ADN4654BRSZ

Overview

The ADN4654BRSZ is a dual-channel digital isolator utilizing magnetic coupling technology to transmit Low Voltage Differential Signaling (LVDS) data. It operates at data rates up to 1.1 Gbps with a propagation delay of 4 ns and rise/fall times of 350 ps. The device provides 3750 Vrms isolation voltage and supports a common-mode transient immunity of 25 kV/µs. It functions within a supply voltage range of 2.375 V to 2.625 V, drawing 60 mA of operating current. The component is housed in a 20-lead SSOP package and is rated for operation between -40°C and +125°C.

Feature Summary

• Provides high-speed signal isolation for LVDS buffers with low jitter characteristics
• Utilizes magnetic coupling for reliable data transmission in noisy environments
• Supports unidirectional data flow across two independent channels

Applications

• High-speed serial communication interfaces requiring galvanic isolation
• Industrial automation systems with significant ground potential differences
• Medical equipment needing reinforced electrical safety isolation

Procurement Notes

Verify the specific suffix 'BRSZ' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering quantity matches the reel or cut-tape specifications provided by the distributor. Confirm that the 20-SSOP package dimensions align with your PCB footprint requirements before finalizing the purchase order.

Selection Notes

Select this component when LVDS signaling requires isolation with data rates approaching 1.1 Gbps. It is suitable for applications demanding high common-mode transient immunity and wide operating temperature ranges. Consider the 20-SSOP package size relative to available board space. Verify that the 2.375 V to 2.625 V supply voltage range matches the system power architecture.

Part Context

This part belongs to the ADN4654 family of signal-isolated LVDS buffers manufactured by Analog Devices. The family includes variants such as the ADN4655 and ADN4656, which share similar functional architectures but may differ in channel counts or specific performance metrics. These devices are designed to replace traditional optocouplers in high-speed digital isolation applications.

Replacement Considerations

Check for direct substitutes within the ADN4654 series, such as the ADN4654ARZ, ensuring package and speed specifications match. Evaluate other Analog Devices LVDS isolators if pin compatibility is not required. Verify that any replacement maintains the 3750 Vrms isolation rating and 1.1 Gbps data rate capability.