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Keithley is a world-leading manufacturer of precision electrical test and measurement equipment, specialising in solutions for semiconductor testing, materials research and electronic characterisation. Its portfolio includes source measurement units (SMUs), digital multimeters, electrometers, picoammeters, data acquisition systems and switching solutions. Trusted by engineers, scientists and researchers worldwide, Keithley instruments deliver exceptional accuracy for low-level measurements and advanced electrical testing applications.
Sub-femtoamp Remote Source Meter
The 6430 Sub-Femtoamp Remote SourceMeter SMU Instrument combines the voltage and current sourcing and measurement functions of Keithley's popular SourceMeter SMU instruments with sensitivity, noise, and input resistance specifications superior to electrometers. This unique combination of broad functionality and exceptional measurement integrity is made possible by the 6430's Remote PreAmp, which offers a very sensitive bi-directional amplifier with sensitive feedback elements for measuring or sourcing currents at the device being tested. The high level signals output by the Remote PreAmp are sent to the controlling mainframe via a twometer cable. This allows the user to make a direct or very short connection to the signal, minimizing the effects of cable noise.
The 6430 makes voltage, current, and resistance measurements at speeds no electrometer can match. It can read up to 2000 source/measure readings per second into internal memory. Currents can be measured in as little as 5 ms on the 100 nA range, decreasing to just a few hundred microseconds on the higher ranges.
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