**Technical Data Sheet: ADM2587EBRWZ - RS-485/RS-422 Transceiver with Isolated Power**
**Introduction**
The ADM2587EBRWZ is a highly integrated RS-485/RS-422 transceiver with isolated power supply from Analog Devices, Inc. This device combines a differential line driver, a differential line receiver, and an isolated DC-to-DC converter in a single, compact package, making it an ideal solution for industrial and automotive applications requiring galvanic isolation and reliable data communication over long distances.
**Core Features**
- **Galvanic Isolation**: The ADM2587EBRWZ provides up to 2.5 kVrms of galvanic isolation between the data lines and the power supply, protecting the system against electrical noise and ground loops.
- **RS-485/RS-422 Compatible**: Fully compliant with the RS-485 and RS-422 standards, the transceiver supports data rates up to 10 Mbps over twisted-pair cabling, ensuring reliable communication over long distances.
- **Integrated DC-to-DC Converter**: The device incorporates an isolated DC-to-DC converter, eliminating the need for an external power supply for the isolated side. This simplifies system design and reduces overall system cost.
- **Fault Protection**: Features built-in thermal shutdown, short-circuit current limiting, and failsafe receiver outputs, protecting the transceiver and the connected equipment from damage.
- **Low Power Consumption**: Designed for low power operation, the ADM2587EBRWZ is suitable for battery-powered and power-sensitive applications.
- **High Common-Mode Rejection**: The transceiver exhibits excellent common-mode rejection, effectively suppressing common-mode noise and electromagnetic interference (EMI).
**Pinout and Packaging**
The ADM2587EBRWZ is typically packaged in a surface-mount, RoHS-compliant package, suitable for automated assembly processes. Its pinout includes connections for the isolated power supply, data lines (A, B, Z for RS-422 operation), receive enable pin, and fault indication outputs.
**Applications**
- **Industrial Automation**: Perfect for applications requiring reliable communication over noisy industrial environments, such as factory automation, machine control, and process control systems.
- **Automotive Networks**: Suitable for automotive networks, including CAN bus extensions, vehicle-to-vehicle (V2V) communication, and telematics systems.
- **Security Systems**: Ideal for security and surveillance networks, where reliable communication over long distances is crucial for real-time monitoring and control.
- **Telecommunications**: Can be used in telecommunications infrastructure, such as remote terminal units (RTUs), base stations, and distributed antenna systems (DAS).
**Development Support**
Analog Devices provides a range of design resources and tools to support the development of systems using the ADM2587EBRWZ, including:
- **Datasheets**: Detailed technical specifications and functional descriptions.
- **Application Notes**: Practical guides and design recommendations for specific use cases.
- **Evaluation Kits**: Pre-assembled evaluation boards, allowing developers to quickly evaluate the transceiver's performance and features.
- **Technical Support**: Access to a team of technical experts for design assistance and troubleshooting.
**Conclusion**
The ADM2587EBRWZ from Analog Devices is a versatile RS-485/RS-422 transceiver with integrated isolated power supply, offering a robust and reliable solution for industrial and automotive applications requiring galvanic isolation and long-distance communication. Its combination of high-speed data transmission, low power consumption, and comprehensive fault protection makes it an ideal choice for a wide range of demanding applications.
