ADM2582EBRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
MPN: ADM2582EBRWZ-RL7 ✓ 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 |
ADM2582EBRWZ-RL7 Overview
An isolated RS-485 transceiver is a component that integrates a differential bus transceiver with galvanic isolation, allowing data communication between systems with different ground potentials. It typically includes an integrated isolated power supply, such as isoPower, to provide power to the secondary side without an external transformer. This category sits within the broader hierarchy of interface ICs, specifically under RS-485/RS-422 transceivers, and is essential for industrial automation, building control, and instrumentation where ground loops and noise immunity are critical.
Key features include a 2.5kVrms isolation rating, 16Mbps data rate, ±15kV ESD protection, and a common-mode transient immunity (CMTI) of 25kV/µs. The device operates from a single 5V supply and includes an integrated transformer driver, eliminating the need for external components. It supports both full-duplex and half-duplex operation, with a wide operating temperature range of -40°C to +85°C.
The ADM2582E uses Analog Devices' proprietary iCoupler technology for signal isolation and isoPower for isolated power transfer. This architecture provides reliable isolation with low power consumption and high data integrity. The integrated DC-to-DC converter simplifies PCB design and reduces board space compared to discrete isolation solutions.
Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and motor control systems. The high CMTI and ESD protection make it suitable for harsh environments where transient voltages and ground potential differences are common.
When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. The integrated power supply requires careful decoupling on both sides of the isolation barrier to maintain performance.
Drop-in alternatives for ADM2582EBRWZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADM2582EBRWZ-RL7 (same form factor and footprint) — differing in Supply Voltage, Data Rate, Number of Channels, Package, Common-Mode Transient Immunity.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADM2587EBRWZ-REEL7
✅ Drop-In✓ In Stock
$6.8409 / Unit
View Datasheet →ADM2582EBRWZ
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →ADM2483BRWZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.8182 / Unit
View Datasheet →ADM2483BRWZ-RL7
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.16 / Unit
View Datasheet →ISO3082DW
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADM2582EBRWZ-RL7 Specifications
| Isolation Voltage | 2500 Vrms |
| Data Rate | 16 Mbps |
| Number of Channels | 2 |
| CMTI | 25 kV/µs |
| ESD Protection | ±15 kV (HBM) |
| Supply Voltage | 5 V |
| Duplex Mode | Full/Half |
| Package | 20-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | -40°C to +85°C |
| Isolation Technology | iCoupler + isoPower |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
ADM2582EBRWZ-RL7 Pin Configuration
| Pin 1 | VCC — Logic side supply voltage (5V) |
| Pin 2 | GND — Logic side ground |
| Pin 3 | TXD — Transmit data input |
| Pin 4 | RXD — Receive data output |
| Pin 5 | DE — Driver enable |
| Pin 6 | RE — Receiver enable |
| Pin 7 | A — Non-inverting bus line |
| Pin 8 | B — Inverting bus line |
| Pin 9 | GND — Bus side ground |
| Pin 10 | VISO — Isolated supply output |
Typical Applications
ADM2582EBRWZ-RL7 is suitable for 6 applications: Industrial Fieldbus Networks, Building Automation, Motor Control Systems, Instrumentation, Power Utility Monitoring, Transportation Systems.
Industrial Fieldbus Networks
The ADM2582EBRWZ-RL7 is ideal for industrial fieldbus networks like PROFIBUS and Modbus, where high data rates up to 16Mbps and robust isolation are required. Its integrated isoPower eliminates the need for external DC-DC converters, simplifying design and reducing board space. The ±15kV ESD protection ensures reliability in harsh industrial environments with frequent transient voltages.
Recommended
Building Automation
In building automation systems, the ADM2582EBRWZ-RL7 provides reliable RS-485 communication for HVAC controllers, lighting systems, and access control panels. Its 2500Vrms isolation protects against ground potential differences between floors and buildings. The wide operating temperature range of -40°C to +85°C ensures operation in unconditioned spaces.
Recommended
Motor Control Systems
The ADM2582EBRWZ-RL7 is used in motor control systems to communicate between the controller and drives over long distances. Its high CMTI of 25kV/µs rejects common-mode transients from motor switching, preventing data corruption. The integrated isolation eliminates ground loops, improving system reliability.
Recommended
Instrumentation
For precision instrumentation, the ADM2582EBRWZ-RL7 provides isolated RS-485 communication between sensors and data acquisition systems. Its low-jitter data transmission and high isolation ensure accurate data transfer in noisy environments. The integrated power supply reduces external component count, simplifying PCB layout.
Recommended
Power Utility Monitoring
In power utility monitoring, the ADM2582EBRWZ-RL7 enables safe communication between high-voltage equipment and control rooms. The 2500Vrms isolation protects operators and low-voltage electronics from dangerous transients. Its high data rate supports real-time monitoring of grid parameters.
Recommended
Transportation Systems
The ADM2582EBRWZ-RL7 is suitable for transportation systems such as railway signaling and traffic control, where reliable communication over long distances is critical. Its robust ESD protection and wide temperature range ensure operation in outdoor environments. The integrated isolation prevents ground loops between different subsystems.
Recommended
Engineering reference data for ADM2582EBRWZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM2587EBRWZ-REEL7 | ADM2483BRWZ | ISO3082DW |
|---|---|---|---|---|
| Package | 20-SOIC_W | 20-SOIC_W | 20-SOIC_W | 20-SOIC_W |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 16 Mbps | 16 Mbps | 500 kbps | 20 Mbps |
| Integrated Power | Yes | Yes | No | No |
| ESD Protection | ±15 kV | ±15 kV | ±15 kV | ±16 kV |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 50 kV/µs |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
Key Differentiators
- Integrated isoPower eliminates external DC-DC converter (vs ISO3082DW)
- Higher data rate than ADM2483BRWZ (vs ADM2483BRWZ)
- Same package and pinout as ADM2587E (vs ADM2587EBRWZ-REEL7)
Design Notes
Ensure proper creepage and clearance distances for the isolation barrier. The ADM2582E requires at least 8mm creepage for 2500Vrms isolation. Place the isolation barrier in a straight line and avoid routing traces across it.
Decouple the VCC and VISO pins with 0.1µF and 10µF capacitors close to the pins. The integrated isoPower converter can generate switching noise; use a ferrite bead on the VCC input if needed.
Keep the bus lines (A and B) as short as possible and use twisted-pair cabling. Terminate the bus with appropriate resistors (typically 120Ω) to match the characteristic impedance and reduce reflections.
Compliance Information
RoHS compliant per distributor data. Other compliance info not specified in provided data.
