Features * 1.65 to 3.5 V battery operation * Low supply current * High sensitivity, BOP typically 30 G (3.0 mT) * Operation with either north or south pole * Configurable unipolar or omnipolar magnetic sensing * Complementary, push-pull outputs * Chopper stabilized Superior temperature stability Extremely low switchpoint drift Insensitive to physical stress * Solid state reliability * Small size The A1171 integrated circuit is an ultrasensitive, Hall effect switch with latched digital outputs and either unipolar or omnipolar magnetic actuation. It features operation at low supply currents and voltages, making it ideal for battery-operated electronics. The low operating supply voltage, 1.65 to 3.5 V, and unique clocking algorithm assist in reducing the average operating power consumption. For example, the power requirement is less than 15 µW with a 2.75 V supply.