ADUM1441ARSZ-RL7

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Digital Isolators

Digital isolators are used to provide galvanic isolation between digital logic circuits while allowing the transfer of digital information between the circuits. Isolation can be achieved either using an opto-coupler type device or using a magnetic field. This article will focus on the ADUM1441ARSZ-RL7 application field and working principle.

Application Fields

ADUM1441ARSZ-RL7 is an advanced quad-channel digital isolator that is designed to isolate two or more component circuits. It is suitable for a wide range of application fields including applications in measurement and control systems, industrial process controllers, embedded systems, avionics, and more. It is especially useful for applications that require high accuracy and/or high-speed data transfer.

Working Principle

ADUM1441ARSZ-RL7 utilizes a digital isolator technology that utilizes a transformer to provide strong isolation between components. The digital isolator consists of an transformer primary and secondary that are optically or magnetically coupled. The transformer primary receives power from a primary side controller, while the secondary coil generates the necessary secondary voltage. The primary and secondary coils are magnetically coupled, allowing for the transmission of data through the transformer. The data is converted into digital signals at the input side and transformed into the appropriate voltage at the output side.

The ADUM1441ARSZ-RL7 digital isolator provides galvanic isolation between the two circuits up to 1,800 Volts, ensuring no electrical connection between the two circuits exists. Four different channels can be used in the isolator giving it a high speed data transfer of up to 18 Mbps. The low power consumption of the isolator provides cost savings while its power consumption allows it to be used in space constrained applications.

In addition to its high speed transfer, the isolator features an ESD protection of up to 8 kV on all channels. This makes it safe to operate even in environments with high static potentials. Furthermore, the isolator also features a low signal loss of only 40 mV, making it ideal for transmitting low-level signals.

Conclusion

The ADUM1441ARSZ-RL7 digital isolator is an advanced quad-channel digital isolator that is designed to isolate two or more component circuits. It is suitable for a wide range of applications including measurement and control systems, industrial process controllers, embedded systems, avionics, and more. The isolator utilizes a transformer to provide strong isolation between the two circuits. It features a high speed data transfer of up to 18 Mbps and ESD protection of up to 8 kV on all channels. In addition, the isolator also features a low signal loss of only 40 mV, making it ideal for transmitting low-level signals.

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