Hi all,
I am going to purchase a PCI-6221 DAQ card. I read the specification and it turns out that the sampling rate is 250kS/s, which means it can produce or collect 250000 sample per second, correct? So does it mean the time resolution is 1/250000=4000ns? I am reading the datasheet and it shows that the timing resolution is 50ns. So my question is what does that 50ns mean? If I have an externel signal with frequency is higher than 250kHz, does it mean PCI-6221 is not be able to capture that signal correctly?
