ADM2682EBRIZ - 5kV Isolated RS-485 Transceiver | Analog Devices
N.º da peça: ADM2682EBRIZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $10.15 | $10,15 |
| 10 | $9.5 | $95,00 |
| 100 | $8.79 | $879,00 |
| 500 | $8.2 | $4.100,00 |
| 1.000 | $7.85 | $7.850,00 |
ADM2682EBRIZ Visão geral
An isolated RS-485 transceiver is a device that combines a differential bus transceiver with galvanic isolation, typically using an integrated DC-DC converter and digital isolators. It allows communication between systems with different ground potentials, preventing ground loops and protecting against common-mode voltage differences. In the hierarchy of interface ICs, it falls under RS-485 transceivers, which are part of the broader category of serial communication interfaces used in industrial automation, building control, and process control networks.
Key features include 5 kV rms isolation, 16 Mbps data rate, 25 kV/µs common-mode transient immunity (CMTI), and ±15 kV ESD protection on the bus pins. The integrated isolated DC-DC converter provides up to 200 mA output current, simplifying power supply design. The device operates from a single 5V supply and features thermal shutdown protection. The wide-body SOIC-16 package ensures adequate creepage and clearance for high-voltage isolation.
Technically, the ADM2682E uses Analog Devices' proprietary iCoupler technology for signal isolation and an integrated transformer for power isolation. The CMTI of 25 kV/µs ensures reliable operation in noisy industrial environments. The transceiver is fully compliant with TIA/EIA RS-485 and RS-422 standards, supporting up to 256 nodes on a bus. The device also includes a logic-side supply (VDD1) and bus-side supply (VDD2) that can be independently powered, offering flexibility in system design.
Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and isolated data acquisition systems. The high isolation voltage and ESD protection make it ideal for harsh environments where ground potential differences and electrical noise are prevalent. The integrated power isolation reduces board space and component count, improving reliability.
When designing with the ADM2682EBRIZ, ensure proper PCB layout with adequate creepage distance under the SOIC-16 package. Place decoupling capacitors close to the VDD1 and VDD2 pins, and consider the thermal dissipation of the integrated DC-DC converter. The device requires a minimum of 3.3V on VDD1 and VDD2, and the bus side can operate from 3.3V or 5V, allowing interface with various logic levels.
Alternativas drop-in para ADM2682EBRIZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ADM2682EBRIZ (mesmo formato e footprint) — diferindo em ESD Protection, Data Rate, Supply Voltage, Duplex, Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ADM2687EBRIZ
✅ Drop-In✓ Em estoque
$8.5 / unidade
Ver ficha técnica →ADM2682EBRIZ-RL7
✅ Drop-In✓ Em estoque
$5.8 / unidade
Ver ficha técnica →ADM2682EBRIZ-RL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ISO35T
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ISO3082
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ADM2682EBRIZ Especificações
| Isolation Voltage | 5000 Vrms |
| Taxa de dados | 16 Mbps |
| Number of Channels | 3 |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| ESD Protection | ±15 kV (HBM) |
| Supply Voltage (VDD1) | 3.3 V to 5 V |
| Supply Voltage (VDD2) | 3.3 V to 5 V |
| Isolated DC-DC Output Current | 200 mA |
| Number of Nodes | 256 |
| Faixa de temperatura de operação | -40°C to +85°C |
| Encapsulamento | 16-SOIC (0.295", 7.50mm Width) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Protocol | RS-422, RS-485 |
| Integrated Power Isolation | Yes |
Configuração de pinos do ADM2682EBRIZ
| Pino 1 | VDD1 — Logic side supply voltage (3.3V to 5V) |
| Pino 2 | GND1 — Logic side ground |
| Pino 3 | TXD — Transmit data input |
| Pino 4 | RXD — Receive data output |
| Pino 5 | NC — No connect |
| Pino 6 | NC — No connect |
| Pino 7 | NC — No connect |
| Pino 8 | NC — No connect |
| Pino 9 | VDD2 — Bus side supply voltage (3.3V to 5V) |
| Pino 10 | GND2 — Bus side ground |
| Pino 11 | A — Non-inverting bus line |
| Pino 12 | B — Inverting bus line |
| Pino 13 | GND2 — Bus side ground |
| Pino 14 | NC — No connect |
| Pino 15 | NC — No connect |
| Pino 16 | NC — No connect |
Aplicações típicas
ADM2682EBRIZ é adequado para 6 aplicaçãos: Industrial Fieldbus Networks, Building Automation, Isolated Data Acquisition, Motor Drive Communication, Solar Inverter Monitoring, Medical Equipment Networking.
Industrial Fieldbus Networks
The ADM2682EBRIZ is ideal for industrial fieldbus networks such as PROFIBUS and Modbus, where high-speed data transmission and galvanic isolation are critical. Its 16 Mbps data rate and 5 kV isolation ensure reliable communication in electrically noisy environments. The integrated DC-DC converter simplifies power supply design, reducing board space and component count. With 25 kV/µs CMTI, it withstands fast transients common in industrial settings, maintaining data integrity.
Recomendado
Building Automation
In building automation systems, the ADM2682EBRIZ provides isolated RS-485 communication for HVAC controllers, lighting systems, and access control panels. Its 5 kV isolation protects against ground loops and voltage surges between different building zones. The wide operating temperature range (-40°C to +85°C) ensures reliable operation in unconditioned spaces. The integrated power isolation eliminates the need for separate isolated DC-DC converters, simplifying installation and maintenance.
Recomendado
Isolated Data Acquisition
The ADM2682EBRIZ is used in isolated data acquisition systems to transmit sensor data over long distances without ground interference. Its high CMTI (25 kV/µs) ensures accurate data transfer even in the presence of large common-mode voltage transients. The 16 Mbps data rate supports high-speed sampling systems. The integrated DC-DC converter provides isolated power to remote sensors, reducing wiring complexity. This makes it suitable for remote monitoring in power plants, substations, and process control.
Recomendado
Motor Drive Communication
In variable frequency drives (VFDs) and motor control systems, the ADM2682EBRIZ provides isolated communication between the control board and the power stage. Its 5 kV isolation protects the low-voltage control circuitry from high-voltage transients generated by motor switching. The 16 Mbps data rate enables fast parameter updates and real-time control. The integrated power isolation simplifies the power supply design for the isolated side, reducing component count and improving reliability.
Recomendado
Solar Inverter Monitoring
The ADM2682EBRIZ is used in solar inverters for isolated communication between the inverter and the monitoring system. Its 5 kV isolation ensures safety and reliability in high-voltage environments. The 16 Mbps data rate supports fast data logging and remote firmware updates. The wide temperature range and high ESD protection make it suitable for outdoor installations. The integrated DC-DC converter reduces the need for external isolated power supplies, simplifying the BOM.
Recomendado
Medical Equipment Networking
In medical equipment, the ADM2682EBRIZ provides isolated RS-485 communication for patient monitoring systems, diagnostic devices, and hospital networking. Its 5 kV isolation ensures patient safety by preventing leakage currents. The high data rate supports real-time data transmission. The device's compliance with RoHS and its industrial temperature range make it suitable for medical environments. The integrated power isolation reduces electromagnetic interference, which is critical in sensitive medical applications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADM2682EBRIZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADM2687EBRIZ | ADM2682EBRIZ-RL7 | ISO35T | ISO3082 |
|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 16 Mbps | 500 kbps | 16 Mbps | 1 Mbps | 200 kbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 50 kV/µs | 25 kV/µs |
| ESD Protection | ±15 kV | ±15 kV | ±15 kV | ±16 kV | ±16 kV |
| Integrated Power Isolation | Yes (200 mA) | Yes (200 mA) | Yes (200 mA) | Yes (400 mA) | No |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
Principais diferenciais
- Integrated power isolation with 200 mA output (vs ISO3082)
- Higher data rate (16 Mbps) (vs ADM2687EBRIZ)
- 5 kV isolation with 25 kV/µs CMTI (vs ISO3082)
Notas de projeto
For 5 kV isolation, ensure adequate creepage and clearance distances on the PCB. The SOIC-16 wide body package provides 8 mm creepage, but maintain at least 8 mm spacing between the logic and bus side copper areas. Use a ground plane split under the device to prevent common-mode noise coupling.
The integrated DC-DC converter draws significant current during startup. Place a 10 µF tantalum capacitor on VDD2 and a 0.1 µF ceramic capacitor close to the VDD1 and VDD2 pins. Ensure the input supply can provide at least 200 mA to the isolated side.
The ADM2682EBRIZ dissipates power internally due to the DC-DC converter. At 16 Mbps and full load, the device may warm up. Ensure adequate airflow or a thermal pad on the PCB. The SOIC-16 package has a theta_JA of approximately 80°C/W; keep ambient temperature below 85°C to avoid thermal shutdown.
Informações de conformidade
RoHS compliant per distributor data. AEC-Q100 not applicable for this industrial interface IC.
