The Keithley 2611B is a single-channel, 4-quadrant Source Measure Unit integrating precision voltage and current sourcing, high-resolution measurement, and pulse generation into one instrument. Built on third-generation SMU technology, it delivers 200 W total output power with 6½-digit resolution across benchtop and production test environments.
Technical Specifications
Sourcing Performance
• Voltage source: ±200 mV to ±200 V (max 202.3 V in 200V range, 23.3 V in 20V range)
• Current source: ±100 nA to ±10 A (10 A accessible in pulse mode only; 1.515 A DC maximum)
• Voltage regulation (line): 0.01% of range
• Voltage regulation (load): ±(0.01% of range + 100 µV)
• Current regulation (line): 0.01% of range
• Current regulation (load): ±(0.01% of range + 100 pA)
• Maximum output power: 30.3 W to 40.4 W per channel
Measurement Capabilities
• Voltage measurement: 100 nV to 204 V
• Current measurement: 100 fA to 1.53 A
• Voltage resolution: 100 nV
• Current resolution: 100 fA
• Resistance measurement: 500 nΩ to 100 TΩ
• Sense input impedance: >10 GΩ
• Sense lead resistance: Maximum 1 kΩ for rated accuracy
Pulse Capabilities
• Pulse current: Up to 10 A
Performance Characteristics
• Output settling time: 6 Ω); <100 µs typical (1 mA range); <25 ms typical (100 nA range)
• Noise (10 Hz–20 MHz): <20 mV peak-peak typical; <3 mV RMS typical
• Guard offset voltage: <4 mV typical
• Guard current: <10 mA
• Temperature coefficient: ±(0.15 × accuracy specification)/°C (0°–18°C and 28°–50°C, normal mode)
– Key Features
• 4-quadrant operation enables both sourcing and sinking of voltage and current
• Integrated arbitrary waveform and pulse generation
• Electronic load functionality
• 6½-digit DMM resolution for precision characterization
– Compatibility & Integration
• USB 2.0, LXI-C, GPIB, RS-232 interfaces
• Digital I/O available
• TSP-Link expansion technology support
– Typical Applications
I-V characterization, semiconductor device testing, power supply validation, production test automation.
