Dual-Channel

The MAX40201F is available in various gain configurations; this project employs the MAX40201F with a gain (G) of 50V/V. With a 0.05 Ohm shunt resistor, the output is 2.5V for a 1A current flow (1A/2.5V). Higher current measurements can be achieved by using a lower-value shunt resistor or by selecting a MAX40201 chip with a lower gain. The input common-mode range is 0V to 76V.