Opto-Electronics


Reflective sensor immune to ambient light

15 November 2017 Opto-Electronics

The OPB9000 from TT Electronics is a reflective, CMOS logic output sensor with programmable sensitivity, output polarity, and drain select. The sensor features 25+ kilolux ambient light immunity along with a wide operating temperature range. Factory calibrated to offer plug and play detection, it can be re-calibrated in a matter of milliseconds with a single command for specific application requirements. This self-calibration feature eliminates the need to constantly recalibrate as the LED ages, saving valuable time and effort.

Temperature compensation and automatic gain control features enable it to function reliably in the most demanding and dynamic environmental conditions where consistent performance from sensor devices is critical. The 6 μs response time ensures high-speed detection for time-critical applications.

The OPB9000 eliminates circuit complexity and reduces board space requirements by up to 80% with its fully integrated analog front end and digital interface. It combines an infrared emitter and integrated logic sensor in a miniature 4,0 x 2,2 x 1,5 mm surface-mount package.

The OPB9000 removes the need for peripheral circuitry like op-amps, data converters and comparators, as all analog signal conditioning is integrated in the IC. The sensor is suitable for a variety of applications including industrial printing, dispensing, manufacturing automation, safety and security devices, and portable lab/medical equipment.



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