Agilent/Keysight 6629A DC Power Supply

The Agilent/Keysight 6629A is a precision quad-output DC power supply delivering 50 W across four fully isolated channels in a compact 3U package. Designed for research, development, and automated test environments, it combines dual-range voltage/current capability with low-noise performance and fast settling time. Each output supports independent voltage and current programming with high resolution and accuracy, making it suitable for component characterization, circuit validation, and integrated test systems requiring multiple isolated power rails.

The unit features overvoltage and overcurrent protection with fast CV/CC crossover, remote sensing up to 10 V per lead, and floating output capability to ±240 Vdc from chassis ground. GPIB control via industry-standard SCPI commands and VXI Plug & Play drivers enables both manual front-panel operation and fully automated testing.

Technical Specifications

• 4 fully isolated outputs, 50 W total


• Low Range: 0–16 V, 0–200 mA per output


• High Range: 0–50 V, 0–1 A OR 0–16 V, 0–2 A per output Voltage Programming Accuracy (25°C ±5°C)


• Low Range: 0.016% + 3 mV


• High Range: 10 mV Voltage Resolution


• Low Range: 460 µV


• High Range: 1 mV (50 V range), 3.2 mV (16 V range) Current Programming Accuracy


• Low Range: 0.04% + 185 µA


• High Range: 500 µA Current Resolution


• Low Range: 1 µA


• High Range: 13 µA (1 A range), 33 µA (2 A range) Output Settling Time


• 6 ms to 0.1% of full-scale output after Vset command Ripple & Noise (20 Hz–20 MHz)


• Voltage RMS: 500 µV


• Voltage Peak-to-Peak: 3 mV


• Current RMS: 0.1 mA

Key Features

• Dual-range outputs for optimized voltage/current delivery


• Four independent, fully isolated supplies in single chassis


• Overvoltage and overcurrent protection with fast CV/CC crossover


• Remote sensing: up to 10 V drop compensation per load lead


• Floating output: all channels to ±240 Vdc from ground


• Low noise: 500 µV RMS voltage, 0.1 mA RMS current


• Input Power: 550 W maximum, 720 VA maximum

Compatibility & Integration GPIB (IEEE 488) with SH1, AH1, T6, L4, SR1, RL1, PP1, DC1, DT0, C0, E1 configuration. Optional CIIL interface (Opt 700) and fault/remote inhibit (Opt 750/S50). SCPI command set and VXI Plug & Play drivers for seamless integration into automated test platforms. Physical: 425.5 mm W × 132.6 mm H × 497.8 mm D, 17.4 kg net. UL 1244 listed; conforms to IEC 61010-1.