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AD1865NK genuine or not?

post #1 of 4
Thread Starter 

I'm gathering parts to build a DAC based on the AD1865. Digikey keeps being out of stock so I decided to pull the trigger on one from ebay.

Got one from here: http://cgi.ebay.com/AD1865N-K-AD1865-18bit-Audio-DAC-upgrade-Audionote-IC-d-/170505604828?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item27b2ed0edc

Mine arrived yesterday and looks exactly like that. What I'm worried is whether it's genuine or fake. Most of the pics I found online are quite different from mine.

 

IMG_6232.JPG

 

The only pic I could find so far that looks the same like mine is the AD1865N:

 

AD1865N.jpg

 

So I'm wondering if anyone has experienced with this chip? Is there any chance of variation during the production?

post #2 of 4

The ones pictured here look the same as yours.

It is possible that the printing on the top changes

as they might the fab where it is made.

post #3 of 4
Thread Starter 

Ah, thanks. Looks like mine was produced quite a long time ago. Actually I don't think it's fake because the printing is really nice and clear.

post #4 of 4

It may not be a true K version,  but I its definately an AD1865,  the difference is probably inaudible unless you are building a $1000 output stage.  Unless you buy from an authorized distributor you're odds of getting K rated DAC chips are low (they have stamps in china.)

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