HCPL-0738-500E

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Optoisolators play a very important role in maintaining the safety of electronic systems by providing galvanic isolation between input and output circuits. One of the most widely used optoisolators is the HCPL-0738-500E from Agilent Technologies. This optoisolator belongs to the family of optoisolators with a logic level output making it suitable for a variety of industrial, consumer, and military applications.

The HCPL-0738-500E is a general purpose optocoupler with a true logic level output. It is an open collector Darlington symmetrical output device with a 70mA output driving capability. It has a dual LED light source and a built-in high speed photodetector for triggering. Its input LED has long term stability and high operating efficiency, while the photodetector offers high speed and low voltage operation. The device has a wide operating temperature range from -40 to +85°C making it suitable for a variety of industrial and military applications.

The basic operation of the HCPL-0738-500E is as follows. When the input signal is applied to the LED, light is generated that is detected by the photodetector. This triggers the output stage, producing a logic level output. The output is active low, meaning that the logic level drops to low when the input voltage is applied. Similarly, when the input voltage is removed, the output signal returns to a high logic level. The output is presented as a logic level output, meaning that the output is either high or low and nothing in between. This makes it suitable for simple logic level switching.

The HCPL-0738-500E is a very versatile optoisolator that has found widespread application in a variety of industrial, consumer, and military applications. It is most commonly used to providelogic level isolation, or to drive a low voltage switch. It can also be used as an IR emission and detection system, where the input voltage is used to drive the LED and detect the light emitted by the LED. This can be used in automatic door openers, to detect the presence of an object, or even to detect a person.

The HCPL-0738-500E is a very useful optoisolator for a variety of applications. Its ability to provide galvanic isolation, along with its true logic output, makes it a versatile and cost-effective solution for a variety of needs. Its wide operating temperature range and 70 mA output current make it suitable for industrial, consumer, and military applications, while its logic level output makes it ideal for simple logic level switching. Whether you need to provide logic level isolation, or drive low voltage switches, the HCPL-0738-500E is a great choice.

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