The SFH 7770 digital sensor from Osram Opto Semiconductors combines the functions of a digital ambient light sensor with those of a digital proximity sensor. It determines the ambient brightness, detects the presence of an object nearby, and can tell whether the object is moving closer or farther away. Applications in cell phones and smart phones can be controlled without touching the phone. The applications open automatically, and the brightness and volume are adjusted at precisely the right moment. The digital sensor replaces the usual separate ambient light and proximity sensors and takes up very little space, measuring 2.8 x 2.8 x 0.9 mm. By combining the two functions, it offers added performance. It consumes 350 μA during operation and 5 μA in standby mode.