altKeithley Instruments (Cleveland, OH) has introduced the Model 2657A High Power System SourceMeter® instrument, which offers a highly flexible, four-quadrant voltage and current source/load coupled with precision voltage and current meters. It can source or sink up to 180W of DC power (±3,000V@20mA, ±1500V@120mA). The 6-1/2-digit measurement engine built into this system enables 1fA (femtoamp) current measurement resolution to support low-leakage requirements.

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