The National Instruments 783761-01, also known as the PXIe-4137, is a high-performance PXI Source Measure Unit (SMU) designed for demanding applications. This unit operates with 4-quadrant capability and is capable of sourcing up to 40 W of DC power, with pulsing capabilities reaching 500 W. Utilizing cutting-edge analog-to-digital converter technology, it achieves high-precision measurements with a current resolution of 100 fA and acquisition speeds up to 1.8 MS/s. The 783761-01 also incorporates SourceAdapt technology, allowing users to optimize transient response for enhanced stability and accuracy across various load conditions.

The SMU supports a DC voltage range of ±200 V and can handle a current range of ±1 A, with pulse current capabilities up to ±3 A. It is designed with robust channel-to-earth ground isolation, supporting continuous application up to 250 V DC, and provides a withstand capability of 1,000 V RMS, ensuring enhanced safety in various operating environments. The unit features a guard output with cable guard functionality, a nominal output impedance of 3 kΩ, and a typical offset voltage of 1 mV.

With an accuracy of ±0.025% for voltage programming and up to ±0.04% for current programming, the 783761-01 delivers exceptional performance. It is equipped with comprehensive protection features, including automatic shutdown for overcurrent, overvoltage, sink overload, and overtemperature, complemented by safety interlock capabilities to disable high voltage output as necessary. Transient response time for load changes is less than 70 µs, making it suitable for precision testing needs.

The unit is housed in a compact 3U, one-slot PXI Express/CompactPCI Express module configuration, measuring 2.0 cm × 13.0 cm × 21.6 cm and weighing approximately 428 g. It ensures reliable operation within an operating temperature range of 0 °C to 55 °C and a storage range of -40 °C to 71 °C, with an allowable humidity range of 10% to 90% (noncondensing). The PXIe-4137 conforms to international standards for electromagnetic compatibility and safety, making it a trusted solution for applications such as IC testing, PMICs, RFICs, LEDs, and optical transceivers. Regular calibration is recommended at one-year intervals to maintain optimal performance.