The Keysight 6627A is a quad-output DC power supply that consolidates four fully isolated, independent power sources within a compact 3U rack-mountable chassis. Each output operates in dual-range mode, delivering 0–20 V at 0–2 A or 0–50 V at 0–0.8 A, with a maximum 40 W per output. Purpose-built for prototype bias power, system integration, and multi-rail test applications, the 6627A combines precise programmable control, low-noise performance, and remote operation via GPIB.
Technical Specifications
Output Configuration
• Four fully isolated outputs
• Dual-range per output: 0–20 V / 0–2 A or 0–50 V / 0–0.8 A
• Maximum power per output: 40 W
Electrical Performance
• Voltage programming accuracy: 0.06% + 50 mV (at 25°C ±5°C)
• Current programming accuracy: 0.16% + 20 mA (at 25°C ±5°C)
• Load regulation (voltage): 0.5 mV
• Line regulation (voltage): 0.01%
• Ripple and noise: 500 µV RMS, 3 mV peak-to-peak (20 Hz to 20 MHz)
• Current ripple: 1 mA RMS
Input Power Requirements
• Maximum input: 550 W (720 VA)
• AC input: 100 VAC (87–106 V, 47–66 Hz, 6.3 A) or 220 VAC (191–233 V, 47–66 Hz, 3.0 A) options
Programmability & Control
• GPIB interface with SCPI command set
• Fast up and down programming with active downprogrammer
• Automatic voltage and current range selection
• Measured readback of voltage and current over GPIB
• Programmable over-voltage and over-current protection
• 10 store-recall states
• Electronic calibration via GPIB
• Power-on self-test capability
• VXIplug&play drivers available
– Key Features
• Quad isolated outputs eliminate cross-talk and simplify multi-rail power distribution
• Active downprogramming sinks full rated current for rapid voltage settling
• Low output noise: 500 µV RMS supports sensitive analog and RF circuits
• Compact 3U form factor optimizes benchtop and rack-mount space allocation
• Single GPIB address controls all four outputs, reducing controller overhead
– Typical Applications
Prototype power distribution, multi-output system bias supplies, RF and analog circuit testing, laboratory power sequencing, automated test equipment (ATE) integration.
– Compatibility & Integration
GPIB-enabled instruments communicate via SCPI command protocol. Standard VXIplug&play drivers support integration into existing test frameworks and software control environments.
