Agilent / Keysight E3632A DC Power Supply

The Keysight E3632A is a 120 W single-output programmable DC power supply engineered for benchtop and system-level testing. Its dual-range output capability delivers 0–15 V at 7 A or 0–30 V at 4 A, providing flexibility across diverse power requirements. The unit produces exceptionally clean power with normal-mode voltage ripple and noise below 350 µVrms and 2 mVpp, ensuring stable delivery to sensitive circuits.

Programming and readback accuracy reach ±0.05% + 10 mV and ±0.05% + 5 mV respectively for voltage, with load and line regulation held to 0.01%. Dual vacuum-fluorescent meters display voltage and current in real time. The supply includes programmable overvoltage and overcurrent protection with independent enable/disable keys, plus remote sensing for precision load compensation.

Technical Specifications

• Output Power: 120 W maximum


• Output Voltage: 0–15 V (Range 1) or 0–30 V (Range 2)


• Output Current: 7 A (Range 1) or 4 A (Range 2)


• Programming Accuracy (Voltage): ±0.05% + 10 mV


• Programming Accuracy (Current): ±0.2% + 10 mA


• Readback Accuracy (Voltage): ±0.05% + 5 mV


• Readback Accuracy (Current): ±0.15% + 5 mA


• Load and Line Regulation: 0.01%


• Normal-Mode Voltage Ripple & Noise (20 Hz–20 MHz): < 350 µVrms / 2 mVpp


• Normal-Mode Current Ripple & Noise: < 2 mA rms


• Common-Mode Current Ripple & Noise: < 1.5 µA rms

Key Features

• Dual-range output for optimized performance across voltage and current requirements


• Programmable overvoltage protection (OVP) and overcurrent protection (OCP)


• Remote sensing capability for accurate voltage regulation at the load


• Front-panel knob control with three-state store/recall memory


• Vacuum-fluorescent dual meters for simultaneous voltage and current display


• Front-panel lockout to prevent unauthorized changes


• GPIB (IEEE-488) and RS-232 remote programming interfaces

Typical Applications

• Automated test systems requiring stable, low-noise DC power


• Bench testing of precision analog and mixed-signal circuits


• System integration where remote programmability is essential


• Applications demanding tight voltage and current regulation

Compatibility & Integration The E3632A connects via standard GPIB and RS-232 interfaces for integration into automated test environments. Its 115 VAC input and compact benchtop form factor (8.4 × 5.2 × 13.7 inches) suit laboratory and production floor deployment. Three-year warranty. Recommended warm-up period: 1 hour before verification or calibration.