Keithley 2290-5 – 5KV Power Supply

The Keithley 2290-5 is a precision high-voltage DC power supply engineered for semiconductor testing, materials research, and high-energy physics experiments. It delivers up to 5 kV with a maximum output current of 5.000 mA, providing 25 W of power. The unit combines exceptional voltage stability with low output noise, offering both filtered and unfiltered operation modes to meet demanding measurement requirements.

Technical Specifications

• Range: 50 V to 5000 V DC


• Resolution: 1 V (set and display)


• Set Accuracy: ±(0.01% of setting + 2.5 V)


• Display Accuracy: ±1 V typical (±2 V maximum)


• Line Regulation: 0.001% for ±10% line voltage change


• Load Regulation: 0.005% for 100% load change (typical) Output Current


• Maximum: 5.000 mA DC


• Resolution: 1 µA


• Set Accuracy: ±(0.01% of setting + 2.5 µA)


• Display Accuracy: ±1 µA typical (±2 µA maximum)


• Trip Response Time: <10 ms Output Ripple & Noise (10 Hz – 100 kHz)


• Unfiltered: 1.0 mV RMS @ 1 kV; 2.0 mV RMS @ 3 kV; 3.0 mV RMS @ 5 kV


• With Filter 1 or Filter 2: <3 mV RMS Stability & Temperature


• Voltage Stability: ±0.01% per hour; <0.03% per eight hours


• Temperature Drift: 50 ppm/°C (0° to 40° C, typical) Response Characteristics


• Rise Time (full load): 1.5 seconds (0 to 5000 V, unfiltered); 4 seconds with Filter 2


• Discharge Time (full load): 1 second (5000 V DC to 1 V DC)


• Settling Time: Within 99.9% of final value in 3 seconds


• Recovery Time: 120 ms for 40% load current step change (typical)


• Stored Output Charge: <0.9 mC maximum Arc and Short Circuit Protection: Provided

Key Features

• Selectable output filters to reduce ripple below 3 mV RMS


• Current limit and trip capability (0 to 105% of full scale)


• Fast trip response (<10 ms) for circuit protection


• Low temperature drift and exceptional long-term stability


• Quick discharge capability (<12 to 30 seconds, depending on filter mode)

Typical Applications

• Semiconductor device and materials testing


• High-voltage component characterization


• High-energy physics experiments


• Dielectric breakdown studies

Compatibility & Integration Input Power

• Voltage: 120 V ±10%, 50 or 60 Hz (98 to 132 VAC)


• Input Power: 55 watts Interface


• IEEE-488.1 (GPIB) compliant, programmable


• GPIB Address Range: 0 to 30


• Requires shielded GPIB cables (e.g., Keithley Model 7007)