ADM3068EBRMZ-RL7 - 50Mbps RS-485 Transceiver | Analog Devices
N.º da peça: ADM3068EBRMZ-RL7 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.56 | $25,60 |
| 100 | $2.28 | $228,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.82 | $1.820,00 |
ADM3068EBRMZ-RL7 Visão geral
RS-485 is a differential signaling standard that enables long-distance, multi-drop communication over twisted-pair cables. It is widely used in industrial automation, building automation, and instrumentation systems where noise immunity and cable lengths up to 1200 meters are required. The ADM3068E family integrates a driver and receiver, providing a complete interface between a UART and the RS-485 bus.
Key features include a wide supply range, high-speed operation, and robust ESD protection. The device also offers a logic supply pin (VIO) that allows direct interfacing with 1.62 V to 5.5 V logic levels, simplifying connection to low-voltage microcontrollers. The receiver has a true fail-safe feature that guarantees a logic-high output when the bus is open, shorted, or idle, preventing false data.
The ADM3068E uses a standard CMOS process and incorporates thermal shutdown and short-circuit protection on the driver outputs. The differential outputs are designed to meet TIA/EIA RS-485 specifications, with a typical output voltage of ±1.5 V. The device consumes low quiescent current, making it suitable for power-sensitive applications.
Typical applications include industrial control systems, building automation, HVAC controllers, and security systems. The high data rate supports real-time control and data acquisition, while the ESD protection ensures reliability in electrically noisy environments.
When designing with this device, ensure proper termination (120 Ω) at both ends of the bus to minimize reflections. The VIO pin should be connected to the logic supply voltage to match the microcontroller's I/O levels. Bypass capacitors (0.1 µF) should be placed close to the VCC and VIO pins.
Alternativas drop-in para ADM3068EBRMZ-RL7 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
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ADM3068EBRMZ-RL7 Especificações
| Supply Voltage (VCC) | 3.0 V to 5.5 V |
| Logic Supply Voltage (VIO) | 1.62 V to 5.5 V |
| Taxa de dados | 50 Mbps |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Duplex | Full |
| ESD Protection (Bus Pins) | ±12 kV IEC 61000-4-2 Contact Discharge |
| Fail-Safe | True (open, short, idle) |
| Driver Output Voltage | ±1.5 V typical |
| Receiver Input Impedance | 96 kΩ (1 unit load) |
| Corrente de repouso | 2.3 mA typical |
| Faixa de temperatura de operação | -40°C to +125°C |
| Encapsulamento | 14-lead SOIC_N (RMZ) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do ADM3068EBRMZ-RL7
| Pino 1 | RO — Receiver output |
| Pino 2 | RE — Receiver enable (active low) |
| Pino 3 | DE — Driver enable (active high) |
| Pino 4 | DI — Driver input |
| Pino 5 | GND — Ground |
| Pino 6 | A — Non-inverting bus pin |
| Pino 7 | B — Inverting bus pin |
| Pino 8 | VCC — Power supply |
| Pino 9 | Y — Non-inverting driver output |
| Pino 10 | Z — Inverting driver output |
| Pino 11 | VIO — Logic supply voltage |
| Pino 12 | NC — No connect |
| Pino 13 | NC — No connect |
| Pino 14 | NC — No connect |
Aplicações típicas
ADM3068EBRMZ-RL7 é adequado para 6 aplicaçãos: Industrial Automation, Building Automation, Telecommunication Infrastructure, Test and Measurement, Security Systems, Transportation.
Industrial Automation
The ADM3068EBRMZ-RL7 is ideal for industrial automation networks such as PROFIBUS and Modbus. Its 50 Mbps data rate enables fast communication between PLCs, sensors, and actuators. The ±12 kV ESD protection ensures reliability in electrically noisy factory environments. The full-duplex capability allows simultaneous data transmission and reception, improving throughput in real-time control systems. The wide supply range (3.0 V to 5.5 V) accommodates various industrial power rails, and the VIO pin simplifies interfacing with 3.3 V or 5 V microcontrollers.
Recomendado
Building Automation
In building automation, the ADM3068EBRMZ-RL7 is used in BACnet MS/TP networks and HVAC control systems. Its high data rate supports rapid polling of sensors and controllers, while the true fail-safe receiver ensures a defined logic state when the bus is idle. The device's low quiescent current (2.3 mA) is beneficial for power-constrained nodes. The VIO pin allows direct connection to low-voltage logic, reducing the need for level shifters. The robust ESD protection safeguards against electrostatic discharges common in building environments.
Recomendado
Telecommunication Infrastructure
The ADM3068EBRMZ-RL7 is suitable for telecommunication base stations and network equipment where high-speed RS-485 links are used for control and monitoring. Its 50 Mbps data rate supports fast configuration and status reporting. The full-duplex operation enables simultaneous bidirectional communication, which is useful for redundant control channels. The wide operating temperature range (-40°C to +125°C) ensures reliable performance in outdoor and harsh environments. The device's ESD protection meets IEC 61000-4-2 standards, providing immunity to transient surges.
Recomendado
Test and Measurement
In test and measurement equipment, the ADM3068EBRMZ-RL7 provides a high-speed interface for data acquisition systems and instrument control. Its 50 Mbps data rate allows rapid transfer of measurement data to a host controller. The full-duplex capability enables simultaneous command and response, reducing latency in automated test setups. The device's precise differential signaling ensures data integrity over long cables. The VIO pin simplifies interfacing with FPGA or microcontroller logic levels, and the small SOIC_N package saves board space.
Recomendado
Security Systems
The ADM3068EBRMZ-RL7 is used in security systems for communication between control panels, sensors, and cameras. Its high data rate supports video and alarm data transmission, while the robust ESD protection ensures reliability in outdoor installations. The full-duplex operation allows simultaneous status updates and command transmission. The device's fail-safe receiver prevents false alarms when the bus is disconnected. The wide supply range and VIO pin make it compatible with various security system power and logic levels.
Recomendado
Transportation
In transportation systems, the ADM3068EBRMZ-RL7 is used for communication in railway, automotive, and marine applications. Its wide temperature range and ESD protection make it suitable for harsh environments. The 50 Mbps data rate supports high-speed data exchange for control and monitoring systems. The full-duplex capability enables reliable bidirectional communication in redundant networks. The device's low power consumption is beneficial for battery-powered or energy-efficient systems.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADM3068EBRMZ-RL7 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADM3068EBRZ-R7 | ADM3068EBRZ | ADM3068EBRZ-RL7 |
|---|---|---|---|---|
| Package | 14-lead SOIC_N | 14-lead SOIC_N | 14-lead SOIC_N | 14-lead SOIC_N |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Data Rate | 50 Mbps | 50 Mbps | 50 Mbps | 50 Mbps |
| Supply Voltage (VCC) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Logic Supply (VIO) | 1.62 V to 5.5 V | 1.62 V to 5.5 V | 1.62 V to 5.5 V | 1.62 V to 5.5 V |
| ESD Protection | ±12 kV IEC | ±12 kV IEC | ±12 kV IEC | ±12 kV IEC |
| Duplex | Full | Full | Full | Full |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Principais diferenciais
- 50 Mbps data rate (vs ADM3488ARZN-RL7)
- Full-duplex operation (vs ADM3488ARZN-RL7)
- ±12 kV IEC ESD protection (vs ADM3488ARZN-RL7)
Notas de projeto
Place 0.1 µF bypass capacitors close to the VCC and VIO pins to filter high-frequency noise. Use a 10 µF bulk capacitor on VCC if the supply is shared with other components. Ensure the ground plane is continuous under the device to minimize EMI.
Keep the RS-485 bus traces (A, B, Y, Z) as short as possible and route them as a differential pair with controlled impedance (typically 120 Ω). Avoid stubs and use termination resistors at both ends of the bus to prevent reflections. Place the termination resistor close to the connector.
Do not forget to connect the VIO pin to the logic supply voltage. If VIO is left floating, the device may not operate correctly. Also, ensure the DE and RE pins are properly controlled to avoid bus contention. Use pull-up or pull-down resistors as needed.
Informações de conformidade
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
