Current sensor

A current sensor comprising:

• a conductive member through which a current to be measured flows;
• a first magnetic sensor and a second magnetic sensor which output output signals having reversed phases to each other due to an induction magnetic field from the current to be measured;
• and
• a differential unit which performs differential operation on the output signal of the first magnetic sensor and the output signal of the second magnetic sensor,
• wherein sensing axis directions of the first magnetic sensor and the second magnetic sensor are fixed in the same direction, form a predetermined angle with respect to an application direction of the induction magnetic field from the current to be measured applied to the first magnetic sensor and the second magnetic sensor, and are fixed so that the induction magnetic fields are applied to the first magnetic sensor and the second magnetic sensor in reverse directions to each other,
• a substrate having the first magnetic sensor disposed on one surface and the second magnetic sensor disposed on the other surface is included,
• the conductive member forms a shape having a longitudinal direction and a lateral direction in a cross-sectional view, and
• the substrate is disposed to be parallel to the conductive member in the longitudinal direction so that an in-plane direction of the substrate and the longitudinal direction are substantially parallel to each other.