Sunday, July 14, 2024

Analog Devices Announces a new 10Gbps Digital Isolator

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In modern integrated systems, there are many needs for isolated components. Digital isolators allow digital signals to be exchanged between the channels while electrically isolating them. The isolation components add value to the system by enabling additional functionality and ensuring the safe operation of the system. The digital isolators allow for multiple power domains to co-exist and sensitive circuits remain protected from switching circuits.

Analog Devices Inc. recently introduced ADN4624 which is the first in a new series of iCoupler® digital isolators that offers a total bandwidth of 10 Gigabits per second. The ADN4624 is a quad-channel 2.5 Gigabit digital isolator allowing data to transfer seamlessly in the electrical domain and enabling new system architectures in digital health, instrumentation, and smart industry. The new digital isolator streamlines design and easily integrates isolation for safety or data integrity.

The device relies on a transformer based isolation method and uses on‐chip, air‐core transformers to provide the isolation barrier. Through inductive coupling and changing magnetic fields between the two coils, data is transmitted across the isolation barrier.

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ADN4654 Schematic
ADN4654 Schematic

The ADN4624 provides 10 Gbps total bandwidth across all four channels and features a very low propagation delay of only 2.15ns. The high bandwidth and low propagation delay allows for direct isolation of high-speed serial LVDS (Low-voltage differential signaling) or CML(common mode logic) at full speed, and eliminates the complexity of deserialization.

The digital isolator provides 5.7kV rms isolation for the LVDS interface and a high common-mode transient immunity of 100 kV/μs. The device, moreover, enables precision timing with ultra-low jitter to deliver full ADC performance and resolution including precision ADC sampling clocks. 

Further information about the product can be found at



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