Maximum Current Achievable When Merging PXIe-4163 Channels

Updated Nov 5, 2025

Reported In

Hardware

  • PXIe-4163

Issue Details

I want to know the maximum current output possible when merging channels on the PXIe-4163 Source Measure Unit (SMU).

Solution

The PXIe-4163 supports merge counts of ×2, ×4, and ×8, allowing multiple configurations depending on your application needs. When merging channels:

 

  • You can merge up to 8 channels to achieve a maximum output of 400 mA.
  • Although the PXIe-4163 has 24 channels, only three sets of 8 channels can be merged to output 400 mA each.

 

Additional Information

Here are the valid merge configurations for PXIe-4163:

 

Possible Merge CountsPrimary ChannelValid Channels to MergeMax Current
x20, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22Primary + next channel100 mA
x40, 4, 8, 12, 16, 20Primary + next 3 channels200 mA
x80, 8, 16Primary + next 7 channels400 mA

 

Related Links

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement or active software subscription may be required, and support options vary by country.