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Allegro offers linear Hall-effect position sensor ICs that can be used to sense position in DSC applications. These linear ICs are available with micro-power sleep mode for low power consumption required in portable applications. Ultra-small QFN packaging provides a PCB footprint as low as 2 x 3mm. Allegro closed loop sensors are also available for use in cellular phone and small portable camera module actuators. The closed loop Hall sensor, with integrated driver, provides high repeatability in position with low hysteresis. Proprietary self-calibration algorithms compensate for variations in module construction and improve customer end of line yields and actuator reliability in the application.