ADUM1300CRW-RL

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Digital Isolators

Digital isolators are special type of digital electronic components used to electrically isolate signals from each other. The ADUM1300CRW-RL is an ideal choice for applications requiring both isolation and reliable data transfer between two circuits. This isolated opto-isolator combines an 8-bit receiver with a low-power full-duplex 8-bit transmitter, providing up to 32dB of common-mode noise rejection for digital signal transmission.

Application Field

The ADUM1300CRW-RL is most versatile for digital isolation and signal conversion due to its multiple ports and high isolation voltage ratings. It is suitable for signal conditioning in telecommunication systems, voice/data networks, motor controllers, and CAN bus communication systems. It can be used to bridge two different digital logic levels, for example 5 VCMOS to 3.3V, or vice versa. It can also be used as an isolated interface from the industrial field I/O, to secure the microcontroller’s internal circuitry from the external environment.

Working Principle

The ADUM1300CRW-RL consists of a receiver, a transmitter, and a 8-pin power connector. The receiver works by detecting the input signals and converting them into logic-level signals that can be decoded by the digital logic circuit. The 8-pin power connector provides the power supply to the receiver and transmitter. The transmitter works by receiving the digital logic signal from the microcontroller and converting it into output signals. The 8-pin power connector provides the power supply to the transmitter and output signals.

The optical isolation is achieved through the use of an opto-isolator. The opto-isolator is a device which comprises an LED and an associated photo-diode. The light emitted from the LED is modulated by the incoming digital signals. This modulated light is then transmitted to the receiver via the photo-diode. The intensity of the received light intensity is then detected by the receiver and decoded into digital logic signals. This process ensures that the transmitted signals are electrically isolated from the inputs, preventing interference and signal corruption.

The combination of opto-isolator and 8-pin power connector provides enhanced isolation compared to traditional digital isolators. The isolation voltage rating of the ADUM1300CRW-RL can reach up to 5,000 volts RMS. With such high isolation voltage ratings, the ADUM1300CRW-RL can be used in a wide variety of applications requiring signal conversion and digital isolation.

Conclusion

The ADUM1300CRW-RL is a versatile, reliable digital isolator, suitable for a wide range of signal conversion and digital isolation applications. Its combination of opto-isolator and 8-pin power connector make it unique among digital isolators, providing high isolation voltage rating up to 5,000 volts RMS. This makes it an ideal choice for applications requiring signal conversion and digital isolation.

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