IL711S-1E

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Digital isolators are electronic components used to transmite electrical signals between two electronic circuits, which are coupled optically so that they remain electrically isolated. Digital isolators are essential for safety as they protect the interfaces between two circuits, both preventing noise and interference coming from one circuit from entering another circuit. The IL711S-1E is one such digital isolator, which offers high performance, isolation, and robustness while providing a compact form factor.

Application Field

The IL711S-1E is used in a wide variety of applications, including industrial automation, medical systems, factory automation, and renewable energy systems. With a 5 kVrms isolation rating, the circuit provides a wide margin of safety for the devices it is coupled with. Additionally, the IL711S-1E offers high EDM tolerances up to +/-6.5kV for long lasting performance even in extreme conditions. Furthermore, the optically-coupled pair features a low feed-through voltage to reduce the possibility of EMI and noise issues. The optical interface also provides noise immunity with less cross-talk compared to other isolators.

Working Principle

The IL711S-1E digital isolator works by optically isolating two circuits, making use of the LED and integrated photodiode. The LED is the source of light which transmits the digital signal from the input side to the photodiode on the other side. The photodiode on the output side then converts the signal from light into electricity, and the output circuit is then enabled. This ensures that the two circuits are completely isolated.

To ensure the reliable and robust operation of the IL711S-1E, the low input current and ultra-low supply current on the input side and the low output impedance and low leakage current on the output side are especially critical in any application. Moreover, the robust common mode transient immunity (CMTI) rating of the IL711S-1E ensures that the data is never corrupted in electrically noisy environments.

The IL711S-1E is designed to meet the particular needs of industrial, medical, and factory automation applications. Its low power consumption, reliable operation, robustness, and isolation ensure that it is the best choice for any of these applications.

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