Keithley 6430
Sub Femtoamp Remote SourceMeters
Description
This Sub Femtoamp Remote SourceMeter combines the voltage and current sourcing and measurement functions of Keithley's popular SourceMeter and Source Measure Unit (SMU) products 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 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.
Key Points
0.4fA pp (4E-16A) noise
Remote PreAmp can be located at the signal source to minimize cable noise
>10 to the 16th Ohms input resistance on voltage measurements
High speed up to 2000 readings/second
Up to 61/2 digit resolution
Fast characterization of components with programmable digital I/O and interfaces
Specifications
Input resistance: >1016Ω
Noise: 0.4fA pp
High speed: Up to 2000 readings/second
Digit resolution: Up to 6 1/2
