Good day, everyone!
I'm a student and quite a newbie to the world of NI stuff, so any and all help would be gladly appreciated. I'm looking to find the most affordable USB DAQ option for high frequency digital input acquisition (upper limit of 200 kHz, maybe). I currently have a NI DAQ USB 6009, which is obviously very limited for higher spec applications.
I have experiments that require several modes of digital input to be collected. However, the lowest frequency mode (~1 kHz) already surpasses the USB 6009's software timing of 150 Hz. To overcome this, I collected data via the analog terminals of the DAQ to take advantage of the 48 kS/s analog input rate, and then just did some processing to make use of it as digital again. That worked!
The next modes, however, have even higher frequencies (e.g. 100-200 kHz digital input), and so now I really do need better DAQ options. Funding is limited, but I do understand it won't be cheap. That said, I'm looking for the option that just passes what I need. What does anybody recommend? I've done what I can going through various spec sheets, but there always seems to be some vagueness about what is strictly software-timed, has counters but is still strictly software-timed, and what is actually capable of hardware-timing.
Please and thank you!
