The Keysight N6784A is a 4-quadrant general-purpose source/measure unit (SMU) that sources and measures voltage and current with precision across bipolar ranges. This single-output instrument functions simultaneously as a bipolar voltage or current source and as a bipolar constant voltage (CV) or constant current (CC) electronic load, making it suitable for automated test systems and laboratory characterization of diverse devices under test.
Technical Specifications
Output Ratings
• Voltage: ±20 V or ±6 V selectable
• Current: ±1 A or ±3 A selectable
• Power: 20 W maximum
• Quadrants: 4
Programming Accuracy (at 23°C ± 5°C, after 30-minute warm-up)
• Voltage (20 V range): 0.025% + 1.8 mV
• Voltage (6 V range): 0.025% + 600 µV
• Current (3 A and 1 A ranges): 0.04% + 300 µA
• Current (10 mA range): 0.25% + 5 µA
Measurement Accuracy (at 23°C ± 5°C)
• Voltage (20 V range): 0.025% + 1.2 mV
• Current (3 A range): 0.03% + 250 µA
• Current (100 mA range): 0.025% + 10 µA
• Current (10 µA range): 0.025% + 8 nA
Output Programming Speed
Output voltage transitions in 10 µs or at 100 kHz into resistive loads.
– Key Features
• Glitch-free sourcing and measurement during output and range transitions, protecting capacitive loads up to 150 µF
• Four current measurement ranges for precise DUT current capture across operating modes
• Fast modulation of DC output up to 100 kHz for waveform creation and DUT stimulation
• High-speed digitized measurements at 200 kHz digitizer rate, capturing power data every 5 µs
• Excellent transient response maintaining voltage or current stability during high-speed load changes
– Typical Applications
Power device characterization, battery charging profiles, precision current sourcing, semiconductor parameter testing, and automated electronic load simulation.
– Compatibility & Integration
The N6784A integrates into automated test platforms requiring simultaneous source and measurement capability with minimal output glitching and fast dynamic response.
