4N26-X016

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Optoisolators, also known as opto-isolators or optical isolators, are used to provide electrical isolation between two ports. The Optoisolator 4N26-X016 is an example of a transistor-photovoltaic optocoupler, which can provide galvanic isolation between two circuits.

Application Field

The 4N26-X016 optoisolator is designed primarily for applications that require digital isolation. It provides an interface between digital and analog signal circuits, providing a digital output that can be isolated from the analog signals. It is particularly used in high-frequency applications where the optoisolator’s bandwidth can provide faster switching speed and response time. This optoisolator is also ideal for applications where multiple channels of optical isolation are required (e.g. serial and parallel data transmission).

Working Principle

The 4N26-X016 optoisolator is a single-channel optocoupler constructed with a photodiode, an LED, and a transistor output. The optocoupler works by having an LED emit infrared light that is modulated by the input signal. The light signal is detected by the photodiode which generates a corresponding electrical signal. This signal is amplified and amplified by a Darlington transistor, which then provides an isolated output and galvanic insulation.

The 4N26-X016 optoisolator also has a low input-to-output capacitance, which reduces cross-talk and ensures high reliability. The optocoupler has an operating temperature range of -40°C to +85°C, making it suitable for demanding applications in harsh industrial and outdoor environments. The device is typically available in a 4-pin Dual-In-Line (DIP) format with output currents up to 50 mA.

In summary, the 4N26-X016 optoisolator is a reliable digital optocoupler that provides a robust, isolated interface between digital and analog signal circuits. The optoisolator is designed for digital signal processing applications requiring digital isolation, high speed, and low capacitance. It can operate over a wide temperature range, making it suitable for a variety of industrial and outdoor applications.

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