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Introduction

Digital Isolators are devices that transfer digital signals, data, power, and other electrical signals across two isolated circuits. They are widely used in a variety of electronic and communication systems, ranging from isolated robot systems to large industrial machines and medical equipment, where isolation of circuits is critical to ensuring reliable operation. The ADUM1300WSRWZ53-RL Digital Isolator is designed to provide bidirectional signaling and data transfer between two isolation circuits. This isolator features a single-contact design, a low power consumption of up to 500 mW, wide common-mode range of up to 30kV/μs common-mode transient immunity, and fast data rates of up to 400 Mbps.

Application Field

The ADUM1300WSRWZ53-RL isolator is designed to provide guaranteed isolation between two branches of a power system. The isolator is particularly well suited to industrial control applications with limited space requirements and high-speed signaling including up to 400 Mbps over short distances. Typical applications include data transmission between isolated power supplies, medical equipment, industrial PCs, fieldbus systems, control equipment, and serial communications.

Working Principle

The ADUM1300WSRWZ53-RL Digital Isolator utilizes digital signal processing (DSP) to transfer data between two isolated circuits. The isolator operates by converting the digital signals into RF signals, which are then transmitted across the isolation barrier. The RF signal is then converted back into the digital signal on the other side of the barrier.

The isolator provides two-way communication and data transfer, and is capable of transferring data up to 400 Mbps. The signal is transferred using a two-wire differential bus, which enables the signals to remain completely isolated from each other. The digital signal processing greatly increases the immunity of the digital signals to electromagnetic interference (EMI), providing reliable data transfer in electrically noisy environments.

Conclusion

The ADUM1300WSRWZ53-RL Digital Isolator is designed to provide reliable, bidirectional, digital signal and power transfer between two isolated circuits. The isolator’s unique two-wire connection and digital signal processing provide fast data transfer rates and improved immunity to electromagnetic interference, making it an ideal choice for industrial and medical applications with limited space and high-speed requirements. The isolator also features a low power consumption and wide common-mode range of up to 30kV/μs common-mode transient immunity.

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