National Instruments 783760-01 PXI Source Measure Unit

The National Instruments 783760-01 is a PXI Source Measure Unit (SMU). The unit is also identified as the PXIe-4136 unit and delivers high power, precision, and speed with its 4-quadrant operation. It is a hardware-timed instrument equipped with a high-speed sequencing engine that allows for the synchronization of acquisitions between multiple SMUs. This 783760-01 unit supports DMA streaming that enables the transfer of large waveforms and measurement data at the instrument's full update and sample rates. It makes this SMU suitable for manufacturing tests, board-level tests, and lab characterization of devices such as ICs, PMICs, RFICs, LEDs, and optical transceivers.

The NI 783760-01 operates within a DC voltage range of ±200 V and a DC current range of ±1 A. It features channel-to-earth ground isolation while supporting continuous 250 V DC and withstanding up to 1,000 V RMS. The guard output characteristics include a cable guard with an output impedance of 3 kΩ and an offset voltage of 1 mV. Its power requirements include 2.5 A from the 3.3 V rail and 2.7 A from the 12 V rail. This SMU device offers various voltage and current source and sink ranges that include 600 mV, 6 V, 20 V, and 200 V for voltage, and 1 μA to 1 A for current. The voltage programming and measurement accuracy varies by range along with typical accuracy of 0.020% + 100 μV for the 600 mV range, and 0.025% + 20 mV for the 200 V range. 

Overvoltage protection feature is provided in this NI 783760-01 unit along with an accuracy of 0.1% + 200 mV and a maximum OVP limit of 210 V. The transient response time is under 70 μs for a load current change from 10% to 90% of range. Whereas, the settling time varies depending on mode and range, with typical values ranging from 50 μs to 500 μs. Load regulation is maintained at 200 mV per A of output load change for local sense and 100 μV per A for remote sense. The NI 783760-01 includes several safety features, such as automatic shutdown for overcurrent, overvoltage, sink overload, and overtemperature conditions. It supports various input and output triggers with configurable polarity and pulse width. The physical dimensions are 2.0 cm × 13.0 cm × 21.6 cm (0.8 in. × 5.1 in. × 8.5 in.) and it weighs only 419 g. This 783760-01 SMU operates in temperatures ranging from 0 °C to 55°C. Compliance and certifications of this unit include standards for electromagnetic compatibility and electrical equipment safety.