Lauded as the world’s smallest dual output omni-polar Hall effect switch IC, the AH1891 measures 0.8 mm x 0.8 mm x 0.5 mm in a CSP. It operates over a supply range 1.8V to 3.3V and features a sleep function that ensures an average current consumption of 7 µA. Additionally, integrated pull-up resistors simplify external circuitry. Other features include an operating temperature range from -40ºC to 85ºC. Price for the AH1891 is $0.20 each/10,000. DIODES INC., Dallas, TX. (972) 385-2810.