Diode's AH1806 and AH1808 are high-sensitivity, micropower, omnipolar Hall-effect switch ICs, specifically designed for portable and battery-powered equipment such as portable PC's, cellphones, and camcorders. Based on two high-sensitivity Hall-effect plates and chopper-stabilized architecture, the AH1806 and AH1808 provide a reliable solution over the whole operating range. The high-sensitivity Hall-effect switches have been optimized to operate over the supply range of 2.5 V to 3.6 V and use a micropower sleep function to give an average supply current of only 8 μA. The AH1806 and AH1808 have open-drain output for flexibility. They are packaged in a small, low-profile SOT553 and industry-standard SC59 packages.