Keithley Instruments today introduced the Model 2651A High Power System SourceMeter instrument, the latest addition to it's Series 2600A System SourceMeter family. Designed for characterising high power electronics, the instrument provides a wide current range which is critical for a variety of R&D, reliability, and production test applications.
The instrument offers a 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 characterisation 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 synchronised system via Keithley's TSP-Link technology. The instrument can source or sink up to 2,000W of pulsed power (±40V, ±50A) or 200W of DC power (±10V@±20A, ±20V@±10A, ±40V@±5A). It can also make precise measurements of signals as low as 1pA and 100 microvolts at speeds up to one microsecond per reading.
It provides a choice of digitising or integrating measurement modes for precise characterisation of both transient and steady-state behaviour. Two independent analogue-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 digitising measurement mode's 18-bit A/D converters allow capturing up to one million readings per second for continuous one-microsecond-per-point sampling. The integrating measurement mode, based on 22-bit A/D converters, optimises the instrument's operation for applications that demand the highest possible measurement accuracy and resolution.
Connecting two Model 2651A units in parallel via TSP-Link expands the system's current range from 50A to 100A. The voltage range can be expanded from 40V to 80V when two units are connected in series.
