Hello,
I'm looking to measure the specimen current resulting from a scanning electron microscope beam sweeping over a sample.
I expect to see currents for 1 - 300 picoamp. I would like the unit to be able to be ranged in 100 picoamp, that is 0 -100, 0-200, 0-300 Picoamps.
I would like the output to be something like 0-5 volt for a given range.
my question: is the LMP7721 Multi-Function Evaluation Board suitable for a configuration as described above?
Any suggestions as to how I might achieve my goals?
Thank you
Andre