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Hall Sensor Amplifier Optimizes Sensitivity vs Supply Current

Hall Sensor Amplifier Optimizes Sensitivity vs Supply Current

Voltage across HALL-ELEMENT bridge is reduced to minimize bridge current from 2.5mA or 230µA then a dual LT6011 DC precision low current low drift and Vos OP AMP is used in an instrumentation AMP configuration at a gain of 101 to give a sensitivity of 40mV/mT.