ADM2487EBRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
MPN: ADM2487EBRWZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
Drop-in alternatives for ADM2487EBRWZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADM2487EBRWZ-REEL7
✅ Drop-In📋 Reference alternative (not in catalog)
ADM2487EBRWZ
✅ Drop-In✓ In Stock
$4.16 / Unit
View Datasheet →ADM2483BRWZ-RL7
✅ Drop-In✓ In Stock
$4.16 / Unit
View Datasheet →ADM2483BRWZ
✅ Drop-In✓ In Stock
$3.75 / Unit
View Datasheet →ISO3082DW
✅ Drop-In📋 Reference alternative (not in catalog)
MAX14850
✅ Drop-In📋 Reference alternative (not in catalog)
ADM2487EBRWZ-RL7 Maximum Ratings & Electrical Characteristics
| Isolation Voltage | 2500 Vrms |
| Data Rate | 500 kbps |
| Number of Channels | 3 |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| ESD Protection | ±15 kV (HBM) |
| Supply Voltage (Logic Side) | 5 V |
| Supply Voltage (Bus Side) | 5 V |
| Quiescent Current | 2.5 mA (typical) |
| Operating Temperature Range | -40°C to +85°C |
| Package | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Duplex Mode | Half/Full |
| Integrated Transformer Driver | Yes |
| Number of Transceivers | 1 |
ADM2487EBRWZ-RL7 Pin Configuration
| Pin 1 | VDD1 — Logic side supply voltage (5V) |
| Pin 2 | GND1 — Logic side ground |
| Pin 3 | TXD — Transmit data input |
| Pin 4 | RXD — Receive data output |
| Pin 5 | DE — Driver enable (active high) |
| Pin 6 | RE — Receiver enable (active low) |
| Pin 7 | NC — No connect |
| Pin 8 | GND1 — Logic side ground |
| Pin 9 | VDD2 — Bus side supply voltage (5V) |
| Pin 10 | GND2 — Bus side ground |
| Pin 11 | A — Non-inverting bus line |
| Pin 12 | B — Inverting bus line |
| Pin 13 | Y — Driver output (non-inverting) |
| Pin 14 | Z — Driver output (inverting) |
| Pin 15 | GND2 — Bus side ground |
| Pin 16 | VDD2 — Bus side supply voltage (5V) |
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
ADM2487EBRWZ-RL7 is suitable for 6 applications: Industrial Fieldbus Networks, Building Automation, Isolated Data Acquisition, Medical Equipment, Transportation Systems, Networking Equipment.
Industrial Fieldbus Networks
The ADM2487EBRWZ-RL7 is ideal for industrial fieldbus networks such as PROFIBUS and Modbus, where reliable, isolated RS-485 communication is required. Its 2500 Vrms isolation and ±15 kV ESD protection ensure robust operation in harsh industrial environments with ground potential differences. The integrated transformer driver simplifies the design of isolated power supplies, reducing component count and board space. With a data rate of 500 kbps, it supports typical fieldbus speeds, and its high CMTI of 25 kV/µs ensures reliable data transfer in the presence of fast transients.
Recommended
Building Automation
In building automation systems, the ADM2487EBRWZ-RL7 provides isolated RS-485 communication for HVAC controllers, lighting systems, and access control panels. Its 2500 Vrms isolation protects sensitive control electronics from ground loops and voltage surges common in building wiring. The device's half-duplex capability allows multiple nodes to share a single twisted-pair bus, reducing wiring costs. The integrated transformer driver enables a compact isolated power supply, making it suitable for space-constrained controller modules. With a wide operating temperature range of -40°C to +85°C, it operates reliably in unconditioned spaces.
Recommended
Isolated Data Acquisition
The ADM2487EBRWZ-RL7 is well-suited for isolated data acquisition systems where sensors and data loggers are separated by large ground potential differences. Its 2500 Vrms isolation prevents ground loops that could corrupt analog measurements. The device supports full-duplex communication, enabling simultaneous data transmission and reception for real-time monitoring. The high ESD protection (±15 kV) ensures reliability in industrial environments with electrostatic discharge risks. The integrated transformer driver allows the generation of an isolated supply for the sensor side, simplifying the overall system design.
Recommended
Medical Equipment
In medical equipment, the ADM2487EBRWZ-RL7 provides galvanic isolation to protect patients and sensitive electronics from electrical hazards. Its 2500 Vrms isolation meets typical medical safety requirements for signal isolation. The device's low quiescent current (2.5 mA) is beneficial for battery-powered or low-power medical devices. The integrated transformer driver reduces the number of external components, which is advantageous in compact medical devices. The wide temperature range and high ESD protection ensure reliable operation in clinical environments.
Recommended
Transportation Systems
The ADM2487EBRWZ-RL7 is used in transportation systems such as railway signaling and vehicle-to-infrastructure communication, where robust isolated RS-485 links are essential. Its 2500 Vrms isolation protects against voltage transients from traction power systems. The device's high CMTI (25 kV/µs) ensures reliable communication in the presence of electromagnetic interference from motors and power electronics. The integrated transformer driver simplifies the design of isolated power supplies in space-constrained enclosures. With a wide operating temperature range, it operates reliably in outdoor and under-hood environments.
Recommended
Networking Equipment
In networking equipment, the ADM2487EBRWZ-RL7 provides isolated RS-485 interfaces for management ports and console connections. Its 2500 Vrms isolation protects the main board from surges on external cables. The device supports full-duplex communication, enabling simultaneous transmit and receive for efficient management traffic. The integrated transformer driver allows a compact isolated power supply, reducing board space in dense networking hardware. The high ESD protection ensures reliability in environments where cables may be frequently connected and disconnected.
Recommended
Recommended Products Summary
Engineering reference data for ADM2487EBRWZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM2487EBRWZ-REEL7 | ADM2487EBRWZ | ADM2483BRWZ-RL7 | ADM2483BRWZ | ISO3082DW | MAX14850 |
|---|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Maxim Integrated |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 500 kbps | 500 kbps | 500 kbps | 500 kbps | 500 kbps | 200 kbps | 500 kbps |
| ESD Protection | ±15 kV | ±15 kV | ±15 kV | ±15 kV | ±15 kV | ±16 kV | ±15 kV |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs |
| Integrated Transformer Driver | Yes | Yes | Yes | No | No | No | No |
| Duplex Mode | Half/Full | Half/Full | Half/Full | Half/Full | Half/Full | Half/Full | Half/Full |
Key Differentiators
- Integrated transformer driver simplifies isolated power design (vs ADM2483BRWZ-RL7)
- Higher data rate than some cross-brand alternatives (vs ISO3082DW)
- Same-brand family compatibility (vs MAX14850)
Design Notes
For optimal isolation performance, maintain a clean separation between the logic side (VDD1/GND1) and bus side (VDD2/GND2) on the PCB. Avoid routing traces across the isolation barrier, and ensure the isolation gap is at least 8 mm to meet the 2500 Vrms rating. Place decoupling capacitors (0.1 µF and 10 µF) close to each supply pin.
The integrated transformer driver requires an external transformer to generate the isolated supply. Choose a transformer with a turns ratio suitable for the desired output voltage (typically 1:1 for 5V to 5V). Ensure the transformer's isolation rating exceeds the required 2500 Vrms. Add a rectifier and filter capacitor on the secondary side to produce a clean DC supply.
Do not exceed the absolute maximum ratings for supply voltage (6V) or bus voltage. Ensure proper termination (120 Ω) on the RS-485 bus to prevent reflections. For half-duplex operation, connect Y to A and Z to B externally. Verify the enable pins (DE and RE) are correctly driven to avoid bus contention.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Halogen-free status not specified in available data.
