Electronics > Projects, Designs, and Technical Stuff
OSHW - 24bit ADC measurement system for voltage references
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branadic:
Almost every CAD for printed circuit boards is able to import Eagle Files.

What can you do with the schematics in PDF format? Almost nothing, just viewing it. Please don't repeat this discussion we already had before. If you don't have Eagle or similar CAD software with import function it's not my problem.
rs20:
Sorry, but think: phone, tablet, my locked down work computer, internet cafe, borrowed devices. Every one of my devices except my home PC, the only one which I have complete dominion over. All places which have no CAD software, and all support PDFs near-natively. And viewing a schematic is all that 90% of people well ever want to do. You're free to keep your design behind a proprietary wall, just don't pretend that it's sensible or in the spirit of a forum.

To be clear, if you had just said "no", I'd have not said anything. But you said "no, it's easy for you to use what I've provided". And I have to point out that this is massively, massively untrue for many people.
branadic:

--- Quote ---And viewing a schematic is all that 90% of people well ever want to do.
--- End quote ---

And I'm not adressing exactly those 90% of people :P

Some design parameters of the pcb to be ordered:

- size: 83 x 50 mm²
- thickness: 1.55mm
- smallest width: 0.2mm (due to guard at reference noise reduction pin)
- smallest via: 0.4mm
- finish: Ni/Au
- no silk screen
- stop mask: green on both sides
timb:
As an FYI, I would be in the target audience for this device, however I browse the forum (and do research, etc.) almost exclusively on my tablet. Further, I don't use Eagle for design work. If you can't be bothered to provide a PDF, or at the *very least* a PNG of the schematic, then I'm not going to bother with your device.

PDF is the de facto standard for distributing documents on the Internet. If I have to install Eagle on my main computer, just to view your schematic, then I'm not going to even consider your device. Period. What it tells me is you're either lazy or don't have any attention for detail. All you have to do is download Ghostscript... (Or one of the other numerous PDF printers freely available, assuming you're on Windows; if you're on OS X you can natively print to a PDF, so there's no excuse there.)

Sorry for being blunt, but that's just the way things are. (This would be like TI distributing datasheets exclusively in Word or PowerPoint formats. Can you imagine?)
branadic:
The former version with LT1236LS8 has already been shown. Is it really that complicate for you to imagine that LT1236LS8 was replaced by LT1027LS8 and therefore minor changes on the layout had to be performed? The complete rest is identical to the former version.
If your answer is yes, than you really don't need the pcb, trust me and you are one of the 90% of people out there that don't need a 24bit ADC measurement system for voltage references either.
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