Agilent/Keysight 6641A DC Power Supply

The Agilent/Keysight 6641A is a single-output, 200 W DC power supply engineered for high-throughput manufacturing test environments. It delivers 0–8 V at 0–20 A (ambient 40°C) with fast programming times and exceptional output stability. The unit combines precise voltage and current regulation with low ripple performance, making it suitable for demanding DUT characterization and power sequencing applications.

Technical Specifications

• Voltage: 0–8 V


• Current: 0–20 A (at 40°C); 18 A (at 50°C); 17 A (at 55°C)


• Power: 200 W Programming Accuracy (25°C ±5°C)


• Voltage: 0.06% + 5 mV


• Current: 0.15% + 26 mA Readback Accuracy (25°C ±5°C)


• Voltage: 0.07% + 6 mV


• Positive current: 0.15% + 18 mA


• Negative current: 0.35% + 40 mA Output Ripple & Noise (20 Hz–20 MHz)


• Voltage RMS: 300 µV


• Voltage peak-to-peak: 3 mV


• Current RMS: 10 mA Regulation


• Load regulation: 1 mV


• Line regulation: 0.5 mV Programming Response


• Rise/fall time (10/90%, 90/10%): <15 ms


• Settling time (within 1 LSB): <60 ms


• Transient recovery: <100 µs for 50% load step (within 0.1% rating or 20 mV)

Key Features

• Fast crowbar and mode crossover protection safeguard DUTs from voltage and current surges


• Analog control of output voltage and current via 0 to –5 V input signals (10 kΩ nominal impedance)


• Fan-speed control minimizes acoustic noise during bench operation


• Parallel and series connection support for multi-unit system configurations

Compatibility & Integration

• GPIB interface with IEEE-488.2 and SCPI command support


• Serial link enables daisy-chaining up to 16 units to a single GPIB address


• VXI plug-and-play drivers available for automated system integration


• Front-panel and remote programming of output and protection settings