Two-terminal multiplexable sensor

摘要: An integrated circuit field-to-electrical energy sensor is capable of being energized through two DC voltage supply terminals (18, 20). Each a plurality such sensors, when connected in parallel so as to be from single source, recognizing by means an address code comparator (28) unique pulse signal superimposed on the (VCC). Stimulated that which only sensor, powers up transducer (38), e.g. Hall element, and responds drawing particular current pattern common source indicative presence (or absence) field, magnetic, ambient sensor. Electrically controlled (38) provided present supplied switchable regulated outputs dual regulator (36) having control input output (28). The steady (unswitched) supplies MOS logic including comparator. quiescent drawn line thereby caused very low value becomes increasingly advantageous more sensors are operated same line.