I have a need to measure and log some DC voltages very accurately. I'm monitoring and logging a process that is very fussy. Somewhere recently I saw something in this forum about a 16 bit ADC that communicated through a I2C interface, but now I can't find it. I can't remember if it was on a shield or just a chip. If it's a chip I will make a shield using it. Does anyone here know what device I saw, or something similar?
Jim
Analog Devices makes a whole bunch of I2C 16-bit A/D converters: AD7148, AD7142, AD7143, AD7147, AD7147A.
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The Ruggeduino: compatible with Arduino UNO, 24V operation, all I/O's fused and protected
@RuggedCircuits,
Have you tried interfacing AD7142 with Arduino uno? I want a reference hardware design to do that. I got a SMD package and I trying to make a board for it. I cant even see AD7142 in components library of Analog Devices of Eagle CADsoft. Please let me know if you have some leads on this.
Thanks,
Leo..
Have you seen my set of directions on making your own symbol? I've posted them a few times.
Unfortunately I can't find them at the moment, I'd post them again.
Ah, here they are:
http://forum.arduino.cc/index.php?topic=290625.0
Reply #9
I find the hardest part can be interpreting the mechanical dimensions, especially on non-electrical things, like battery packs. Just make one want to strangle the mechanical engineer that comes up with those sometimes!
CrossRoads:
Ah, here they are:
Cadsoft Eagle Nightmare continues. - General Electronics - Arduino Forum
Reply #9
I find the hardest part can be interpreting the mechanical dimensions, especially on non-electrical things, like battery packs. Just make one want to strangle the mechanical engineer that comes up with those sometimes!
in the notes of the data sheet : "yesterday I could not spell engener, today I are one"
CrossRoads:
Ah, here they are:
Cadsoft Eagle Nightmare continues. - General Electronics - Arduino Forum
Reply #9
I find the hardest part can be interpreting the mechanical dimensions, especially on non-electrical things, like battery packs. Just make one want to strangle the mechanical engineer that comes up with those sometimes!
I typically find a similar, common chip from the same manufacturer, get the data sheets to compare pin-outs and pad sizes, then if the pads match, rename the pins, once in awhile I get lucky and the only need is to change the name.
That doesn't work so well for mostly mechanical things. Look at this battery holder for example - no center lines anywhere, had my calculator open the whole time I was creating the symbol, crunching #s to figure out where the next point was.
CrossRoads:
That doesn't work so well for mostly mechanical things. Look at this battery holder for example - no center lines anywhere, had my calculator open the whole time I was creating the symbol, crunching #s to figure out where the next point was.
http://www.memoryprotectiondevices.com/datasheets/BC9VPC-datasheet.pdf
I have taken those drawings and put them in CAD so I can alter the reference for home.