The NMH1000 is a hall effect magnetic field switch. The switch is most sensitive to a vertical field passing through the top-to-bottom surfaces, orthogonal to the plane of the application printed circuit board. The switch operates at low voltage, low current, low output data rate, and is a small physical size. Processing of input consists of functional blocks such as a configurable state machine, analog-to-voltage conversion of the input, and comparison to generate the bi-state output, arranged in linear succession.