Agilent / Keysight E3640A DC Power Supply

The Keysight E3640A is a 30 W single-output DC power supply delivering dual-range voltage and current outputs for benchtop and system integration. Linear topology ensures stable, regulated power with minimal noise - ideal for R&D, production testing, and precision laboratory work. Remote control via GPIB and RS-232 enables seamless automation and test system integration.

Technical Specifications

• Range 1: 0–8 V at 3 A


• Range 2: 0–20 V at 1.5 A


• Maximum power: 30 W Regulation & Accuracy:


• Load regulation: ±0.01% of output + 3 mV


• Line regulation: ±0.01% of output + 3 mV


• Voltage settling time: <90 ms


• Transient response: <50 µs (15 mV recovery window) Protection:


• Overvoltage protection (OVP) user-configurable with <0.5% + 0.5 V accuracy


• OVP activation: <1.5 ms (≥3 V), <10 ms (<3 V) Resolution:


• Front panel: 10 mV / 1 mA


• Programmatic: <5 mV / 1 mA AC Input:


• 115 VAC ±10% (standard); 100 VAC or 230 VAC options


• Frequency: 47–63 Hz

Key Features

• Dual-range operation maximizes flexibility across low and high voltage applications


• Low ripple and noise on both normal mode voltage and common mode current


• Remote voltage sensing at rear terminals compensates for load lead drops


• Vacuum fluorescent display with rotary knob and keypad control


• Five nonvolatile memory slots for setup storage and recall


• Built-in voltage and current measurement


• Front panel binding posts accept safety leads, banana clips, and stripped wire


• Rear screw-type output terminals; remote sense terminals

Typical Applications Precision component testing, device characterization, analog circuit development, and automated production test environments requiring stable, noise-free DC power with fast transient response.

Compatibility & Integration GPIB (IEEE-488) and RS-232 interfaces enable direct integration into automated test systems and remote command operation. Remote sensing supports voltage drop compensation in high-current or long-lead applications.