SI8462AA-A-IS1

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Digital isolators are electronic components that are used to maintain electrical isolation between systems. The SI8462AA-A-IS1 is a high voltage digital isolator with a 20 kVdc dielectric strength rating, providing galvanic isolation between two circuits. It is based on a monolithic CMOS isolator for low power consumption, and its digital state is maintained and retained over an extended temperature range.

Application Field

The SI8462AA-A-IS1 digital isolator is widely used, including in medical systems, industrial and communication systems, as well as many other applications that require reliable isolation. In medical systems, it is utilized in data transmission, sensor interface, and in electrical isolation of circuits and systems. In industrial and communication systems, it is used for analog isolation, signal transmission, LED fault detection, power management, and display control. It is also commonly used in automotive and aerospace systems for power conversion, sensing applications, and signal transmission.

Working Principle

The SI8462AA-A-IS1 uses a monolithic CMOS isolation product, meaning both the transmitting and receiving portions of the device are built into a single component. This provides two independent electrical paths through the system, one for power and one for signal. The power path consists of an isolated DC/DC converter that provides a regulated power supply to the embedded signal elements. The signal path includes a digital input stage, a dielectric isolation element, a galvanic isolation element, and finally a digital output stage. This allows for data to be transmitted from one system to the other without the risk of interference.

The isolation element is based on IsoLoop® technology, which is a patented, high voltage, monolithic CMOS-based isolation product with low power consumption. It provides up to 20kVdc of isolation, allowing for data to be transmitted over long distances without the risk of interference. The device also features built-in fail-safe protection and level shifting, allowing for data transmission even in low voltage environments.

The data transmission rate is up to 30 Mbps, depending on the application. The device also features low power consumption, with a maximum current rating of 40 mA, making it suitable for battery-powered applications. It also has an extended temperature range, so it can be used in both hot and cold environments.

The SI8462AA-A-IS1 provides a reliable means of data transmission between two systems with no risk of interference. It is suitable for a wide range of applications, including medical, industrial, and communication systems, and its low power consumption and extended temperature range make it suitable for a broad range of operating environments.

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