ADUM1201BR

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Digital isolators are devices used to electrically separate the input from the output while allowing information transfer between them. The ADUM1201BR is one such digital isolator, designed for bidirectional communication, and characterised by its high data rate (up to 2 Mbps) and low propagation time (as low as 3 ns). The ADUM1201BR is a reliable, high-speed isolator that can be used in a variety of applications.

Application Field: The ADUM1201BR has a variety of potential applications, from industrial to automotive. It can be used to provide an isolation barrier for low-voltage power electronics, for secure communication across a noisy fieldbus, or for providing electrical isolation in safety-critical systems. The device is also very compact, allowing for easy integration into tight spaces.

In addition, the ADUM1201BR can be used in sensing applications. It has an integrated digital signal processing filter that can detect a variety of signals or pulses. This feature makes it ideal for use in noise-immune sensor systems, such as optical or acoustic sensors.

Working Principle: The ADUM1201BR achieves electrical isolation via an isolation barrier that consists of two capacitors, a transformer, and two back-to-back diodes. The isolation barrier prevents the transfer of signals and noise between the input and output while allowing for digital signals and data to transfer.

In addition to the isolation barrier, the device features a linearised receiver circuit. This circuit ensures low jitter at the receiver end of the device, allowing for reliable communications across the isolator with minimum noise or errors. The linearised receiver also helps to reduce propagation delays by constantly adjusting the receiver timing to match the transmitter, allowing for faster communication over the device.

The ADUM1201BR also features a noise-resistant transmitter circuit. This feature helps the device reject noise and common-mode voltages on the signal lines, allowing for reliable transmissions over the device, even in noisy environments.

Overall, the ADUM1201BR is a reliable, high-speed digital isolator designed for bidirectional communication. Its low propagation time and high data rate make it ideal for a variety of applications, from industrial and automotive to sensing systems. Its isolation barrier and noise-resistant transmitter and receiver circuits ensure reliable communication while preventing the transfer of unwanted signals or noise.

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