Agilent / Keysight E3645A DC Power Supply

The Agilent/Keysight E3645A is a programmable DC power supply for benchtop and system integration use, delivering stable, low-noise power across dual voltage and current ranges. Operating from 0 to 35 Vdc at 0–2.2 A or 0 to 60 Vdc at 0–1.3 A with a maximum power output of 80 W, this unit combines precision voltage and current control with automated test capability. Built-in GPIB and RS-232 interfaces support SCPI programming, enabling remote operation and integration into larger test systems.

Technical Specifications

• Range 1: 0–35 Vdc at 0–2.2 A


• Range 2: 0–60 Vdc at 0–1.3 A


• Maximum Power: 80 W Programming Accuracy (25°C ±5°C)


• Voltage: ±(0.05% of output + 10 mV)


• Current: ±(0.2% of output + 10 mA) Regulation Performance


• Load Regulation (Voltage): <0.01% + 3 mV


• Load Regulation (Current): <0.01% + 250 µA


• Line Regulation (Voltage): <0.01% + 3 mV


• Line Regulation (Current): <0.01% + 250 µA Ripple and Noise (20 Hz to 20 MHz)


• Voltage (RMS): <0.5 mVrms; (Peak-to-Peak): <8 mVpp


• Current (RMS): <4 mArms; Common Mode: <1.5 µArms Readback Accuracy (25°C ±5°C)


• Voltage: <0.05% + 5 mV


• Current: <0.15% + 5 mA Transient Response


• Voltage settling time: <90 msec at any output load condition

Key Features

• User-configurable overvoltage and overcurrent protection circuits


• Remote sensing capability to eliminate load lead voltage drops


• Dual front and rear output terminals with versatile binding posts accommodating test leads, banana plugs, and stripped wires


• Non-volatile memory stores and recalls up to five operating states


• Vacuum fluorescent digital display with rotary knob control and self-guiding keypads


• Automatic speed-controlled cooling fan for low acoustic noise


• Integrated carrying handle for benchtop portability


• Dimensions: 88.5 mm (H) × 212.8 mm (W) × 348.3 mm (D); Weight: 14.77 lb (6.7 kg)

Compatibility & Integration Standard GPIB (IEEE-488) and RS-232 interfaces with SCPI language support enable direct integration into automated test environments. VXI plug-and-play software drivers are available for Agilent VEE, National Instruments LabView, and LabWindows, streamlining code development and system configuration.