Keithley 2461 Graphical High Current Digitizing SourceMeter SMU

The Keithley 2461 is a graphical high-current digitizing SourceMeter SMU that sources and measures voltage and current with high precision across a wide range of electronic components and materials. Built around a 5-inch color touchscreen interface, it delivers four-quadrant operation, simultaneous voltage and current digitizing at up to 10,000 samples/second, and peak current pulses to 7 A. The instrument captures transient behavior and waveforms while maintaining 0.05% basic accuracy on both sourcing and measurement functions.

– Technical Specifications

Sourcing
• Voltage: ±100 V, 10 µV resolution, 0.05% basic accuracy
• Current: ±5 A DC / 7 A peak pulse (100 µs width), 1 µA resolution, 0.05% basic accuracy
• Source delay and settling time: 10 µs to 1000 s

Measurement
• Voltage: ±100 V, 10 µV resolution, 0.05% basic accuracy
• Current: ±5 A DC / 7 A peak pulse (100 µs width), 1 µA resolution, 0.05% basic accuracy
• Low-current capability: down to 1 nA resolution
• Low-voltage capability: down to 10 µV resolution
• Digitizing mode: 10,000 readings/second, 1.5 million sample buffer
• Calculated resistance and power measurements from V and I

– Key Features

• Four-quadrant sourcing and sinking operation
• Simultaneous voltage and current measurement with high resolution
• Linear, logarithmic, and custom voltage, current, or resistance sweeps
• Pulse and transient testing capability
• 4-wire Kelvin connections for precision low-resistance measurements
• Built-in waveform generation for dynamic testing
• Output on/off control

– Typical Applications

Device characterization, material testing, power delivery verification, transient behavior capture, semiconductor qualification, and high-current pulse validation in research and production environments.

– Compatibility & Integration

SCPI-compliant programmability with support for LabVIEW, MATLAB, Python, and standard test automation environments.