The Keysight N7953A is a 1000 W single-output DC power supply engineered for automated test equipment (ATE) applications requiring high-speed dynamic sourcing and precision measurement. Built on the VersaPower architecture within the N7900 Series Advanced Power System family, it delivers test speeds up to 100x faster than standard power supplies while maintaining DMM-class measurement accuracy. The unit occupies 1U of rack space and operates from 240 VAC input.
Technical Specifications
• Output Range: 0–60 V, 0–16.7 A
• Power Rating: 1000 W (single output)
• Output Ripple and Noise: 1 mV RMS; 9 mV peak-to-peak
• Load Regulation: 2 mV; 1 mA
• Voltage Programming and Measurement Accuracy: 0.03% + 6 mV (typical)
• Current Programming and Measurement Accuracy: 0.04% + 2.5 mA (typical)
• Programming Precision: 14-bit
• Measurement Precision: 18-bit
• Command Processing Speed: < 2 ms
• Programming Speed (Up/Down): Up to 500 µs
– Key Features
• Dual Measurement Capability: Simultaneous voltage and current measurement with selectable averaged (DMM-quality) or digitized (dynamic profile) modes. Integrated power, peak power, watt-hour, and amp-hour measurements.
• Two-Quadrant Operation: Full two-quadrant capability with the optional N7909A power dissipater unit; standalone operation supports 10% rated current two-quadrant sourcing with programmable ± current limits and automatic down-programming.
• Paralleling: Multiple APS units link together (up to 10 kW total) with integrated equal current sharing for higher output current demands.
• Output Resistance Simulation: Programmable output impedance to emulate battery internal resistance.
• Protection: Integrated fast protection circuits.
• Event Logging (Optional): The N7908A black-box recorder captures measurement data, trigger events, and status bits in real time.
– Typical Applications
Dynamic power characterization, battery simulation, power storage testing, multi-output system validation, and high-throughput automated power measurements.
– Compatibility & Integration
Remote control via GPIB (IEEE-488) and LAN (LXI-Co) interfaces. Mounts in standard 19-inch racks.
