Post by groundg on Feb 19, 2018 23:07:32 GMT -8
Here is somewhat of a noob question:
I want to use your INA3221 voltage/current-sensing board for measuring small currents (0.5 to 200mA) in a solar-powered circuit. It already has shunt resistors (0.1 Ohm) on it.
With these 0.1 Ohm resistors, is the INA3221 sensitive enough to measure said small currents? I'm new to ICs and couldn't find much information on this toppic…
Or do I need to replace the shunt resistors against bigger ones (1 Ohm maybe?)? If so, what size should I use?
Or would I need to make an external circuit with an opamp to measure such small currents?
If so, what design/IC/circuit would you recommend?
I want to use your INA3221 voltage/current-sensing board for measuring small currents (0.5 to 200mA) in a solar-powered circuit. It already has shunt resistors (0.1 Ohm) on it.
With these 0.1 Ohm resistors, is the INA3221 sensitive enough to measure said small currents? I'm new to ICs and couldn't find much information on this toppic…
Or do I need to replace the shunt resistors against bigger ones (1 Ohm maybe?)? If so, what size should I use?
Or would I need to make an external circuit with an opamp to measure such small currents?
If so, what design/IC/circuit would you recommend?
