ADM2582EBRWZ - Isolated RS-485 Transceiver | Analog Devices
料号： ADM2582EBRWZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.5 | $5,500.00 |
ADM2582EBRWZ 概述
An isolated RS-485 transceiver is a type of interface IC that combines a differential bus transceiver with galvanic isolation, protecting the host side from ground loops, voltage spikes, and noise on the bus. It is part of the broader category of digital isolators and interface ICs, which are essential in industrial automation, motor control, and building automation systems where reliable data transmission over long distances is required. The ADM2582E integrates the isolation barrier and power conversion, simplifying design and reducing board space compared to discrete solutions.
Key features include a 2.5 kVrms isolation rating, ±15 kV ESD protection on the bus pins, and a wide supply voltage range of 3.3V to 5V. The transceiver is configurable as full or half duplex, with a driver output capable of driving up to 64 nodes on the bus. The isoPower technology uses high-frequency switching to transfer power across the isolation barrier, providing a regulated output for the bus side. The device also includes thermal shutdown and short-circuit protection, ensuring robust operation in fault conditions.
Technically, the ADM2582E uses Analog Devices' proprietary isoPower and iCoupler technologies, which integrate the transformer and isolation capacitors into the package. This results in a compact solution with high reliability. The device has a typical propagation delay of 50 ns and a skew of 5 ns, ensuring precise timing for high-speed communication. The common-mode transient immunity of 25 kV/µs prevents data corruption in noisy environments.
Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, and other RS-485/RS-422 communication links in factory automation, HVAC systems, and motor drives. The integrated power isolation makes it ideal for applications where a separate isolated supply is impractical. The device is also suitable for building automation and security systems where long cable runs and ground potential differences are common.
When designing with the ADM2582E, ensure proper PCB layout with adequate spacing for the isolation barrier and use recommended decoupling capacitors on both sides. The device requires an external transformer for the isoPower converter, which must be selected according to the datasheet guidelines. Also, consider the maximum data rate and cable length to maintain signal integrity.
直接替换替代料： ADM2582EBRWZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADM2582EBRWZ （相同外形与封装尺寸） ——差异在于 Data Rate, Package, Supply Voltage, Operating Temperature Range, Type.
快速对比工具——选择替代料号进行并排对比：
ADM2587EBRWZ
✅ 直接替换✓ 有现货
$4.62 / 个
查看数据手册 →ADM2582EBRWZ-REEL7
✅ 直接替换📋 参考替代料（不在目录中）
ADM2587EBRWZ-REEL7
✅ 直接替换✓ 有现货
$6.8409 / 个
查看数据手册 →ADM2483BRWZ
✅ 直接替换✓ 有现货
$3.8182 / 个
查看数据手册 →ADM2483BRWZ-RL7
✅ 直接替换✓ 有现货
$4.16 / 个
查看数据手册 →ISO3082DW
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADM2582EBRWZ 规格参数
| Isolation Voltage | 2500 Vrms |
| 数据速率 | 16 Mbps |
| Common-Mode Transient Immunity | 25 kV/µs |
| ESD Protection | ±15 kV (HBM) |
| Number of Channels | 2 |
| 电源电压 | 3.3 V to 5 V |
| Duplex | Full/Half |
| Number of Nodes | 64 |
| 封装 | 20-SOIC (0.295", 7.50mm Width) |
| 工作温度 | -40°C to +85°C |
| Propagation Delay | 50 ns (typical) |
| Skew | 5 ns (typical) |
| Isolation Technology | isoPower, iCoupler |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount |
ADM2582EBRWZ 引脚配置
| 引脚 1 | VCC — Logic supply voltage (3.3V or 5V) |
| 引脚 2 | GND — Logic ground |
| 引脚 3 | TXD — Transmit data input |
| 引脚 4 | RXD — Receive data output |
| 引脚 5 | DE — Driver enable (active high) |
| 引脚 6 | RE — Receiver enable (active low) |
| 引脚 7 | A — Non-inverting bus line |
| 引脚 8 | B — Inverting bus line |
| 引脚 9 | GND — Isolated ground |
| 引脚 10 | VISO — Isolated supply output |
| 引脚 11 | VISO — Isolated supply output |
| 引脚 12 | GND — Isolated ground |
| 引脚 13 | B — Inverting bus line |
| 引脚 14 | A — Non-inverting bus line |
| 引脚 15 | RE — Receiver enable (active low) |
| 引脚 16 | DE — Driver enable (active high) |
| 引脚 17 | RXD — Receive data output |
| 引脚 18 | TXD — Transmit data input |
| 引脚 19 | GND — Logic ground |
| 引脚 20 | VCC — Logic supply voltage (3.3V or 5V) |
典型应用
ADM2582EBRWZ 适用于 6 应用s: Industrial Fieldbus Networks, Motor Control Systems, Building Automation, Solar Inverters, Medical Equipment, Transportation Systems.
Industrial Fieldbus Networks
The ADM2582EBRWZ is ideal for industrial fieldbus networks such as PROFIBUS and Modbus, where reliable, isolated RS-485 communication is required over long distances. Its 16 Mbps data rate and 25 kV/µs CMTI ensure robust data transmission in noisy factory environments. The integrated isoPower eliminates the need for an external isolated supply, simplifying design and reducing board space. With ±15 kV ESD protection, it withstands harsh conditions. The device supports up to 64 nodes, enabling large multi-drop networks. Its wide operating temperature range (-40°C to +85°C) suits industrial settings.
推荐
Motor Control Systems
In motor control systems, the ADM2582EBRWZ provides galvanic isolation between the controller and the motor drive, protecting against ground loops and voltage transients. Its high CMTI of 25 kV/µs prevents data corruption from fast switching noise. The integrated power isolation reduces component count and simplifies PCB layout. The device supports full-duplex communication, enabling simultaneous read/write operations for real-time control. With ±15 kV ESD protection, it withstands electrostatic discharges common in industrial environments. The 16 Mbps data rate allows high-speed feedback loops.
推荐
Building Automation
The ADM2582EBRWZ is well-suited for building automation systems, including HVAC controls and lighting systems, where RS-485 networks connect sensors and actuators over long cable runs. Its 2.5 kVrms isolation protects against ground potential differences between floors or buildings. The integrated isoPower eliminates the need for separate isolated supplies, reducing installation complexity. The device's 16 Mbps data rate supports fast polling of multiple nodes. Its wide temperature range and ESD protection ensure reliable operation in building environments. The full/half-duplex configurability allows flexible network topologies.
推荐
Solar Inverters
In solar inverter systems, the ADM2582EBRWZ provides isolated communication between the inverter controller and monitoring systems. The 2.5 kVrms isolation protects against high-voltage transients from the solar panels. The integrated isoPower simplifies the power supply design, as it generates the isolated bus-side supply from the 3.3V or 5V input. The device's high CMTI ensures reliable data transmission in the presence of switching noise from the inverter. With ±15 kV ESD protection, it withstands harsh outdoor conditions. The 16 Mbps data rate supports fast data logging and remote monitoring.
推荐
Medical Equipment
The ADM2582EBRWZ is used in medical equipment for isolated communication between patient monitoring devices and central systems. Its 2.5 kVrms isolation ensures patient safety by preventing dangerous voltages from reaching the patient. The integrated isoPower reduces the risk of ground loops and simplifies the power supply design. The device's low propagation delay and high data rate enable real-time data transmission. With ±15 kV ESD protection, it meets the reliability requirements of medical environments. The wide temperature range ensures operation in various clinical settings.
推荐
Transportation Systems
In transportation systems, such as railway and automotive applications, the ADM2582EBRWZ provides isolated RS-485 communication for control and monitoring. Its 2.5 kVrms isolation protects against voltage spikes from traction systems. The integrated isoPower eliminates the need for an external isolated supply, reducing weight and space. The device's high CMTI ensures reliable communication in the presence of electromagnetic interference. With ±15 kV ESD protection, it withstands harsh environmental conditions. The 16 Mbps data rate supports high-speed data exchange between subsystems.
推荐
推荐产品汇总
工程参考数据： ADM2582EBRWZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADM2587EBRWZ | ADM2483BRWZ | ISO3082DW |
|---|---|---|---|---|
| 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 | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 16 Mbps | 16 Mbps | 500 kbps | 20 Mbps |
| 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 | 3.3V to 5V | 3.3V to 5V | 3.3V to 5V | 3.3V to 5V |
| Integrated Power | Yes (isoPower) | Yes (isoPower) | Yes (isoPower) | No (requires external isolated supply) |
关键差异点
- Integrated isoPower eliminates external isolated supply （对比 ISO3082DW)
- Higher data rate than ADM2483BRWZ （对比 ADM2483BRWZ)
- Same package and pinout as ADM2587EBRWZ （对比 ADM2587EBRWZ)
设计说明
For the ADM2582EBRWZ, ensure proper PCB layout with adequate spacing between the logic side and the isolated side to maintain the 2.5 kVrms isolation rating. Use a solid ground plane on each side and avoid routing traces across the isolation barrier. Place decoupling capacitors (0.1 µF and 10 µF) close to the VCC and VISO pins. The isoPower converter requires an external transformer (e.g., Wurth Elektronik 750313771) and a rectifier diode, as specified in the datasheet. Follow the recommended layout in the datasheet to minimize EMI.
The ADM2582EBRWZ dissipates power due to the integrated isoPower converter. At maximum data rate and load, the power dissipation can be significant. Ensure adequate thermal management by providing copper pour on the PCB and ensuring airflow. The thermal resistance from junction to ambient (θJA) is approximately 80°C/W for the SOIC-20 package. Calculate the junction temperature to ensure it stays below the maximum rating of 150°C. For high ambient temperatures, consider derating the data rate or adding a heatsink.
A common pitfall is neglecting the external transformer for the isoPower converter. The ADM2582E requires an external transformer and rectifier diode to generate the isolated supply. Using an incorrect transformer can lead to insufficient power or excessive EMI. Also, ensure that the bus termination resistors (120 Ω) are placed at both ends of the RS-485 bus to prevent reflections. Do not exceed the absolute maximum ratings for VCC and VISO. Additionally, the RE and DE pins must be properly controlled to avoid bus contention.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Halogen-free status not specified in available data.
