Agilent/Keysight 6627A DC Power Supply

The Agilent/Keysight 6627A is a quad-output, precision system DC power supply delivering 40 W per output in a compact 3U rack form factor. Each of the four fully isolated outputs operates independently with dual-range capability, enabling flexible voltage-current trade-offs for diverse test requirements. Fast programming response, tight accuracy specifications, and active down-programming make this instrument well-suited for automated test equipment integration.

Technical Specifications

• Four fully isolated outputs, 40 W per output (160 W total maximum)


• Low Range: 0–20 V, 0–2 A


• High Range: 0–50 V, 0–0.8 A


• Programming Accuracy: ±0.06% + 50 mV (voltage); ±0.16% + 20 mA (current)


• Readback Accuracy: ±0.05% + 50 mV (voltage); ±0.1% + 4 mA (positive current); ±0.2% + 8 mA (negative current) Performance Characteristics


• Programming Response Time: 2 ms typical (0.1% settling on low range); 6 ms typical (high range)


• Ripple and Noise (20 Hz–20 MHz): 500 µV RMS / 3 mV peak-to-peak in constant voltage mode; 1 mA RMS in constant current mode


• Load Regulation: 2 mV (voltage); 2 mA (current)


• Line Regulation: 0.05% of setting + 5 mV (voltage); 0.2% of setting + 10 mA (current)


• Overvoltage Protection: 100 mV typical (20 V range); 175 mV typical (50 V range)


• Remote Sensing: Up to 1 V drop per load lead


• Active Down-programmer: Sinks full rated current Physical & Environmental


• Dimensions: 425.5 mm W × 132.6 mm H × 497.8 mm D


• Weight: 17.4 kg net; 22.7 kg shipping


• Operating Temperature: 0°C to 55°C


• Altitude: Up to 2000 m


• Relative Humidity: Maximum 95% non-condensing


• Installation Category II; Pollution Degree 2

Key Features

• GPIB (IEEE 488) interface with full command set (SH1, AH1, T6, L4, SR1, RL1, PP1, DC1, DT0)


• SCPI programming language support


• VXIPlug&Play driver availability


• Optional 750 module for remote inhibit, relay control, and discrete fault indication

Typical Applications Automated test systems requiring multiple independent, low-noise power sources with fast transient response and high accuracy. Ideal for device characterization, burn-in testing, and bench-level system validation.

Compatibility & Integration GPIB connectivity enables direct integration into ATE architectures. SCPI command compatibility and VXIPlug&Play drivers support rapid test program development.