Rohde & Schwarz NGU401 Source Measure Unit

Overview

The Rohde & Schwarz NGU401 is a four-quadrant source measure unit designed for comprehensive power supply and load simulation testing. With its ability to operate in all four quadrants, the NGU401 can function as both a source and sink with positive or negative voltages and currents. This versatile capability makes it ideal for characterizing devices requiring complex load profiles, battery simulation, and demanding applications in wireless communications, semiconductor testing, and IoT development. The instrument delivers 60 W output power with exceptionally fast load recovery time of less than 30 µs.

Key Features

• Four-quadrant architecture: operates as source and sink with positive and negative voltages/currents
• Output voltage range -20 V to +20 V with current up to ±8 A (≤6 V) or ±3 A (>6 V)
• 60 W maximum output power
• Fast load recovery time < 30 µs with minimal overshoot
• Galvanically isolated, floating channels with overload and short-circuit protection
• Voltage priority and current priority modes for optimized regulation
• High-capacitance compensation mode for DUT capacitance correction
• FastLog high-speed data acquisition up to 500,000 samples per second
• Measurement resolution up to 6 ½ digits for voltage, current, and power
• Low ripple and noise for precise device characterization

Applications

• Four-quadrant power supply and load simulation
• Semiconductor device characterization and testing
• Battery simulation with charging and discharging profiles
• Fast load transient testing (e.g., mobile device mode switching)
• Wireless communications device power profile analysis
• IoT device energy consumption characterization