NI PXIe-4140 4-Channel Source Measure Unit (SMU)

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  • 4 SMU channels per single-slot, 3U PXI Express module
  • ±10 V at ±100 mA output with 4-quadrant operation
  • 100 pA current measurement sensitivity
  • Continuous sampling of up to 600 kS/s
  • Onboard hardware sequencing engine for triggering and synchronization
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The NI PXIe-4140 is a high-channel-count, high-speed source measure unit (SMU) with four identical SMU channels per PXI Express slot. Each SMU offers 4-quadrant operation to source or sink ±10 V at ±100 mA, and each channel has integrated remote (4-wire) sensing for accurate measurements. To help reduce measurement times and capture transient device characteristics, each SMU can sample up to 600,000 S/s. Additionally, source measure rates of up to 15,000 S/s allow quick I-V characterization of devices under test.

For high-pin-count applications, you can load 17 NI PXIe-4140 modules in a single 19 in., 4U PXI chassis to provide a total of 68 SMU channels. A high-speed sequencing engine allows all of these SMUs to be synchronized with each other or with other instruments such as switches or high-speed digital test modules.

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Specifications Documents

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Specifications Summary


To use the NI PXIe-4140 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.

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PXI System

NI PXIe-4140




NI PXIe-4140 - 781742-01 Qty $ 5,249 each
Optional Accessories
Connector Block
Qty $ 119 each
Qty $ 132 each
Qty $ 149 each

Subtotal: $ 5,249

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