Agilent/Keysight 66312A DC Power Supply

The Agilent/Keysight 66312A is a 40 W single-output DC power supply engineered for automated test and characterization of digital wireless communication devices. It operates as both precision DC source and dynamic measurement instrument, capturing voltage and current waveforms to characterize pulsed current profiles and peak demand behavior. The supply delivers fast transient response, precise control, and integrated protection across R&D, quality assurance, and manufacturing environments.

Technical Specifications

• Output Power: 40 W


• Output Voltage Range: 0 to 20 V


• Output Current Range: 0 to 2 A


• Programming Resolution: 12-bit (voltage/current)


• Load Regulation: 2 mV, 0.5 mA


• Line Regulation: 0.5 mV, 0.5 mA


• Ripple and Noise: 0.5 mVrms, 3 mVp-p, 1 mArms


• Drift: 0.5 mV, 20 µA


• Transient Response Time: < 100 µs


• Output Voltage Settling Time: 6 ms


• Current Sinking Capability: Up to 1 A Dynamic Measurement Capabilities


• Measurement Resolution: 16-bit


• Minimum Current Measurement: 2 microamperes


• Waveform Acquisition: Up to 4096 data points, triggered


• Sampling Interval: 15.6 µs to 31,200 s


• Measurement Bandwidth: Current waveforms to 10 kHz (full range), above 10 kHz in high-current range only


• Measurement Time: 50 ms average


• Command Processing Time: 4 ms average

Key Features

• Over-voltage, over-current, and over-temperature protection


• Reverse input/diode forward protection


• 16-bit measurement resolution enables precision characterization of low-current behavior


• Triggered data acquisition with configurable sampling intervals supports detailed transient analysis

Typical Applications Testing and characterization of telecommunications equipment, particularly wireless communication products requiring peak current and pulsed-load analysis.

Compatibility & Integration

• SCPI programming language support


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


• Front-panel keypad and rotary encoder control


• 14-character vacuum fluorescent display