Keithley 2290E-5 – 5KV Power Supply

The Keithley 2290E-5 is a single-output 5 kV DC power supply engineered for high-voltage component testing, materials research, insulation validation, and high-energy physics experiments. It delivers precise programmable voltage and current control across a 50 V to 5000 V range with 5 mA maximum output current and 55 W maximum power. The instrument combines low-noise performance - down to 1.0 mVRMS at 1 kV with selectable filtering - with fast transient response and arc/short-circuit protection, making it suitable for applications demanding both accuracy and safety.

Technical Specifications Output Performance

Voltage Range: 50 V to 5000 V

Maximum Current: 5 mA

Maximum Power: 55 W

Voltage Resolution: 1 V

Current Resolution: 1 µA

Voltage Set Accuracy: ±1 V typical (±2 V max); ±(0.01% of setting + 2.5 V)

Current Set Accuracy: 0.5% of full scale; ±(0.01% of setting + 2.5 µA) Stability & Noise

Output Ripple Noise: 100 mVRMS (unfiltered); <3 mVRMS (filtered); 1.0 mVRMS @ 1 kV; 3.0 mVRMS @ 5 kV with Filter 2

Line Regulation: 0.001% for ±10% input voltage change

Load Regulation: 0.005% for 100% load change

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

Temperature Drift: 50 ppm/°C (0° to 40°C) Dynamic Response

Settling Time: <4 seconds to within 1 V of final value; 99.9% within 3 seconds

Recovery Time: 120 ms (40% step load change)

Discharge Time: <6 seconds to <1% full scale (typical); <30 seconds to 50 VDC with filter Power Input

Nominal: 240 VAC

Range: 216 VAC to 264 VAC (±10%)

Frequency: 50 or 60 Hz

Key Features

Programmable voltage and current limits with arc and short-circuit protection

Selectable output filters for noise minimization in sensitive measurements

Safety interlock system for high-voltage operations

Digital display for real-time output monitoring

Analog control via external 0 to +10 V input (±0.2% accuracy) with 1 MΩ impedance

Analog monitor outputs on BNC connectors for voltage and current observation

Stored output charge: <20 µC maximum

Typical Applications

Component and device characterization under high-voltage stress

Dielectric breakdown and insulation testing

Materials research requiring high electric fields

High-energy physics detector and accelerator studies

Compatibility & Integration

IEEE-488 interface for remote programmability

Analog control and monitoring outputs for integration into automated test systems