Skip to content
XGY Tek

Source Measure Units

XMU-5421 Four-Channel High-Precision Source Measure Unit

Four-quadrant PXIe source/measure with 200 µV voltage resolution.

Four channels within a ±24 V and ±150 mA envelope, with current resolution down to 100 pA on the 10 µA range.

Get a Quote
XMU-5421 Four-Channel High-Precision Source Measure Unit
Voltage range
±24 V
Current range
10 µA / 100 µA / 1 mA / 10 mA / 150 mA
Current sensitivity
Down to 100 pA
Sampling
600 kSa/s

Overview

XMU-5421 provides four source-and-measure channels with four-quadrant operation and 600 kSa/s sampling. Its ±24 V voltage range has 200 µV resolution; the 10 µA current range provides 100 pA programming and measurement resolution. Five current ranges extend to 150 mA for automated device characterization.

Additional product details

The XMU-5421 provides four source-and-measure channels with four-quadrant operation in one 3U, 4 HP PXIe module. The XMU-5421 ±24 V voltage range combines with 200 µV resolution for automated device characterization, and its 10 µA current range provides 100 pA programming and measurement resolution. The XMU-5421 600 kSa/s sampling rate supports automated characterization and transient-oriented test workflows, and Windows and Linux support with a VISA-based DLL integrates the module into modular test systems.

XMU-5421 application areas also cover measurement support for power-electronic devices and power-supply design, multi-channel electrical characterization for semiconductor research workflows, and source and measurement functions for materials and biochemical research. The XMU-5421 shipped as XMU5201B before the 19 August 2026 renumbering, with no change to the hardware.

Key Capabilities & Applications

Four-quadrant characterization

Four channels support source/measure and electronic-load workflows within a ±24 V and ±150 mA envelope. No separate higher pulsed-current limit is listed.

Resolution with explicit accuracy

Voltage resolution is 200 µV. Voltage accuracy is ±(0.1% + 10 mV) at 23 °C ±5 °C; the 10 µA current range resolves 100 pA with ±(0.1% + 4 nA) accuracy at the same temperature.

PXIe test-system integration

The 3U, 4 HP PXIe module specifies 600 kSa/s sampling and supports Windows and Linux through a VISA-based DLL.

Common applications

  • Semiconductor test
  • LED and LD test
  • Aerospace electronics
  • Power electronics
  • Semiconductor research
  • Materials and biochemical research
Applications and test requirements

Semiconductor test

Precision source and measurement functions for semiconductor devices and electronic components.

LED and LD test

Electrical test of LEDs, laser diodes, and other optoelectronic devices.

Aerospace electronics

Power electronics

Semiconductor research

Materials and biochemical research

Technical Specifications

ParameterSpecification
Channels4
OperationFour-quadrant source/measure
Voltage range±24 V
Current range10 µA / 100 µA / 1 mA / 10 mA / 150 mA
Voltage resolution200 µV
Current sensitivityDown to 100 pA
Sampling600 kSa/s
Peak/pulse currentNo separate pulsed-current limit is listed; ±150 mA is the stated maximum current range
View all 12 specifications
ParameterSpecification
Operating temperature0 to +55 °C
Storage temperature-20 to +70 °C
Operating systemsWindows and Linux
Driver interfaceVISA-based DLL
Detailed performance and interface tables (3)
Voltage programming and measurement
Voltage rangeResolutionTypical noise (0.1 Hz to 10 Hz)Accuracy at 23 °C ± 5 °C
±24 V200 µV200 µV peak-to-peak±(0.1% + 10 mV)
Current programming and measurement
Current rangeResolutionTypical noise (peak-to-peak, 0.1 Hz to 10 Hz)Accuracy at 23 °C ± 5 °C
10 µA100 pA100 pA±(0.1% + 4 nA)
100 µA1 nA1 nA±(0.1% + 40 nA)
1 mA10 nA10 nA±(0.1% + 0.4 µA)
10 mA100 nA100 nA±(0.1% + 4 µA)
150 mA1.5 µA1.5 µA±(0.1% + 60 µA)
PXIe slot power requirements
Slot supplyCurrent requirement
+3.3 V rail2 A
+5 V rail0 A
+12 V rail2.5 A
-12 V rail0 A
Performance notes

XMU-5421 voltage accuracy is ±(0.1% + 10 mV) at 23 °C ± 5 °C. At small set points the 10 mV offset dominates the percentage term outright. So the 200 µV step buys resolution, not accuracy, and should be read that way.

Read the current table by range before you order. Typical noise and programming resolution carry the same figure on every range. One unaveraged reading therefore lands on the quantisation floor rather than under it. The 150 mA range resolves 1.5 µA, the practical limit when a DUT draws near full scale. On arrival, exercise the 10 µA range over the 0.1 Hz to 10 Hz band the noise column assumes.

Specifications are subject to change without notice.

Models, Configuration & Compatibility

XMU-5421

Control interfaces and software

The module uses a PXIe bus and supports Windows and Linux through a VISA-based DLL for host integration and secondary software development.

PXIe · VISA DLL · Windows · Linux

Order codes and configuration are confirmed in the quotation.

Technical Resources

Download Datasheet

PDF technical specifications

Get a Quote

Pre-filled product inquiry

Selection guidance

Format: 3U PXIe, 4 HP

Coverage: 4 channels; ±24 V voltage range; ±150 mA maximum current range; 600 kSa/s sampling; current resolution down to 100 pA

Best for: Four-channel automated device characterization where 100 pA current resolution is sufficient.

The XMU-5421 is the standard-grade model to pick when 200 µV voltage resolution and current resolution down to 100 pA are enough. Forward-voltage sweeps on packaged diodes and LED or laser-diode binning sit comfortably inside this grade. So do bias-point screening and four-quadrant electronic-load work on the same fixture. Move up to the XMU-5422 only when the measurement itself lives below these numbers.

Compare products in the Source Measure Units category

Send the operating envelope, configuration and acceptance evidence you need; the quotation confirms model, options and delivery documentation.