Description
Product Overview
The NI PXIe-4145 is a high-density, four-channel source measure unit (SMU) designed for high-precision automated test and measurement applications. Occupying a single PXI Express slot, the PXIe-4145 provides the unique ability to source or sink voltage and current while simultaneously measuring both, effectively acting as a high-precision power supply and a digital multimeter (DMM) in a integrated module. This module is specifically engineered to address the challenges of high-pin-count testing, such as semiconductor characterization and mobile device component validation, where space and channel density are critical. With its fast sampling rates and high-speed sequencing, the PXIe-4145 significantly reduces test times and improves throughput in high-volume production environments.
Technical Specifications
- Brand: NI (National Instruments)
- Model: PXIe-4145
- Warranty: One Year
- Condition: 100% New & Original
- Number of Channels: 4 Isolated Channels
- Voltage Range: -25 V to +25 V
- Current Range: Up to 500 mA per channel
- Measurement Resolution: 10 nA (current), 100 µV (voltage)
- Maximum Power: 12.5 W per channel
- Sampling Rate: 600 kS/s
- Bus Interface: PXI Express (x4 Gen 1)
- Connectivity: 25-pin D-SUB connector
Key Features & Benefits
- High-Speed Sequencing: The PXIe-4145 features a hardware-timed sequencing engine that allows for rapid execution of complex voltage and current profiles, minimizing communication overhead between the module and the host controller.
- Superior Channel Density: By offering four independent SMU channels in a single PXIe slot, the PXIe-4145 allows engineers to build high-pin-count test systems with a much smaller physical footprint compared to traditional box instruments.
- SourceAdapt Technology: This module utilizes NI SourceAdapt technology, a digital control loop that allows users to custom-tune the SMU response to any load, eliminating oscillations and protecting sensitive Devices Under Test (DUTs) from voltage overshoots.
Application Scenarios
- Semiconductor Device Testing: Ideal for measuring IV (current-voltage) characteristics of transistors, diodes, and integrated circuits during both the design validation and production phases.
- Consumer Electronics: Used in the validation of mobile phone components, such as power management ICs (PMICs) and display drivers, where multiple power rails must be sourced and monitored simultaneously.
- LED Characterization: The PXIe-4145 is frequently deployed to test high-brightness LEDs, providing precise current sourcing to measure forward voltage and luminosity stability.
Frequently Asked Questions (FAQ)
- Q: What is the primary function of the PXIe-4145?
- A: The PXIe-4145 is a 4-channel Source Measure Unit that simultaneously provides precise DC power and measures electrical characteristics for automated test applications.
- Q: Is PXIe-4145 compatible with legacy systems?
- A: As a PXI Express module, the PXIe-4145 is compatible with PXI Express and PXI Hybrid chassis slots. It cannot be used in older, non-hybrid PXI peripheral slots.
Conclusion
The NI PXIe-4145 represents a benchmark in high-density SMU technology. Its combination of four independent channels, high-speed sampling, and SourceAdapt technology makes the PXIe-4145 an indispensable tool for engineers seeking to maximize measurement precision and test efficiency in a compact modular form factor.
