ADUM2251ARIZ

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Digital isolators are electronic circuits used to provide electrical isolation between two pieces of digital circuitry. They are used to protect critical digital components from electrical noise, minimize the effects of ground loops, and prevent the transmission of potentially hazardous voltages. The ADUM2251ARIZ is a digital isolator integrated circuit (IC) designed specifically for high-speed data transmission. Its features include the ability to transmit and receive digital signals up to 1.25 Gbps while providing optical isolation up to 4kV. This makes it suitable for use in a range of applications, such as medical equipment, industrial control and automation systems, and automotive applications.

The ADUM2251ARIZ digital isolator’s circuitry consists of two main components: an input section and an output section. The input section is designed to accept a single-ended digital signal and converts it into two different signals, one for each side of the isolation barrier. The output section consists of two optically-isolated signal paths, one for the input signal and one for the output signal. The circuit also includes two isolation barriers, one between the input and output signals and one between the isolation barrier and the powered subsystems.

The ADUM2251ARIZ is designed for signal transmission across a wide range of frequencies, from DC to 1.25GHz. Its isolation element is a very fast optical isolator, which is capable of transmitting up to 1 Gbit/s. This makes it suitable for use in a range of applications requiring high data rate and high level of noise immunity. Furthermore, the ADUM2251ARIZ is capable of providing electromagnetic interference (EMI) filtering up to 1GHz, as well as Common Mode Rejection ratio (CMRR) of up to 70dB. This helps to protect both the input and output signals from external disturbances.

The ADUM2251ARIZ digital isolator has a wide range of uses and applications. It can be used as an interface for digital input/output for various digital circuits, as well as for the isolation of high-speed analog signals. Furthermore, it can also be used for isolation of control loops, such as in motor control circuits or feedback loops for automatic control systems. Additionally, its EMI filtering feature makes it useful for the protection of circuits from electromagnetic interference.

In summary, the ADUM2251ARIZ digital isolator is a reliable and cost-effective solution for isolating high-speed digital signals. Its ability to transmit up to 1 Gbit/s, while providing up to 4kV optical isolation, makes it suitable for a wide range of applications. Additionally, its EMI filtering feature makes it ideal for the protection of circuits from external noise. With all these features, it is no surprise that the ADUM2251ARIZ is a popular choice for digital isolation applications.

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