R&S®NGU source measure units

Two/four quadrants: operates as source and sink

Simulates batteries or loads

The two/four-quadrant architecture of these source measure units can function as a source and a sink to simulate batteries or loads. The SMU automatically switches from source mode to sink mode as soon as the externally applied voltage exceeds the set nominal voltage. With its four-quadrant architecture, the R&S®NGU401 can supply positive or negative voltages or currents and can act as a source or sink in both polarities.

High speed data acquisition

FastLog function

The R&S®NGU source measure units offer the FastLog function to capture voltage and current measurement results. This data can be stored on an external USB storage device or transferred to an external PC via USB or LAN. With an acquisition rate of up to 500 ksample/s, voltage and current results are available every 2 μs.

Voltage priority and current priority mode

Optimized for voltage/current regulation

In voltage priority mode, fast voltage regulation provides short recovery times of less than 30 μs. Current regulation is designed to be somewhat slower to avoid oscillation. When precise and quick current regulation is desired, the R&S®NGU source measure units can be operated in current priority mode. Optimized for fast current regulation (load recovery time < 50 μs), this mode allows tasks such as LED testing, which are sensitive to even short current spikes.

High-capacitance mode

Compensate capacitors

Typical measurement configurations often have capacitance at the DUT input. Connecting the power supply with leads causes low pass behavior from the leads and capacitance. In high-capacitance mode, R&S®NGU source measure units compensate for the capacitance and display the current directly at the DUT.

Fast load regulation

Handles fast load changes

Consumer electronics such as mobile phones and IoT devices require very little power in sleep mode. However, the current increases abruptly as soon as the device switches to transmit mode. A power supply for these DUTs must handle load changes from a few nA to the ampere range without creating voltage drops or overshoots.

Easy to use, price transparent configurator

We help customers choose the right T&M instrument quickly, easily and with full price transparency. The R&S®NGU and other instruments from the R&S®Essentials portfolio can now be configured online, providing the following benefits:
- user-friendly and easy to navigate configurator
- full cost transparency at every configuration step
- fast order processing through authorized distribution partners 
- next-day delivery from selected partners