OPI127-032

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The OPI127-032 optoisolators, belonging to the logic output type, offer high reliability in applications such as I/O isolation, power supply isolation, and fiber optic link isolaion. The devices\' logic output combines an optically coupled, low power, low voltage LED with a complementary output MOSFET. The OPI127-032 optoisolator is typically used to provide an electrical isolation barrier between two circuits operating at different voltage levels due to electrical noise immunity.

Application Field

The OPI127-032 optoisolators provide a basic device for steady state protection for the components of communication systems. They are also used in electromechanical loads such as PLC and solenoid valves. With their isolated voltage loop, they are suited for data communications, Fiber Optic Data Links, automotive networks, and precision systems as well. The type of circuit isolation provided by the OPI127-032 optoisolator is very precise, which leads to an added level of protection not achieved with non-isolated circuits. This isolation also helps to improve signal integrity in high-speed communication applications, as the isolation provided prevents unwanted interference from the system.

Working Principle

The working principle of the OPI127-032 optoisolator involves the use of an optocoupler, which is comprised of a LED and a MOSFET. The LED is optically coupled with the MOSFET, such that light illuminated from the LED is directed to the photodiode. The light transfer enables current to flow through the MOSFET gate, and this connection serves as a switch between the circuit’s two states.

The LED operates at a lower voltage than the MOSFET, and when a signal is transferred from one side of the circuit to the other, the LED is illuminated by the current. This illumination then acts as a signal to the photodiode, causing it to conduct current from the gate of the MOSFET. This ultimately enables the current to pass from one side of the circuit to the other. The OPI127-032 optoisolator thus offers a fast response time, as well as an isolated solution that can support a range of different applications.

The OPI127-032 optoisolator also offers very low voltage operation, meaning it has the capability to operate with up to 6-7V DC input. In addition, the optoisolator has a high temperature coefficient, allowing it to remain operational within a large temperature range. This further helps to maintain accuracy and stability of the circuit, even when subject to drastic temperature changes. These features make the OPI127-032 optoisolator an ideal choice for applications that operate under extreme conditions.

To summarize, the OPI127-032 optoisolator, belonging to the category of logic output type, is an ideal solution for providing a level of protection from interference, as well as maintaining signal integrity in high-speed communication applications. The device provides an electrical isolation barrier to prevent current from passing from one side of the circuit to the other, and its low voltage operation and high temperature coefficient allow it to remain operational within a wide temperature range.

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