hi so today arrived my 10pcs
lm7171 for 2 dollars i think, from aliexpress, i mean i took them for having a little bit of fun and i did know that
almost every specialized part is fake
there.
so i mounted it on the breadboard adn tried it out ....it killed my ad9833 by feeding 10volts into it .........
i don't know what happend so i smashed it and thought that it was kikley a fake part, so i wanted to see if there was a die or only a copper piece ...and there it was...
let's see what it look like, picked up my phone mounted a dvd collimating lens on the camera and there it was the die, really pretty, but then i saw some printings
LM7171 NCS 1994 is this a real part? goin on the upper part you can see a national logo and the chips were advertised as national instruments again.so there is someone that could try to explain this , do we have any silicon expert ?
i think this is really intresting and i would love to hear your thoughs on it
thanks in advance for everyone that will answer . i will link a drive folder because the photos are to big to be attached in the forum ....see ya!
https://drive.google.com/drive/folders/1IxKpqGK49XweEwLs_SNwks45SoQ7SblH?usp=sharing