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IR light sensor suits limited space apps

Posted: 09 Apr 2010     Print Version  Bookmark and Share

Keywords:IR sensor  light sensor  optoelectronic  CMOS 

OPL611 IR sensor

TT electronics Optek Technology has developed a small surface mount-packaged photo light sensor with a digital output designed for applications with limited space. The OPL611 series surface mount sensors measure just 3mm x 3mm with a height of 1mm, and are mechanically- and spectrally-matched to Optek's OP180, OP200, OP250, OP270 and OP280 series IR LEDs.

The OPL611 series features data rates to 250kBaud and consist of a Photologic chip encapsulated in transparent moulded plastic, providing optical coupling as well as mechanical protection.

"Not only are the Photologic sensors small, robust and economical, but the hysteresis characteristics of the Schmitt trigger on each device gives them exceptionally high noise immunity," said Rodney Bailey, VP of optoelectronic component solutions for Optek Technology. "These design characteristics make the Photologic sensors ideal for use in a variety of sensing applications, including machine automation and safety, assembly line automation, non-contact reflective object and interruptive sensing, as well as end-of-travel, object, and paper sensing."

Available with buffer and inverter 10K internal pull-up as well as open collector outputs, the sensors feature a direct TTL/LSTTL CMOS interface. Minimum input power is 1mW/cm², Vcc ranges from 4.5V to 16V, and operating temperature ranges from -40°C to +85°C.





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