Hi All,
I know that AD1862 R2R dac chip have a "unique" pin layout as it use current as an output, Iout is pin 11, in all the other AD186x current output dac chips the Iout is pin 13, therefore will not work on pcb that originally designed for AD1862 chip.
Does anyone knows any other DAC chip (not only from Analog devices) that can be used as a direct replacement for AD1862 chip with the same pin layout?
The reason for my question is that if there is no other direct replacement DAC chip for AD1862 how it can be faked?
Peace,
Guy
I know that AD1862 R2R dac chip have a "unique" pin layout as it use current as an output, Iout is pin 11, in all the other AD186x current output dac chips the Iout is pin 13, therefore will not work on pcb that originally designed for AD1862 chip.
Does anyone knows any other DAC chip (not only from Analog devices) that can be used as a direct replacement for AD1862 chip with the same pin layout?
The reason for my question is that if there is no other direct replacement DAC chip for AD1862 how it can be faked?
Peace,
Guy
Hi bguy
Your question is if there is any other DAC IC that is functional and pin compatible with the AD1862 IC, yes?
(fake has a different meaning: to deceive and present something as genuine)
George
Your question is if there is any other DAC IC that is functional and pin compatible with the AD1862 IC, yes?
(fake has a different meaning: to deceive and present something as genuine)
George
Yes' I would like to know if there is other DAC chip that is pin compatible with the AD1862.
I've mentioned "fake" because I see a lot of AD1862 chips on ebay, and I know that there are a lot of fake R2R dacs chips on ebay (like the PCM1704\PCM1702\PCM63).
I've mentioned "fake" because I see a lot of AD1862 chips on ebay, and I know that there are a lot of fake R2R dacs chips on ebay (like the PCM1704\PCM1702\PCM63).
Thanks.
so basically only it's version can be faked (N,N-J,N-K).
It's a little strange, as for an old R2R dac chip it can be found very easily compare to the pcm1704 and pcm63.
so basically only it's version can be faked (N,N-J,N-K).
It's a little strange, as for an old R2R dac chip it can be found very easily compare to the pcm1704 and pcm63.
It happened that I have 4 pcs AD1862 from Chinese seller. I will be building a AD1862 DAC soon. We will see.
I've found that there are only 2 versions to this chip, AD1862N, AD1862N-J...I discovered that there is another version, AD1862N-Z but couldn't find any info about it.
I can only find that this was possibly a special part for Denon. We had a relationship with Denon where we got an employee discount on their products. Not sure this part has any better performance specs. BTW fake parts except maybe for upgrading to the "J" are a stretch. I have never seen anyone actually fabricate fakes except for a few power management parts where the masks were stolen because they could be run on a generic CMOS process.
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