The Stanford Research Systems PS355 is a 10 W high-voltage DC power supply delivering negative output from −100 V to −10 kV with 1 V resolution. Engineered for precision instrumentation and sensitive experiments requiring stable, low-ripple high voltage, the PS355 combines programmable voltage and current control with fast arc and short-circuit protection. Output voltage regulation reaches 0.001% for ±10% line variations and 0.04% across full-load swings. Ripple performance is <0.01% of full scale from 300 Hz to 300 kHz. The unit supports analog programming and monitoring via 0 to +10 VDC signals, RS-232 command interface, and optional GPIB connectivity for laboratory automation. At 8 lbs and consuming less than 80 VA, it integrates into standard bench and rack configurations while maintaining exceptional long-term stability of 0.01% per hour.
Technical Specifications
Output Voltage
• Range: −100 V to −10 kV
• Resolution: 1 V
• Set Accuracy: 0.06% of full scale
• Display Accuracy: ±1 V typical, ±2 V maximum
• Line Regulation: 0.001% for ±10% input change
• Load Regulation: 0.04% for 100% load change
• Ripple (rms): <0.01% of full scale (300 Hz to 300 kHz)
• Slew Rate: 7,000 V/s typical
Output Current
• Maximum Current: 1 mA
• Current Limit Range: 0 to 105% of full scale
• Current Trip Range: 10 µA to 105% of full scale
• Trip Response Time: <10 ms
• Current Set Accuracy: 0.5% of full scale
• Current Resolution: ±1 µA
Stability & Temperature
• Long-term Stability: 0.01% per hour, <0.03% per 8 hours
• Temperature Drift: 50 ppm/°C (0 °C to 50 °C)
• Discharge Time: <6 s to <1% full scale, no load
– Key Features
• Programmable voltage, current limit, and current trip
• Arc and short-circuit protection with <10 ms response
• Analog inputs for remote voltage programming (0 to +10 VDC)
• Dual analog outputs for voltage and current monitoring (0 to +10 VDC, 1 Ω output impedance)
• 16 Hz update rate for real-time feedback
• Stored charge: <20 µC maximum
• Recovery time: 12 ms for 40% load step
– Interfaces & Control
• RS-232 standard interface
• GPIB optional connectivity
• SHV male connector (Kings type 1704-1 or equivalent) for high-voltage output
– Power Requirements
• Input: 90 VAC to 264 VAC, 47 Hz to 63 Hz
• Power Consumption: <80 VA
