OPI210

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Optoisolators are devices that use optoelectronic components to transfer electrical signals through an isolation barrier without the need for physical connection.

The OPI210 series is a type of optoisolator. It is a high-frequency transimpedance optoisolator, consisting of a photodiode opto-coupler, a driving amplifier, and a transimpedance amplifier. The optoisolator is used to transmit signals across electrical circuits with high impedance isolation. This device can be used to isolate noise, protect against short-circuiting, and provide transient voltage protection.

Application field

OPI210 optoisolators are designed for high-frequency signal transfer (up to 200 MHz), and are used in many industries such as telecommunications, medical equipment, automotive, power systems, process control, and consumer electronics. Some of the specific applications for this device include:

• Isolating signals from noisy environments.
• Providing communication between equipment in a harsh environment.
• Protecting delicate circuits from high voltages.
• Extend the connection length of digital and audio signal transmission.

Working principle

The optoisolator works by transmitting a signal between two isolated circuits using an optical path. The OPI210 optoisolator consists of an LED, an opto-coupler, a driving amplifier, and a transimpedance amplifier. When a voltage is applied across the LED, it produces light that is received by the opto-coupler, which converts the light into an electrical signal. This signal is then amplified by the driving amplifier before being transmitted to the transimpedance amplifier. The transimpedance amplifier converts the signal from a current to a voltage, which can then be transmitted across the isolation barrier.

The optoisolator is designed to provide a high level of isolation, with an isolation voltage of 2.5 kVrms. This helps to reduce noise and prevent the transmission of damaging electrical signals between circuits. It also provides a greater level of protection against transient voltages and has a high speed response time of 1ns.

The OPI210 optoisolator is a reliable and efficient device for signal and data transmission between two isolated circuits. Its high frequency response time and isolation voltage provide an effective solution for many high-frequency applications.

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