ADUM130D1BRWZ

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Digital isolators are a type of safety device used to protect sensitive circuits against transient voltage spikes, provide electrostatic discharge protection, and transfer digital signals between two circuits while maintaining galvanic isolation. ADUM130D1BRWZ is a high power optically isolated unidirectional digital isolator that is used to transfer digital signals across an isolation barrier with two separated power domains.

The ADUM130D1BRWZ consists of a gallium nitride blue laser with near-infrared detector for receive and transmit circuits, along with opto-isolator electronics. The laser beam is modulated with digital signals in order to transfer data and commands across the isolation barrier. Due to the high switching speed and low power consumption, the ADUM130D1BRWZ has a wide range of applications, including isolated unidirectional communication, electronic circuit protection, and isolating two parts of the power supply, providing system safety for industrial automation, medical equipment, instrumentation, motor drivers, power electronics, and motion control.

Working principle: The high speed digital isolator ADUM130D1BRWZ consist of an optically isolated transmit circuit and receiver circuit. In the transmitter, the laser diode uses a gallium nitride blue laser which is modulated by a digital signal and then it is transmitted to the receiver through the light guide. The receiver is equipped with a near-infrared detector which converts the optical signal into an electrical signal with the help of the integrated photoelectronic amplifier circuit. This signal is then amplified and transferred as a logic level output. The laser detector is used for long-distance transmission, and the electrical coupling is used to provide galvanic isolation. Since the laser and the receiver are separated by an insulation barrier, the signal passes through an opto-isolator, providing a low-noise, high-speed electrical isolation.

In summary, ADUM130D1BRWZ application field and working principle of the industrial digital optocoupler optically isolated unidirectional digital isolator is that it is used to transfer isolated digital signals between two circuits while providing electrostatic protection and galvanic isolation. The blue laser and near infrared detector technology is used to modulate and demodulate the signal, providing high speed communication between the two circuits with noise reduction and system safety.

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