PXIe 4330 ground connections

[ATEandy]

Can anyone tell me if the PXIe 4300 has separate grounds for each channel?  I need to connect several signals to it in my application without joining the grounds together.

Many thanks

Andy

[Eden_S]

Hi Andy,

Do you wish to know this for the 4300 or 4330? Your title and the post both say different hardware types 🙂

Thank you,

[ATEandy]

It is the 4300 I am interested in - sorry about the typo.

Thanks

Andy

[Eden_S]

Hi Andy,

You can see from the circuit board diagram on pg.6 of the spec sheet (found here) that each AI channel has its own COM port.

From the signal description table found in section 2-4 of the user manual (found here😞 "Analog Input Isolated Common Ground—These terminals are the reference point for differential analog input measurements."

You can therefore wire each AI port to a different ground. I hope this answers your question!

Best regards,

[ATEandy]

Yes that does.

Many thanks

Andy

[Eden_S]

You're welcome. I wish you all the best with your application!

Best regards,