ADUM5211ARSZ

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Digital isolators are semiconductor-based isolators which can provide galvanic isolation between two or more signal paths. They are mainly used for isolating data and power between two electric systems or between two different substrates. ADUM5211ARSZ is a digital isolator developed by Analog Devices and it is designed to operate in high-voltage applications. Its main feature is that it uses an integrated TVS diode for voltage clamping and ESD protection.

The ADUM5211ARSZ has an input common mode range of -14 V to +20 V and an output common mode range of 0 V to +21 V. It also has an integral capacitor for noise filtering and transient protection. The device comes with an integrated current monitoring circuit which can be used to detect faults in the isolation barrier. The device also offers enhanced surge protection by providing protection against power surges up to 1000 V. The isolation barrier of the device is rated at 2500 V rms for one minute.

The ADUM5211ARSZ also features a high switching frequency which allows it to be used in applications that require high-speed data transmission. The device can operate at switching speeds of up to 5 MHz and it has a propagation delay of only 350 ns. This makes it ideal for applications such as high-speed data acquisition systems, motor control, LED lighting and high-speed communication systems.

The working principle of the ADUM5211ARSZ digital isolator is based on the principle of electromagnetic coupling. The inputs and the outputs are coupled through an electrical transformer which provides an isolation barrier between the two signal paths. The transformer’s core is composed of Faraday shields and two sets of windings. The input signals are transformed into a high frequency of alternating current which is then sent over the primary winding of the transformer. This high frequency signal is then filtered through the secondary winding of the transformer and is converted back to a low frequency signal which is then passed to the output.

In addition to providing high reliability and isolation, the ADUM5211ARSZ digital isolator also features a high level of EMI/RFI protection. The device’s integrated ESD protection circuitry can protect against high voltage spikes of up to 15 kV. The device also features EMC/RFI protection with a common mode rejection ratio of up to 90 dB. This ensures that the device does not pick up electrical noise from external sources.

The ADUM5211ARSZ digital isolator can be used in a wide variety of applications such as high-speed data transmission, motor control, automotive and medical applications, LED lighting and more. Its wide range of features and small size makes it a highly versatile component for many different applications. It is also suitable for high current applications as it is able to handle up to 5 Amps of continuous current.

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