Increasing the output current to a resistor network using transistors

Ian0

Joined Aug 7, 2020
9,671
The circuit you have is limited to measuring currents less than th op-amp’s maximum output current. With a shunt an an INA180 you can easily measure 500A or more.
Your circuit needs a negative supply and has a negative voltage output.A shunt amplifier has a positive output that is easy for a A/D converter to read and needs no negative supply.
 
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