SI2418-B-FTR

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The SI2418-B-FTR is an Electronic Industry Alliance (EIA) approved 10 Mbps RS-485 transceiver. It can handle opto-isolated data rates spanning from 600 bps to 10 Mbps while providing isolation of up to 2kV. This device is designed to provide a fast and easy-to-use method to connect two segments of an RS-485 bus system. Among some of the key features of this product are a wide common mode operating range (1.2V to 5.5V), high ESD protection (±4 kV – HBM), and high noise rejection.

The SI2418-B-FTR has both line driver and receiver outputs, which are combined into a single chip. This eliminates the need for external transceivers or multiplexers. It also eliminates extra power requirements from the host, so the overall system power consumption is reduced. This device is ideal for use in industrial automation, medical diagnostic, communications and data acquisition applications where galvanic isolation between transmission points is required.

The SI2418-B-FTR offers a wide operating temperature range from -20 to +85°C, making it suitable for both commercial and industrial applications. It offers software selectable termination resistors that can give an additional 50% increase in common mode noise rejection, making it suitable for applications with a high degree of EMC susceptibility. It has a number of protections built in that include a short-circuit protection and rise/fall time control.

The combination of features provided by the SI2418-B-FTR makes it an ideal choice for a wide range of applications. It is suitable for use in a variety of areas such as industrial automation, medical diagnostic, communications and data acquisition applications, where galvanic isolation between transmission points is required. It is also suitable for applications in fields such as power line networking and power supply systems.

The working principle of SI2418-B-FTR is as follows. When a logic zero or one is applied to the input, the optical isolator of the chip isolates the logic level from the output, thus providing galvanic isolation between the two point of the bus. The chip then converts the logic zero or one input to the appropriate voltage level for the output with the help of an internal voltage regulator. The chip can then drive the output based on the input. The SI2418-B-FTR is designed to detect any defects in the transmission and reject any interference if present, so that the signals received are error-free.

The SI2418-B-FTR also provides a number of protection features such as an overvoltage protection circuit, an undervoltage protection circuit and an ESD protection circuit. These features provide a high level of protection from any external interference. The chip also has a built-in watchdog timer that monitors the performance of the device and alerts the system if an error has been detected.

The SI2418-B-FTR is a very versatile device that can be used in a variety of applications. It is easy to use and can be integrated into existing systems to provide a reliable, secure and fast connection between two points. The combination of features that the device offers make it an excellent choice for a wide range of applications.

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