Ad1865nk Are These Fakes

[MarkLai]

I got these 6pcs from a dealer. (see photo)
Only the top two pcs look "better"

Anybody can give me advice if these are fakes or else?

Thanks

 

[scarebus]

They look different than mine. On mine, NK is inside a white rectangle in black letters, right after AD1865.

 

[dsavitsk]

These came direct from Analog a few years ago.

 

[bambadoo]

Yes, they look fake. Mine n-k's looks like the last picture.

Both N, N-J and N-K that I have.

 

[jitter]

The stamp on the top often says very little about whether an IC is genuine or not. I've seen fakes that had better looking stamps than the real thing!

For many years now I'm familiar with one specific type of Analog Devices DAC (not one you could find in a CD-player, though) and the stamp seems to vary a lot between batches. So far they have all been OK.

The Nakamichi CD-4 I bought in 1994 has the AD1865N. It doesn't look dissimilar to the ones in the original post.

An externally hosted image should be here but it was not working when we last tested it.

 

[robot]

I must admitt that I never see those like MarkLai s ad s

 

[jitter]

Here's another similar looking "stamp" (looks more like it has been lasered), this time it's the AD1864N in the older version of the Nakamichi CD-4.

An externally hosted image should be here but it was not working when we last tested it.