The Model 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 Model 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 two-meter cable. This
allows the user to make a direct or very short connection to the signal,
minimizing the effects of cable noise
0.4fA p-p (4E - 16A) noise (typical)
Remote PreAmp can be located at the signal source to minimize
cable noise
>1016Ω input resistance on voltage measurements
High speed - up to 2000 readings/second
Up to 6½-digit resolution
Fast characterization of components with programmable digital I/O
and interfaces
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