03-28-2011 01:03 PM
My company has an ancient 14/16 bit A/D that's falling apart and we don't have an easy way to repair it. I've been searching for a replacement and thought I'd look into a PC based solution. I am looking for a 14 to 16 bit A/D, at least 2MS/s (preferred faster), multi-channel, and 10V input range. It appears that the PCI NI-6133 meets these requirements but I don't see any indication of how many LSBs the noise is. Our current A/D has a ~0.5 LSB noise floor (measured) and my application requires <1 LSB noise.
Will an NI card approach serve my needs?
Thanks,
Jason
03-29-2011 02:51 PM
Jason,
I believe you selected the best device to replace your current device. I looked at the specifications for the NI 6132/6133. On page 4, there is a chart entitled System Noise (LSBrms). This identifies the noise, which is below 1 for each voltage input range.
http://digital.ni.com/manuals.nsf/websearch/357F80807E3C11EF862571A90050120C
Choosing between the 6132 and 6133 depends on how many channels you are desiring. The NI 6132 has 4 channels and the NI 6133 has 8.
Jordan