NI PXI-4130 Programmable, High-Power Source Measure Unit (SMU)

The NI PXI-4130 is a programmable, high-power Source Measure Unit designed for integration into PXI systems. This isolated SMU channel delivers four-quadrant operation across ±20 V and ±6 V ranges with measurement resolution down to 1 nA, making it ideal for component characterization, battery testing, and LED testing. A utility channel provides complementary 0–6 V, 1 A output for auxiliary power needs. The module sources up to 40 W and sinks up to 10 W, with 4-wire remote sensing support to minimize lead-drop errors. Power flexibility comes from PXI backplane or external 11–15.5 V auxiliary supplies.

– Technical Specifications

SMU Channel (Channel 1)
• Voltage ranges: ±20 V, ±6 V
• Current ranges: 200 µA, 2 mA, 20 mA, 200 mA, 2 A
• Sourcing: 40 W (quadrants I and III)
• Sinking: 10 W (quadrants II and IV)
• Isolation: 60 VDC, CAT I
• Measurement resolution: 1 nA
• Voltage accuracy (±20 V): 0.034% + 1.8 mV; (±6 V): 0.034% + 1.5 mV
• 4-wire remote sensing with 120 µV/V lead-drop accuracy adjustment
• Sampling/update rate: 3 kS/s
• Temperature coefficient: 10% of accuracy per °C

Utility Channel (Channel 0)
• Voltage: 0–6 V
• Current: 1 A (6 W)
• Setpoint/measurement resolution: 120 µV / 20 µA

Power & Interfaces
• Internal supply: 300 mA or 2 W (SMU); full 1 A (utility)
• External supply: 2 A @ 20 V (SMU); 1 A @ 6 V (utility); 46 W total
• Auxiliary input: 11–15.5 V
• Software: NI-DCPower driver
• Languages: LabVIEW, C/C++, Python, MATLAB, C#, Visual Basic .NET

– Key Features

• Four-quadrant sourcing and sinking in single isolated channel
• 5% overranging capability when enabled
• Supports complex test scenarios with independent parameter sweeping
• Flexible power delivery from PXI or external supply

– Typical Applications

• Component characterization and curve tracing
• Battery and fuel cell testing
• LED and power device testing
• Multi-parameter sourcing and measurement

– Compatibility & Integration

Designed for PXI chassis integration with modular I/O and trigger synchronization across multi-instrument systems.