OPL821

Series:	Photologic®
Part Status:	Obsolete
Wavelength:	935nm
Type:	Photo Detector, Logic Output
Output Type:	Push-Pull
Package / Case:	TO-18 small
Operating Temperature:	-40°C ~ 100°C (TA)

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Introduction

Optical Sensors - Photo Detectors - Logic Output (OPL821) is a logic output photo detector that provides an array of distinct features for systems where speed and accuracy are of great importance. This article will discuss the application field and working principle of the OPL821.

Application Field

The OPL821 is mainly used in industrial and military applications, as well as the medical, automotive, and aerospace industries. It is highly beneficial in a variety of industries as it effectively detects infrared (IR) radiation from a range of 0.5 to 10 microns, providing a logic level output. The OPL821 can detect a variety of objects due to its broad field of view, and its adaptedrange of temperature. Its ability to detect at long distances improves its effectiveness, allowing it to detect objects from up to 30mm away. This enhances its reliability in a variety of applications. The OPL821 is also suitable for use in harsh environments due to its robustness and high immunity to vibrations. This means it can be reliably used in extreme temperatures without degrading its performance. Furthermore, Its response time is very fast, making it suitable for applications that require quick response times.

Working Principle

The OPL821 works by detecting infrared radiation and providing a logic level output. It consists of a sensor unit that consists of a silicon photodiode and an integrated circuit (IC) amplifier. The silicon photodiode receives the incoming IR radiation and sends its output to the IC amplifier. This IC amplifier further amplifies the signal and is then connected to the receiver unit. The receiver unit then converts the signal into a low, high or intermediate logic level output. The temperature range of the OPL821 can be adjusted, allowing it to operate in temperatures of up to 50°C. This makes it applicable for a wide range of applications.

Conclusion

In summary, the OPL821 is a highly effective infrared radiation detector that provides a logic level output. It is mainly used in industrial and military applications, as well as in the medical, automotive, and aerospace industries. Its high immunity to vibrations, fast response time, and broad field of view make it a useful tool in a variety of applications. The working principle of the OPL821 involves a silicon photodiode and an IC amplifier that converts incoming IR radiation into a logic level output. The OPL821 is thus a highly advantageous device for detecting objects from a distance.

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