The Keithley 2400-LV SourceMeter is a single-channel instrument that integrates sourcing, measurement, power supply, current source, and electronic load functionality into one compact unit. Designed for low-voltage device and material characterization, it combines tightly coupled source and measurement circuitry to minimize test development time and system complexity. Four-quadrant operation enables simultaneous sourcing and sinking of power across a wide dynamic range.
## Technical Specifications
**Source Capabilities**
• Voltage Range: 5µV to 21V
• Current Range: 50pA to 1.05A
• Maximum Output Power: 20W
• Output Slew Rate (±30%): 0.08V/µs (20V range, 100mA compliance)
• Output Settling Time: 100µs typical to 0.1% of final value
• Transient Response Time: 30µs minimum post-load step
• Command Processing: 7ms (Autorange Off), 10ms (Autorange On)
**Measurement Capabilities**
• Resolution: 6½-digit
• Basic Accuracy: 0.012%
• Voltage Measurement Range: 1µV to 21V
• Current Measurement Range: 10pA to 1.055A
• Resistance Range: 100µΩ to 211MΩ
• Input Resistance (Voltage): >10 GΩ
• Speed: 1700 readings/second at 4½ digits via GPIB
**Regulation & Stability**
• Voltage Regulation (Line/Load): 0.01% of range, +100µV load
• Current Regulation (Line/Load): 0.01% of range, +100pA load
• Temperature Coefficient: ±(0.15 × accuracy specification)/°C across 0–18°C and 28–50°C
• Output Noise: 20mV typical into resistive load (10Hz–1MHz p-p)
**Protection & Limits**
• Overvoltage Protection: User-selectable with 5% tolerance
• Current Compliance: Bipolar limit, minimum 0.1% of range
• Voltage Compliance: Bipolar limit, minimum 0.1% of range
• Over-Temperature Protection: Internally sensed, triggers standby
**Sensing & Output Configuration**
• Remote Sense: 2-, 4-, and 6-wire V-source and measure modes
• Floating Output: ±250VDC from chassis ground
## Key Features
• Four-quadrant sourcing and sinking across ±21V @ ±1.05A
• 6½-digit measurement resolution with 0.012% basic accuracy
• 2-, 4-, and 6-wire remote sensing for precision measurements
• Programmable DIO port for handler and prober integration
• GPIB and RS-232 communication interfaces
## Typical Applications
Low-voltage device characterization, battery testing, solar cell evaluation, LED measurements, semiconductor component testing, and materials research requiring precision voltage and current sourcing with simultaneous measurement.
## Compatibility & Integration
Communicates via GPIB and RS-232. Programmable digital I/O enables automation with handlers and probers. Remote sensing eliminates lead-wire effects in precision applications.
