Magnetic field sensor having multiple sensing elements and a programmable misalignment adjustment device for misalignment detection and correction in current sensing and other applications

A sensor comprising:

• an arrangement of two or more magnetic field sensing elements to sense magnetic field associated with a target when the sensor is positioned in proximity to the target, wherein the target is a pair of current conduction paths comprising a first current conduction path carrying a first current and a second current conduction path carrying a second current;
• circuitry, coupled to the arrangement of two or more magnetic field sensing elements, to generate a sensor output signal based on sensing of at least one of the magnetic field sensing elements of the arrangement, wherein the sensor output signal comprises a difference signal indicative of the difference between magnitudes of the first current and the second current;
• a programmable misalignment adjustment device, coupled to the circuitry, to control the circuitry to generate the output signal with compensation for a misalignment between two or more of the magnetic field sensing elements and the target, wherein the programmable misalignment adjustment device is programmed to select measurement of one of the two or more magnetic field sensing elements for generating the sensor output signal when a test of the sensor indicates a misalignment;
• and
• a coil driver and interface logic to interface the circuitry to the coil driver, the interface logic to receive the difference signal from the circuitry and generate an input signal to the coil driver and the coil driver, in response to the input signal, to provide a drive signal to drive a coil of an external trip circuit.