Magnetic sensor device and magnetic sensor system

A magnetic sensor device comprising:

• a first chip including a first magnetic sensor,
• a second chip including a second magnetic sensor and a third magnetic sensor, and
• a support having a reference plane, wherein
• the first magnetic sensor includes at least one first magnetic detection element and detects a first component of an external magnetic field, and the first component is a component of the external magnetic field in a first direction,
• the second magnetic sensor includes at least one second magnetic detection element and detects a second component of the external magnetic field, and the second component is a component of the external magnetic field in a second direction,
• the third magnetic sensor includes at least one third magnetic detection element and detects a third component of the external magnetic field, and the third component is a component of the external magnetic field in a third direction,
• the first direction, the second direction, and the third direction are mutually different directions,
• the first chip and the second chip are mounted on the reference plane,
• each of the first chip and the second chip has a planar shape that is longer in a direction, when viewed from the direction perpendicular to the reference plane,
• the first chip has a plurality of first pads disposed in a vicinity of both ends of the first chip in a longitudinal direction of the first chip, and
• the second chip has a plurality of second pads disposed in a vicinity of both ends of the second chip in a longitudinal direction of the second chip.

A magnetic sensor device comprising:

• a first chip including a first magnetic sensor,
• a second chip including a second magnetic sensor and a third magnetic sensor, and
• a support having a reference plane, wherein
• the first magnetic sensor includes at least one first magnetic detection element and detects a first component of an external magnetic field, and the first component is a component of the external magnetic field in a first direction,
• the second magnetic sensor includes at least one second magnetic detection element and detects a second component of the external magnetic field, and the second component is a component of the external magnetic field in a second direction,
• the third magnetic sensor includes at least one third magnetic detection element and detects a third component of the external magnetic field, and the third component is a component of the external magnetic field in a third direction,
• the first direction, the second direction, and the third direction are mutually different directions,
• the first chip and the second chip are mounted on the reference plane, and
• each of the first chip and the second chip has a shape long in a direction orthogonal to a direction of alignment of the first chip and the second chip, when viewed from the direction perpendicular to the reference plane.