Magnetoresistive sensor for measuring a magnetic field

A magnetoresistive sensor, comprising

• A substrate in the X-Y plane, wherein the X and Y axes are perpendicular;
• A plurality of magnetoresistive sensor elements in the XY plane electrically interconnected to form two or four magnetoresistive sensor arms, wherein at least one magnetoresistive sensor arm senses a magnetic field along the Y-axis, said magnetoresistive sensor elements are TMR or GMR sensor elements;
• Said sensor arm contain magnetoresistive sensor elements that have a long dimension parallel to the Y-axis and the shorter width direction parallel to the X-axis;
• At least one pair of elongated permanent magnet bars on the substrate with long axis parallel to the Y-axis and tilted by an angle between 0 and 90 degrees in order to generate a bias magnetic field with at least a component along the X-axis, Hcross, that is slightly greater than Hk, and a component along Y-axis that has a magnitude equal to or less than the Ho of the sensor element;
• wire bond pads on the substrate are electrically interconnected to each side of the sensing arms;
• and
• said magnetoresistive sensor arms are electrically interconnected in order to form a sensor bridge.