In many fields, such as industrial automation, building control, and energy management, reliable and stable data communication is the foundation for normal system operation. As a company specializing in the supply of electronic components, Mingjiada Electronics now offers its customers the ADM2867EBRNZ—a high-performance RS-485/RS-422 transceiver with integrated signal and power isolation—directly from Analog Devices (ADI).
Product Overview: Integrated Isolation, Simplified Design
The ADM2867EBRNZ is a 5.7 kV rms signal and power-isolated RS-485 transceiver introduced by ADI, serving as the full-duplex, high-speed version of the ADM2867E series. The device integrates a low electromagnetic interference (EMI) isolated DC-DC converter, eliminating the need for an external isolated power supply and enabling both data isolation and power isolation within a single chip.
The product is housed in a 28-pin SOIC_W-FP (fine-pitch wide-body SOIC) package measuring 10.15 mm × 10.05 mm, with creepage and clearance distances exceeding 8.0 mm, meeting industrial-grade safety isolation requirements.
The ADM2867EBRNZ has passed testing to the EN 55032 Class B radiated emissions standard. EMC compliance can be achieved on a 2-layer PCB using just two small external 0402 ferrite beads, significantly simplifying PCB layout design and helping to shorten the design cycle and reduce material costs.
Key Advantages: Built for Industrial Environments
1. Outstanding Isolation and Protection Performance
High-voltage isolation: Provides a reinforced isolation rating of 5.7 kV rms, with creepage distance and clearances greater than 8 mm, meeting stringent safety standards such as UL 1577 and VDE V 0884-11.
Robust ESD Protection: The RS-485 bus pins (A, B, Y, Z) feature IEC 61000-4-2 ESD protection against ±12 kV contact discharge and ±15 kV air discharge, effectively withstanding on-site electrostatic discharges.
2. Excellent Electromagnetic Compatibility (EMC) Performance
This device passes the EN 55032 Class B radiated emissions test on a 2-layer PCB, requiring only two external 0402 ferrite beads on the isolated power supply and ground pins—a significant advantage for space-constrained or cost-sensitive designs.
3. Intelligent Features and High-Speed Communication
Cable Polarity Reversal: The ADM2867EBRNZ supports the “cable reversal” intelligent feature, allowing users to easily correct cable connection errors on the A, B, Y, and Z bus pins without hardware modifications, significantly reducing on-site debugging time.
High-Speed Transmission: Supports data rates up to 25 Mbps, meeting the demands of high-speed industrial fieldbus applications.
Application Scenarios: Extensive Coverage Across Industry and Infrastructure
The ADM2867EBRNZ’s high integration and robustness make it an ideal choice for the following application areas:
HVAC Networks: In building automation, long-distance, multi-node HVAC systems require stable, interference-resistant communication interfaces.
Industrial Fieldbus: Suitable for industrial control systems such as PLCs and DCSs, ensuring accurate data transmission in harsh factory environments.
Building Automation: Used in infrastructure such as lighting control and security systems to provide reliable node interconnectivity.
Energy Management and Smart Meters: Enables secure data acquisition and reporting in power monitoring and distribution systems.
Aerospace and Defense: Supports a wide operating temperature range of -40°C to +105°C, making it suitable for applications with stringent temperature requirements.
Technical Specifications
Manufacturer: Analog Devices (ADI)
Protocol: RS-422, RS-485
Data Rate: 25 Mbps
Isolation Voltage: 5.7 kV rms
ESD Protection: ±12 kV (contact), ±15 kV (air)
Number of Nodes: Supports up to 192 bus nodes
Operating Temperature: -40°C to +105°C
Package: 28-SOIC-W-FP
Supply Voltage: 3V to 5.5V (VCC) / 1.7V to 5.5V (VIO)
Mingjiada Electronics: A Guarantee of Quality and Service
As a professional electronic component distributor, Mingjiada Electronics supplies only brand-new, genuine ADM2867EBRNZ products, ensuring traceable origins and reliable quality. We are committed to providing our customers with competitive pricing and fast delivery to help accelerate your projects’ time-to-market.
To request samples, obtain a quote, or learn more about the product, please contact the Mingjiada Electronics sales team.
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