The Keithley 2440-C SourceMeter combines voltage source, current source, voltage meter, current meter, and ohmmeter functionality in a single-channel instrument. It delivers 50W maximum output across a 40V, 5A range with 4-quadrant operation, enabling both power sourcing and sinking across semiconductor, communications, computer, automotive, and medical test environments.
Technical Specifications
Source Performance:
• Voltage ranges: 200mV, 2V, 10V, 40V
• Current ranges: 500pA to 5.25A
• Programming resolution: 5 µV (200mV range)
• Voltage sourcing accuracy: 0.02% + 600 µV (200mV–2V ranges); 0.02% + 1.2 mV (10V range); 0.02% + 4.8 mV (40V range)
• Maximum output power: 55W four-quadrant operation
• Output slew rate: 0.25 V/µs (40V range, 100mA compliance); 0.08 V/µs (10V range, 100mA compliance)
• Output settling time: 100 µs typical (0.1% final value, resistive load, 10µA–100mA range)
• Transient response time: 350 µs minimum post-load-step recovery
• Noise: 50mV typical (10Hz–1MHz, peak-to-peak)
• Command processing: 10ms (autorange on); 7ms (autorange off)
• DC floating voltage: ±40VDC from chassis ground
Measurement:
• Voltage measurement ranges: 1µV to 42V
• Current measurement ranges: 100pA to 5.25A
• Resolution: 6½-digit
• Basic accuracy: 0.012%
• Measurement speed: 1700 readings/second at 4½ digits via GPIB
– Key Features
• Bipolar voltage and current compliance with user-selectable overvoltage protection (5% tolerance)
• Source/sink limits: ±10.5V @ ±5.25A, ±42V @ ±1.05A
• Single-value compliance setting for both bias directions
• Overshoot <0.1% typical (1mA step, RL=10kΩ, 10V range)
• 1-hour warm-up time to rated accuracies
– Typical Applications
Automated test, device characterization, production testing, and parametric measurement across semiconductor, communications, computer, automotive, and medical device industries.
– Compatibility & Integration
GPIB interface supports 1700 readings/second measurement throughput.
