ADN4655BRSZ-RL7

Overview

The ADN4655BRSZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features one transmitter and one receiver channel supporting LVDS signaling at data rates up to 1.25 Gb/s. The device provides 3750 Vrms isolation voltage with a common-mode transient immunity of 25 kV/µs. Operating on a single supply between 2.375 V and 3.6 V, it draws 58 mA typical current. Key electrical parameters include a propagation delay of 4 ns and rise/fall times of 350 ps. It operates within a temperature range of -40°C to +125°C and is housed in a 20-lead SSOP package.

Feature Summary

• Integrates high-speed LVDS interface capabilities with robust magnetic isolation technology for reliable signal transmission across isolation barriers.
• Provides bidirectional data communication capability through a single transmitter and single receiver configuration optimized for gigabit speeds.
• Ensures signal integrity in electrically noisy environments via high common-mode transient immunity ratings.

Applications

• High-speed serial communication interfaces requiring galvanic isolation
• Industrial automation systems with isolated sensor data acquisition
• Medical equipment requiring patient isolation protection

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing components. Confirm that the ADN4655BRSZ variant matches the required 3750 Vrms isolation rating rather than higher voltage alternatives like the BRWZ series. Ensure compatibility with the EVAL-ADN4655EB1Z evaluation board if hardware validation is planned prior to mass production deployment.

Selection Notes

Select this component when LVDS signaling is required alongside digital isolation. The 1Tx1Rx configuration suits applications needing asymmetric data flow or clock/data separation. Consider the 20-SSOP footprint for PCB layout constraints. Verify that the 3750 Vrms insulation level meets safety standards for the target application environment compared to higher-rated options.

Part Context

This part belongs to the ADN4655 family of iCoupler digital isolators. It complements similar devices like the ADN4654 and ADN4656 which offer different channel counts or configurations. The family utilizes proprietary transformer-based isolation to replace traditional optocouplers, offering superior speed and reliability for modern high-bandwidth interface requirements.

Replacement Considerations

The ADN4655BRWZ serves as a pin-compatible alternative with an SOIC package and 5000 Vrms rating. The ADN4655BRSZ is the tube-packaged equivalent of the RL7 variant. Cross-reference datasheets to confirm isolation voltage and package dimensions match design requirements before substitution.