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I am deciding whether a sensor I want to purchase is compatible with my data acquisition system. The input impedance of the daq terminal is 40MOhm. The maximum output of the sensor is 50e-9 Amperes (i.e. 50 nanoAmps). The lowest voltage range for the daq board is +/- 2.5 mV. With a max voltage reading of 2.5 mV and using R=V/i, then the shunt resistor I should use is 50kOhm.
Does this seem to be a reasonable solution to be able to use this sensor with my current daq system, given the shunt resistor I've calculated?
Many thanks for the insight - Mike
Does this seem to be a reasonable solution to be able to use this sensor with my current daq system, given the shunt resistor I've calculated?
Many thanks for the insight - Mike