Bipolar Source Measure Unit for Pulsed Device and Low-Resistance Testing
The ADCMT 6240B combines high-speed pulsed voltage and current sourcing with 5½-digit measurement and precision low-resistance testing in one bipolar source measure unit.
The 6240B provides DC voltage output up to ±15 V at ±1 A and pulsed current up to ±4 A at ±10 V. Its 50 μs minimum pulse width supports device characterization while reducing measurement errors caused by DUT self-heating.
±15 V / ±1 A
DC bipolar source and sink operation
±4 A Pulse
Source or sink for pulses up to 20 ms
50 μs
Minimum pulse width with 1 μs resolution
0.25 μΩ
Minimum resistance measurement resolution
Four sweep types—fixed, linear, random, and two-slope linear—support semiconductor and electronic component characterization. Separate HI and LO limiter settings help protect batteries, capacitors, laser diodes, and other devices that are sensitive to over-discharge or reverse voltage.
The integrated low-resistance measurement function can cancel thermal electromotive force generated at metal contact surfaces, supporting precise testing of connectors, conductive materials, wire harnesses, and shunt resistors.
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Bipolar Source and Sink Operation
Source or sink positive and negative voltage and current, including 0 V sink operation for battery and power-device evaluation.
High-Current Pulse Output
Generate or sink pulse current up to ±4 A for a maximum pulse width of 20 ms and duty cycle of 20% or less.
Flexible Source and Sweep Modes
Select DC, pulse, DC sweep, or pulse sweep operation with fixed, linear, random, and two-slope linear sweep types.
Independent HI/LO Limiters
Configure HI and LO limiters independently to control charging and discharging limits and protect voltage-sensitive devices.
Thermal EMF Cancellation
Reverse current polarity and cancel thermal electromotive force for precision contact-resistance and low-resistance measurement.
Suspend Function
Select STBY, HiZ, or LoZ output-off states to reduce relay operation, improve throughput, and limit transient current when connecting batteries.
Semiconductor and electronic component characterization
Diode and LED forward-voltage testing
Battery charge and discharge testing
Power-device and power-IC evaluation
Connector contact-resistance measurement
Wire-harness resistance testing
Conductive material and shunt-resistor measurement
Automated production-line characteristic testing
6240B Specifications
| Source Resolution | 4½ digits |
|---|---|
| Output Method | Bipolar source and sink |
| Maximum DC Output | ±15 V / ±1 A |
| Maximum Pulse Output | ±10 V / ±4 A |
| Maximum ±4 A Pulse Width | 20 ms at 20% duty cycle or less |
| Minimum Source Resolution — Voltage | 10 μV |
| Minimum Source Resolution — Current | 1 nA |
| Measurement Resolution | 5½ digits, maximum ±319,999 counts |
| Basic Source and Measurement Accuracy | ±0.02%, representative range |
| Minimum Measurement Resolution — Voltage | 1 μV |
| Minimum Measurement Resolution — Current | 100 pA |
| Resistance Measurement | Up to 0.75 GΩ |
| Minimum Resistance Resolution | 0.25 μΩ |
| Minimum Pulse Width | 50 μs with 1 μs setting resolution |
| Minimum Pulse Cycle | 2 ms with measurement 500 μs without measurement |
| Source Modes | DC, pulse, DC sweep, pulse sweep |
| Sweep Types | Fixed, linear, random, two-slope linear |
| Interfaces | USB, GPIB |
