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Digital Isolators

ADUM1402WTRWZ35-RL is a digital isolator used to bidirectionally and galvanically transfer digital signals between two channels with varying signal levels while working with a low power. This product features a kit of isolated gate driver components and a logic signal transmission section with effective isolation of signal transmission protected from noise and interferential voltage.

Application Field

ADUM1402WTRWZ35-RL is widely used in telecom infrastructure, automation and control, medical equipment, industrial instrumentation, lighting and a variety of embedded applications. These digital isolators offer a complete isolation solution perfect for digital interface applications with a high level of simple electrically isolated signal transmission performance.

Working Principle

A digital isolator works by utilizing a near zero voltage gap between the logic circuit and the isolation barrier. It isolates power and data signals from two different systems with varying signal levels and ensures a controlled and predictable level of electrostatic isolation between the two circuits. The input signal is received and optically modulated, then transmitted across the isolation barrier and converted back to an electrical signal on the output side.

ADUM1402WTRWZ35-RL is equipped with two small packages; the digital isolator and the gate driver complete the whole system. The digital isolator receives the input signal, optically differentiate the signal’s logic level at the transmitter, then transmits it to the receiver. The receiver then optically recover the signal’s logic level, finally outputting it to the corresponding system. The gate driver then directly drives the optoelectronic devices within a chosen range.

ADUM1402WTRWZ35-RL offers superior noise immunity due to synchronization of the signal’s logic level across the isolation barrier. This provides a reliable signal transmission with maximum electromagnetic compatibility (EMC). Also, the input/output coupling capacitance is low, which helps reduce the amount of power needed for communication.

Conclusion

ADUM1402WTRWZ35-RL is a reliable and comprehensive digital isolator that aids in ensuring accurate data transmission across an isolated barrier. The kit of components and signal transmission section provide a high level of isolation with integrated signal synchronization that helps reduce hazardous electromagnetic radiation. This digital isolator is suitable for a wide range of applications, including telecoms, automation, medical equipment, industrial instrumentation, and lighting.

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