Agilent / Keysight E3648A DC Power Supply

The Keysight E3648A is a 100 W dual-output DC power supply engineered for benchtop and system-level test applications. Each output operates independently across dual voltage ranges - 0 to 8 VDC at 5 A, or 0 to 20 VDC at 2.5 A - delivering stable, low-noise power for electronic development, manufacturing test, and quality assurance. Line regulation below 0.01% + 3 mV and load regulation of 0.01% + 3 mV ensure exceptional voltage stability across changing load conditions.

Voltage ripple and noise measure less than 5 mVpp (0.5 mVrms) from 20 Hz to 20 MHz, critical for sensitive analog and RF circuits.

Technical Specifications

• Output Power: 100 W total, two independent channels


• Voltage Ranges: Output 1: 0–8 VDC @ 5 A; Output 2: 0–20 VDC @ 2.5 A


• Voltage Regulation: Line <0.01% + 3 mV; Load <0.01% + 3 mV


• Programming Accuracy: Voltage <0.05% + 10 mV; Current <0.2% + 10 mA (25°C ±5°C)


• Readback Accuracy: Voltage <0.05% + 5 mV; Current <0.15% + 5 mA (25°C ±5°C)


• Ripple & Noise: <5 mVpp / 0.5 mVrms (20 Hz–20 MHz)


• Transient Response: <50 µs recovery to 15 mV; <90 msec settling time


• OVP Accuracy: <0.5% + 0.5 V; activation <1.5 msec (≥3 V) / <10 msec (<3 V)


• Temperature Coefficient: Voltage ±(0.01% output + 3 mV)/°C; Current ±(0.02% output + 3 mA)/°C


• 8-Hour Stability: Voltage ±(0.02% output + 2 mV); Current ±(0.1% output + 1 mA)


• AC Input: 47–63 Hz; 115 Vac ±10% standard (100 Vac or 230 Vac options available)

Key Features

• Vacuum fluorescent display for output monitoring


• Rotary knob and self-guiding keypads for intuitive control


• GPIB (IEEE-488) and RS-232 interfaces for system integration


• SCPI-compatible programming

Compatibility & Integration VXI plug and play drivers support Keysight VEE, National Instruments LabVIEW, and LabWindows, enabling rapid integration into automated test environments.