ADM2587EBRWZ-REEL7 - Isolated RS-485 Transceiver | Analog Devices
MPN: ADM2587EBRWZ-REEL7 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.8 | $78.00 |
| 100 | $6.9 | $690.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.6 | $5,600.00 |
Drop-in alternatives for ADM2587EBRWZ-REEL7 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADM2587EBRWZ
β Drop-Inβ In Stock
$4.75 / Unit
View Datasheet βADM2582EBRWZ
β Drop-Inπ Reference alternative (not in catalog)
ADM2582EBRWZ-REEL7
β Drop-Inπ Reference alternative (not in catalog)
ADM2587EBRWZ-REEL7 Maximum Ratings & Electrical Characteristics
| Isolation Voltage | 2500 Vrms |
| Data Rate | 500 kbps |
| Number of Channels | 2 (1 driver, 1 receiver) |
| Common-Mode Transient Immunity | >25 kV/Β΅s |
| ESD Protection | Β±15 kV (HBM) on RS-485 pins |
| Supply Voltage | 5 V or 3.3 V |
| Bus Nodes | 256 |
| Duplex | Full/Half |
| Fail-Safe | Open- and short-circuit fail-safe receiver inputs |
| Thermal Shutdown | Yes |
| Standards Compliance | ANSI/TIA/EIA-485-A-98, ISO 8482:1987(E) |
| Package | 20-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | -40Β°C to +85Β°C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADM2587EBRWZ-REEL7 Pin Configuration
| Pin 1 | VCC β Logic supply voltage (5V or 3.3V) |
| Pin 2 | GND β Logic ground |
| Pin 3 | DE β Driver enable (active high) |
| Pin 4 | RE β Receiver enable (active low) |
| Pin 5 | DI β Driver input |
| Pin 6 | RO β Receiver output |
| Pin 7 | NC β No connect |
| Pin 8 | NC β No connect |
| Pin 9 | NC β No connect |
| Pin 10 | NC β No connect |
| Pin 11 | VISO β Isolated supply output |
| Pin 12 | GNDISO β Isolated ground |
| Pin 13 | A β Non-inverting bus line |
| Pin 14 | B β Inverting bus line |
| Pin 15 | Y β Non-inverting driver output |
| Pin 16 | Z β Inverting driver output |
| Pin 17 | NC β No connect |
| Pin 18 | NC β No connect |
| Pin 19 | NC β No connect |
| Pin 20 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADM2587EBRWZ-REEL7 is suitable for 6 applications: Industrial Fieldbus Networks, Building Automation Systems, Motor Drives and Power Inverters, Remote Sensor Data Acquisition, HVAC Control Systems, Test and Measurement Equipment.
Industrial Fieldbus Networks
The ADM2587EBRWZ-REEL7 is ideal for industrial fieldbus networks such as Modbus and Profibus, where robust isolation and ESD protection are critical. Its 2500 Vrms isolation and Β±15 kV ESD protection ensure reliable communication in harsh environments with ground potential differences. The integrated DC-DC converter simplifies power supply design, reducing board space and component count. With a data rate of 500 kbps, it supports typical fieldbus speeds, and its high CMTI (>25 kV/Β΅s) prevents data corruption from fast transients in industrial settings.
Recommended
Building Automation Systems
In building automation, the ADM2587EBRWZ-REEL7 provides isolated RS-485 communication for HVAC controllers, lighting systems, and access control panels. Its 5V or 3.3V operation allows direct interface with common microcontrollers, and the integrated isolation eliminates ground loops between distributed nodes. The device's fail-safe receiver inputs ensure a defined output state when the bus is open or shorted, enhancing system reliability. With support for up to 256 nodes, it can handle large building networks, and its compact SOIC-20 package fits space-constrained control modules.
Recommended
Motor Drives and Power Inverters
The ADM2587EBRWZ-REEL7 is well-suited for motor drives and power inverters, where high common-mode transients and ground shifts are common. Its >25 kV/Β΅s CMTI ensures reliable data transmission even during fast switching events, preventing communication errors. The integrated isoPower DC-DC converter provides isolated power to the bus side, eliminating the need for separate isolated supplies. The Β±15 kV ESD protection safeguards the transceiver from electrostatic discharges in industrial environments. This makes it a robust choice for connecting control boards to power stages in variable frequency drives.
Recommended
Remote Sensor Data Acquisition
For remote sensor data acquisition, the ADM2587EBRWZ-REEL7 enables isolated RS-485 communication between sensors and a central controller. Its integrated isolation protects sensitive measurement circuits from ground noise and potential differences, ensuring accurate data transmission. The device's low data rate of 500 kbps is sufficient for most sensor applications, and its fail-safe receiver inputs prevent false data when the bus is idle. The wide operating temperature range and robust ESD protection make it suitable for outdoor and industrial sensor networks.
Recommended
HVAC Control Systems
In HVAC control systems, the ADM2587EBRWZ-REEL7 provides reliable isolated communication between thermostats, controllers, and actuators. Its 2500 Vrms isolation prevents ground loops and electrical noise from affecting control signals, improving system stability. The integrated DC-DC converter simplifies power supply design, reducing component count and board space. With support for up to 256 nodes, it can handle large building HVAC networks, and its fail-safe receiver inputs ensure safe operation during bus faults. The device's 5V or 3.3V operation allows direct interface with common HVAC microcontrollers.
Recommended
Test and Measurement Equipment
The ADM2587EBRWZ-REEL7 is used in test and measurement equipment for isolated data communication between instruments and a host PC. Its high isolation voltage and ESD protection ensure safe and reliable operation in laboratory environments. The integrated power isolation eliminates the need for external isolated supplies, simplifying instrument design. The device's 500 kbps data rate is adequate for most test equipment communication, and its fail-safe receiver inputs prevent erroneous data during idle periods. The compact SOIC-20 package is suitable for space-constrained instruments.
Recommended
Recommended Products Summary
Engineering reference data for ADM2587EBRWZ-REEL7 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM2587EBRWZ | ADM2582EBRWZ | ADM2582EBRWZ-REEL7 |
|---|---|---|---|---|
| Package | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) - same | 20-SOIC (0.295", 7.50mm Width) - same | 20-SOIC (0.295", 7.50mm Width) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Data Rate | 500 kbps | 500 kbps | 16 Mbps | 16 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| ESD Protection | Β±15 kV | Β±15 kV | Β±15 kV | Β±15 kV |
| Integrated DC-DC | Yes | Yes | Yes | Yes |
| Supply Voltage | 5V or 3.3V | 5V or 3.3V | 5V or 3.3V | 5V or 3.3V |
| Packaging | Tape & Reel | Tube | Tube | Tape & Reel |
Key Differentiators
- Integrated signal and power isolation in a single package (vs ISO3082DW (Texas Instruments))
- Higher ESD protection (Β±15 kV) compared to many competitors (vs ISL32704EIBZ (Renesas))
- Wide supply voltage range (5V or 3.3V) (vs ISO3082DW (Texas Instruments))
Design Notes
For optimal isolation performance, maintain a minimum creepage and clearance distance of 8 mm between the logic side (VCC, GND) and the isolated side (VISO, GNDISO, A, B, Y, Z) on the PCB. Place decoupling capacitors (0.1 Β΅F and 10 Β΅F) close to the VCC and VISO pins to ensure stable operation of the integrated DC-DC converter. Refer to the ADM2582E/2587E datasheet for recommended layout guidelines.
The integrated DC-DC converter can dissipate significant power, especially at higher loads. Ensure adequate copper area on the PCB for heat dissipation, particularly under the SOIC-20 package. The thermal resistance (ΞΈJA) is approximately 75Β°C/W; at 5V supply and 100 mA isolated load, power dissipation is about 0.5W, resulting in a temperature rise of 37.5Β°C. For higher loads, consider adding thermal vias.
Do not exceed the absolute maximum ratings for VCC (6V) and VISO (5.5V). Ensure the external transformer and rectifier circuit for the isoPower converter are correctly designed as per the datasheet. Incorrect transformer selection can lead to insufficient isolated power or excessive ripple. Also, avoid floating the DE and RE pins; tie them to appropriate logic levels to prevent bus contention.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Lead-free per datasheet.
