Current sensing of 24V DC motor for 3.3v MCU

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Joined Dec 23, 2010
I am trying to measure current flowing into 24V 120W DC motor using MAX4372.
I have done this with 12V at about 1~2A motor and works as described in the datasheet however the same circuit does not work for 24V circuit.
This is the circuit I used for my 24V DC motor driver.

M1_CURR pin is directly connected to STM32 MCU's analog pin.
The motor works just fine and can hold the position well but the analog reading does not change at 0 reading.
Per VCC input to MAX4372, datasheet only says VCC from 2.7V to 28V is valid.
Any suggestion would be much appreciated.