062AC product directly from TI, or a TI authorized distributor, it should be valid product. The Date code (work week) is provided on the shipping label attached to the original TI shipping medium. If you can't identify the date code information on the shipping label, then an image of the shipping label should allow us to identify it for you.

Regards, Thomas

Precision Amplifiers Applications Engineering

Hi Thomas,

the story is much complicated than it seems. The first: On this issue, I work for Thermo Fisher Scientific. Since more than two months one of the suppliers (Scanfil) has serious technical problems with a series production of one of key boards.

I understand that this is not the right place to discuss this. ;o)

Please provide a contact person to me. I would like to provide more details.

The key information: While searching for the reason of the technical problems I found out that Op-Amps OPA602AU seem to show something like “pop corn” effects. This happens sometimes only once within 12 hours sometimes five, to ten times. This only occurs with the Op-Amps with the lot/date code 892GK or 892GS.

Ok... I think this should be enough information here... ;o)

Kind regards from Germany,

Peter