ADUM3154BRSZ

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The ADUM3154BRSZ is an electrical device offered by Analog Devices, Inc. that is part of the family of digital isolators. It is primarily designed to provide reliable and dependable signal isolation between two connected circuits.

The ADUM3154BRSZ digital isolator is a four-channel device that offers isolated pathways, with a maximum frequency of 3 MHz and an isolation voltage rating of 4 kV rms. Each channel consists of a digital signal and a power signal that is enabled when the digital signal is applied. Additionally, the device features integrated galvanic isolation, a low power bi-directional signal conversion, and variable input response times.

The ADUM3154BRSZ is available in dual-in-line packages for surface mounting. It is commonly used in medical, airborne, military, and space applications where isolation is needed.In these applications, the ADUM3154BRSZ provides noise immunity and EMC compliance. Additionally, its low power features reduce power consumption, and its high isolation levels guarantee reliable and secure communications.

In terms of working principle, the ADUM3154BRSZ digital isolator separates two channels using a high-frequency transformer. The transformer couples the input and output ports, providing reflections between the input and output signals. As a result, the digital isolator can successfully suppress electromagnetic interference or EMI coming from the input port. Additionally, the transformer also enables the input signal to drive the frequency of the output signal.

The built-in Galvanic isolation module prevents direct current leakage between input and output signals, while the analog signal is converted into a digital signal and then transmitted across the insulated channels. This ensures reliable data transmission, as the output signal will only be affected by the output load disturbances, not any other external sources. The ADUM3154BRSZ is configured to turn-on and turn-off in a controlled manner and includes variable input response times and low power bi-directional signal conversion in order to balance the current load on its channels.

All in all, the ADUM3154BRSZ digital isolator is an advanced device that offers superior performance and flexibility for a variety of applications. It is ideal for applications that require reliable signal isolation and EMC compliance.

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