NI Daq 6008 and Labview

[anouardz]

hello;

For the NI 6008 card sampling frequency equal to 10 kS / s and it has 8 analog inputs, but if I will use the 8 analog inputs simultaneously, what is the value of the new échantionnage frequency for each input analog obtained during an acquisition in labview?

[crossrulz]

From what I can gather from the data sheet, each channel will be sampled at the 10kS/s.

[anouardz]

Thank you for the answer, but according to the datasheet, the 8 analog inputs have a single ADC and a multiplexer connected before to the ADC allows the passage of all analog signals, so I don't know if 10 KS / s is achieved in all inputs when used simultaneously !!

[crossrulz]

The data sheet also says the maximum sample rate for multiple channels is 10kS/s aggegate.  I take this to mean that the entire channel sweep is done at 10kHz.

You could always try it and see what happens.  Read all 8 channels as a waveform with the sample rate set to 10KHz and see what the dt is in the waveform.

[Dennis_Knutson]

The maximum sample rate per channel is the aggregate rate divided by the number of channels.

[anouardz]

Thank you for your answer, but  the 10 KS / s given in the datasheet of the card NI 6008, is it the maximum sample rate per channel or the aggregate rate ?

[Dennis_Knutson]

The manual clearly states what the aggregate sample rate as already mentioned. It is 10 KS/s just to remind you.