Overview
The ADM2687EBRIZ is a fully isolated RS-485 transceiver designed by Analog Devices Inc. for industrial applications. It integrates a 5 kV rms isolated dc-to-dc power supply using Analog Devices' isoPower® technology, ensuring robust communication in noisy environments. The device provides isolation between the data and power domains, enhancing safety and reliability in industrial settings.
Key Specifications
| Parameter | Description |
|---|---|
| Data Rate | Up to 500 kbps |
| Operating Voltage | 3.3 V or 5 V |
| Isolation Voltage | 5 kV rms |
| ESD Protection | ±15 kV on RS-485 input/output pins |
| Temperature Range | −40°C to +85°C |
| Compliance | ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) |
| Nodes per Bus | Up to 256 nodes |
| Package | 16-lead wide-body SOIC |
| RoHS Compliance | Yes |
Key Features
- Fully isolated RS-485 transceiver with integrated DC/DC converter using isoPower® technology
- Robust communication in noisy industrial environments
- Isolation between data and power domains for enhanced safety
- High data rate support up to 500 kbps
- ±15 kV ESD protection on RS-485 input/output pins
- Open- and short-circuit, fail-safe receiver inputs
- High common-mode transient immunity: >25 kV/μs
- Thermal shutdown protection
- Active high enable for the driver and active low receiver enable
Applications
- Industrial automation systems for isolated RS-485 communication
- Process control systems requiring noise-immune data transmission
- Instrumentation systems where data isolation is critical
- Multipoint data transmission systems and industrial field networks
Q & A
- What is the ADM2687EBRIZ?
The ADM2687EBRIZ is a fully isolated RS-485 transceiver with an integrated DC/DC converter, designed for industrial applications.
- What are the key features of the ADM2687EBRIZ?
Key features include integrated isoPower® DC/DC converter, robust communication in noisy environments, isolation between data and power domains, and high ESD protection.
- What is the data rate supported by the ADM2687EBRIZ?
The ADM2687EBRIZ supports data rates up to 500 kbps.
- What operating voltages does the ADM2687EBRIZ support?
The device operates from 3.3 V or 5 V.
- Is the ADM2687EBRIZ RoHS compliant?
Yes, the ADM2687EBRIZ is RoHS compliant.
- What is the isolation voltage of the ADM2687EBRIZ?
The isolation voltage is 5 kV rms.
- What are the typical applications of the ADM2687EBRIZ?
Typical applications include industrial automation, process control, and instrumentation systems.
- How many nodes can be connected on one bus using the ADM2687EBRIZ?
Up to 256 nodes can be connected on one bus.
- What is the operating temperature range of the ADM2687EBRIZ?
The operating temperature range is −40°C to +85°C.
- What safety and regulatory approvals does the ADM2687EBRIZ have?
The device has various safety and regulatory approvals including UL recognition, CSA Component Acceptance, and IEC certifications.
