Table Of Contents

Merged Channels

Last Modified: December 3, 2020

Merging channels allows multiple channels of a single SMU to work in unison. When the channels are connected in parallel at the destination, merging channels allows you to use your instrument for applications that require higher current output than any one independent channel of the SMU could provide.

To merge channels with NI-DCPower, you designate a primary channel and combine it with compatible merge channels.

  • Primary Channel—The channel you access when programming merged channels in a session
  • Merge Channels—The channels specified by the Merged Channels property, which work in unison with the primary channel

NI-DCPower supports merge counts of ×2 and ×4, each of which supports one or more discrete merge configurations.

  • Merge Count—The total number of combined channels (the primary channel plus the merge channels)
  • Merge Configuration—The combination of channels included in the merge

The total current you can source from the SMU by merging channels is equal to the merge count times the normal per-channel maximum for the SMU. Refer to specifications or documentation for your instrument for information on maximum sourcing power and current ranges.


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