Agilent / Keysight E3649A DC Power Supply

The Keysight E3649A is a 100 W dual-output programmable DC power supply engineered for R&D design verification, production testing, and quality assurance. Each output operates independently across two voltage ranges - 0 to 35 V at 1.4 A, or 0 to 60 V at 0.8 A - with dual-range capability enabling flexible power delivery for diverse circuit requirements.

Technical Specifications

• Voltage regulation: < 0.01% + 3 mV (load and line)


• Current regulation: < 0.01% + 5 mA (load and line)


• Voltage accuracy (12 months @ 25°C ±5°C): < 0.05% + 5 mV (output 1); < 0.1% + 25 mV (output 2)


• Current accuracy (12 months @ 25°C ±5°C): < 0.15% + 5 mA (output 1); < 0.15% + 10 mA (output 2)


• Program resolution: < 5 mV / 1 mA


• Meter resolution: Voltage < 0.05% + 2 counts; Current < 0.15% + 5 mA


• Transient response: < 50 µs for output recovery within 15 mV following full-to-half load current transitions


• Voltage settling time: < 90 ms at any output load condition Protection & Safety


• Over-voltage protection (OVP) with adjustable trip voltage


• OVP accuracy: < 0.5% + 0.5 V


• OVP activation time: < 1.5 ms (OVP ≥ 3 V); < 10 ms (OVP < 3 V)

Key Features

• Vacuum fluorescent display for clear voltage and current readout


• Intuitive front-panel control with rotary knob and self-guiding keypads


• Non-volatile memory stores and recalls up to five complete power supply configurations


• Electronic calibration accessible from front panel


• Output on/off button for fast power cycling

Typical Applications

• Component and subsystem characterization during design phase


• Manufacturing test and burn-in procedures


• Quality verification and acceptance testing

Compatibility & Integration

• Built-in GPIB (IEEE-488) and RS-232 interfaces


• SCPI-compliant command set for direct instrument control


• VXIplug&play drivers available for Agilent VEE, LabVIEW, and LabWindows environments


• Compatible with any PC equipped with GPIB or RS-232 interface cards