MAX14939GWE+

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Digital isolators are one of the most important pieces of in IoT devices today. In this article we will discuss the MAX14939GWE+ application field and working principle in making IoT devices more secure and stable.

The MAX14939GWE+ is a dual-channel digital isolator from Maxim Integrated that provides complete isolation and robust performance for IoT device functions. This digital isolator takes the form of a 14-pin QFN package. The MAX14939GWE+ supports multiple communication protocols, including I2C, SPI, GPIO, and UART. With two separate isolated channels, it allows for easy transfer of data between two sides of the system with no electrical contact.

The MAX14939GWE+ offers data rate up to 5 Mbps and transient voltage suppressor protection of up to 500V, making it an ideal choice for data exchange between the circuit board and the external sensor in harsh environments. With an operating temperature range of -40°C to 85°C, it can operate in a wide temperature range and environment.

In addition to its digital isolation functionality, the MAX14939GWE+ also offers built-in power supply noise immunity protection, further improving the reliability of your device. It includes integrated power supply noise rejection circuitry that eliminates voltage dips and glitches due to EMC/EMI. This ensures reliable connections between two sides of the system in noisy environments.

The MAX14939GWE+ also offers high common mode rejection (CMR) of up to 200 V/μs, which helps to reduce noise and interference across the board. This means that digital signals can be digitally isolated, while still allowing system-level communication. The built-in surge and ESD protection make sure that the digital isolator will stay safe and protect the rest of the system from any possible electrical damage.

The MAX14939GWE+ makes it easy to securely transfer data between separate sections of your IoT device. It allows for low power consumption, while maintaining high reliability and signal integrity. It is the perfect choice for industrial and automotive applications with harsh environmental conditions. The high CMR and ESD protection make it a great choice for data transfer in noisy and harsh environments, ensuring reliable connections between two sides of the system.

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