Are the NI 446x Analog Input Channels Aggregated?

Updated Dec 19, 2017

Reported In

Hardware

  • PCI-4461
  • PXI-4461

Issue Details

For the NI 446x, the analog input specification states 204.8kS/Sec as max rate. Is this specification for each analog input channel or aggregated, split, between the analog input channels? 

Solution

In the NI 4461/4462 Specification document, the sample rate is specified for each AI channel, not aggregated. It has two simultaneously sampled AIs, which means there is a dedicated analog-to-digital converter on each channel. 

Additional Information

You can test this in NI MAX using Test Panels with a simulated NI PCI/PXI-4461 or NI PCI/PXI-4462. You will be able to acquire samples at 204.8 kS/s on each analog input channel.

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