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SourceMeter til karakterisering af effektelektronik

Keithley introducerer system SourceMeter, der er optimeret til high power halvledertest (in english).

Keithley Instruments introduces the Model 2651A High Power System SourceMeter instrument, the latest addition to the company’s Series 2600A System SourceMeter family.

Specifically designed for characterizing high power electronics, the Model 2651A provides the widest current range available in the industry. This range is critical for a variety of R&D, reliability, and production test applications, such as testing high brightness LEDs (HBLEDs), power semiconductors, DC-DC converters, batteries, and other high power materials, components, modules, and subassemblies.


Like each member of the Series 2600A family, the Model 2651A offers a highly flexible, four-quadrant voltage and current source/load coupled with precision voltage and current meters.

It combines the functionality of multiple instruments in a single full-rack enclosure: semiconductor characterization instrument, precision power supply, true current source, DMM, arbitrary waveform generator, V or I pulse generator, electronic load, and trigger controller, and is fully expandable into a multi-channel, tightly synchronized system via Keithley’s TSP-Link technology.

Unlike competitive solutions, which typically have limited power, measurement speed, and/or resolution, the Model 2651A can source or sink up to 2,000W of pulsed power (±40V, ±50A) or 200W of DC power It can also make precise measurements of signals as low as 1pA and 100 microvolts at speeds up to one microsecond per reading.

Two measurement modes

The Model 2651A provides a choice of digitizing or integrating measurement modes for precise characterization of both transient and steady-state behavior. Two independent analog-to-digital (A/D) converters define each mode - one for current and the other for voltage - which run simultaneously for accurate source readback without sacrificing test throughput.

The digitizing measurement mode’s 18-bit A/D converters allow capturing up to one million readings per second for continuous one-microsecond-per-point sampling, making this mode the most appropriate choice for waveform capture and measuring transient characteristics with high precision.

Competing solutions must average multiple readings to produce a measurement result and often don’t allow the measurement of transient behavior. The integrating measurement mode, based on 22-bit A/D converters, optimizes the instrument’s
operation for applications that demand the highest possible measurement accuracy and resolution. This ensures precise measurements of the very low currents and voltages common in next-generation devices.

All Series 2600A instruments provide integrating measurement mode operation.

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