Jump to content
  • 0

Configurable differential DAQ system



I'm currently using the MCC USB-1608 data acquisition (DAQ) system along with LabVIEW in my application. Initially, I started with single-ended mode measurements, but in pursuit of better resolution and reduced noise, I now need to switch to differential mode. The challenge lies in the need for flexibility to select different differential pairs. For example, I require the ability to configure channel 5 and channel 9 to form a differential pair.

However, when I configure the DAQ to differential mode, it pairs channel 5 with 6 and channel 9 with 10 by default. I'm considering designing a 16x16 multiplexer board to address this issue. But before proceeding with that, I'm wondering if you have any off-the-shelf DAQ systems that offer this level of configurability.

Link to comment
Share on other sites

2 answers to this question

Recommended Posts

  • 0

Hello @wavemode.

The USB-1608G Series can be configured for 16 single-ended or 8 differential analog input channels, in InstaCal.  This configuration must be decided by the end-user before using the device in LabVIEW.  Please reference page 10 in the user's guide for the channel mode pinout.


The MCC USB-2416-4AO device supports 16 differential analog input channels.  Please review the device's specifications to determine if it is suitable for your application.




Edited by Fausto
word edit
Link to comment
Share on other sites

  • 0

Hi @FaustoThank you for your prompt reply. I knew how to configure the USB-1608G for 8 differential analog inputs using InstaCal.I've encountered another issue. When I configure ch0 as differential input, ch0 and ch8 set to ch0H and ch0L, and it is fixed.

However, in my application, I require the flexibility to change the differential pairs dynamically. For example, I may need to measure voltage between ch0 and ch1 as a differential input, and then a few seconds later, I might need to measure voltage between ch0 and ch2, and this pairing will continuously change. Therefore, I need a DAQ system that allows me to configure differential pairs using LabVIEW. do you have any other product that has this feature.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...