Other Parts Discussed in Thread: LMP91000, LMP7721
Hi, since LMP91000 can read currents in the order of of 100 pA up to 750 uA. And the application I'm working on requires a sensitivity in the order of 0.5 pA / ppb, that is I need to measure a current of 0.05 pA for the lowest concentration possible.
This low current is under the LMP91000 range, so I wonder if I can connect a LMP7721 in series with the WE electrode to preamplify this current and the allow the LMP91000 to capture this current. In the event a larger current occurs I would need to disconnect LMP7721...
I still need the LMP91000 for larger concentrations.
Thank you very much.
Regards,
Alejandro