I designed a USB scope that runs about 10 mega samples/second.
The prototype ran ok but with a little noise in the signal at lowest voltage setting. It was passable so I let it go.
I had to buy in some more a2d's which were about £10 at RS.
So looked around elsewhere for some cheaper.
I eventually found some on Ali Express for about £1.50 each.
I guessed they were worth a try.
After a couple of weeks they arrived and I tried one and it is a better output than the full price ones !
People usually warn you off fakes but these ones seem to be better than the real thing.
The prototype ran ok but with a little noise in the signal at lowest voltage setting. It was passable so I let it go.
I had to buy in some more a2d's which were about £10 at RS.
So looked around elsewhere for some cheaper.
I eventually found some on Ali Express for about £1.50 each.
I guessed they were worth a try.
After a couple of weeks they arrived and I tried one and it is a better output than the full price ones !
People usually warn you off fakes but these ones seem to be better than the real thing.
I had the same kind of experience with common transistors: cheap generic devices from Chinese origin have better specs than true, original types.
This is only valid for common, relatively cheap types though: do not try this with an AD797 fac-simile or latFets: you are going to be bitterly disappointed
This is only valid for common, relatively cheap types though: do not try this with an AD797 fac-simile or latFets: you are going to be bitterly disappointed