The Keithley 2657A High Power System SourceMeter is a precision instrument that sources and measures high-voltage and high-current signals in a single integrated unit. It combines a power supply, current source, digital multimeter, arbitrary waveform generator, pulse generator, and electronic load—delivering up to 180 W of DC or pulsed power. The instrument operates across four quadrants, sourcing and sinking both voltage and current for comprehensive characterization of power semiconductors, high-power electronics, and advanced materials.
Technical Specifications
Power Output & Sourcing
• Maximum output power: 180 W DC or pulsed
• Voltage source/sink: 3000 V @ 20 mA or 1500 V @ 120 mA
• Current source/sink: 120 mA at 1500 V or 20 mA at 3000 V
• Source voltage ranges: ±200 V to ±3 kV
• Source current ranges: ±1 nA to ±120 mA
• Output settling time: <5 ms (200 V/500 V), <7 ms (3000 V typical)
• Current settling: <5 ms (120 mA), <10 ms (2 mA), <200 ms (1 µA typical)
Measurement Precision
• Low current resolution: 1 fA
• Dual 22-bit integrating ADCs for precise measurements
• Dual 18-bit digitizers: 1 µs per point resolution
• Voltage accuracy (200 V range): ±(0.03% + 50 mV), 5 mV programming resolution
• Typical voltage source noise: 0.005% of range
• Typical current source noise: 0.08% of range
Pulse & Timing Performance
• Pulse width resolution: 1 µs with ±10 µs accuracy
• Jitter: 7 µs
• Trigger response: 0.5 µs typical
• Synchronization: <0.5 µs typical (single or multi-node)
– Key Features
• Four-quadrant operation enables bidirectional sourcing and measurement
• TSP® compliance for integration with Series 2600B System SourceMeter instruments
• 14 open-drain digital I/O bits (5.25 V max)
• High-speed test automation with asynchronous operation via TSP technology
– Typical Applications
Power semiconductor characterization, high-power device testing, transient capture analysis, pulse power measurements, and materials evaluation under high-voltage/high-current stress.
– Compatibility & Integration
Connects via IEEE-488.1/.2, LXI Ethernet, RS-232, and USB 2.1 Host Controller. Operates on 100–250 VAC, 50–60 Hz (auto-sensing), 550 VA maximum. Temperature range: 0 °C to 50 °C.
