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Is there any reference for small part marking to part number?

Question asked by van.mat on Mar 5, 2012
Latest reply on Jan 16, 2018 by cr73

I found some parts, marked with the AD sign and some letters:

  J

   LA

and another case

  B

   JA

The case looks like SOIC-8, and I think, they must be amplifiers.

Unfortunally, I did not find any reference list, where I could find out the part number to get a datasheet.

Google did not find anything, and in the Turuta SMD Code book I did not find anything.

 

What are these chips? And where is a small part mark reference for Analog parts?

 

Thank You

Matthias

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