ADM3068EBRMZ - 50Mbps RS-485 Transceiver | Analog Devices
부품 번호: ADM3068EBRMZ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
RS-485 is a robust differential serial communication standard used in industrial networks, building automation, and motor control systems. It enables long-distance data transmission (up to 1200 meters) and multi-drop networks with up to 32 unit loads. The ADM3068E family integrates protection features such as IEC 61000-4-2 ESD protection (≥ ±12 kV contact discharge) on the bus pins, ensuring reliability in harsh environments.
Key features include a 50 Mbps data rate for high-throughput applications, a wide supply range accommodating both 3.3 V and 5 V systems, and a VIO pin for seamless logic-level translation. The device also offers thermal shutdown and short-circuit protection, enhancing system robustness. Its low quiescent current and shutdown mode reduce power consumption in battery-powered or energy-efficient designs.
Technically, the ADM3068E uses a differential bus architecture with fail-safe receiver inputs that default to a high state when the bus is open, shorted, or terminated. This ensures predictable behavior in fault conditions. The transceiver is fully compliant with TIA/EIA RS-485 standards, guaranteeing interoperability with other compliant devices.
Typical applications include industrial automation, HVAC systems, security networks, and remote sensor data acquisition. The high data rate supports real-time control and high-resolution data streaming, while the ESD protection ensures long-term reliability in electrically noisy environments.
When designing with the ADM3068EBRMZ, proper termination resistors (typically 120 Ω) at both ends of the bus are essential to minimize reflections. Additionally, the VIO pin should be connected to the logic supply voltage to ensure correct signal levels. The device's small MSOP package requires careful PCB layout to minimize parasitic inductance and maintain signal integrity.
드롭인 대체품: ADM3068EBRMZ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
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대체품 요청ADM3068EBRMZ 사양
| 데이터 속도 | 50 Mbps |
| Supply Voltage (VCC) | 3.0 V to 5.5 V |
| Logic Supply (VIO) | 1.62 V to 5.5 V |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Duplex | Full or Half |
| ESD Protection (Bus Pins) | IEC 61000-4-2 ≥ ±12 kV contact discharge |
| 패키지 | 8-lead MSOP |
| 동작 온도 범위 | -40°C to +125°C |
| Fail-Safe | Open, short, terminated |
| 열 차단 | Yes |
| Short-Circuit Protection | Yes |
| RoHS Compliant | Yes |
| 실장 유형 | Surface Mount |
| 핀 수 | 8 |
ADM3068EBRMZ 핀 구성
| 핀 1 | RO — Receiver output |
| 핀 2 | RE — Receiver enable (active low) |
| 핀 3 | DE — Driver enable (active high) |
| 핀 4 | DI — Driver input |
| 핀 5 | GND — Ground |
| 핀 6 | A — Non-inverting bus line |
| 핀 7 | B — Inverting bus line |
| 핀 8 | VCC — Power supply |
일반적인 애플리케이션
ADM3068EBRMZ 적합 용도: 6 애플리케이션s: Industrial Automation, Building Automation, Motor Control, Security Systems, Remote Sensor Data Acquisition, Test and Measurement.
Industrial Automation
The ADM3068EBRMZ's 50 Mbps data rate and robust ESD protection make it ideal for industrial automation networks, where high-speed communication and reliability are critical. It can be used in PLCs, motor drives, and sensor networks to transmit control signals and data over long distances. The wide supply range (3.0 V to 5.5 V) allows integration into existing 3.3V or 5V systems, while the VIO pin enables direct interface with low-voltage microcontrollers. Its fail-safe receiver ensures predictable behavior in fault conditions, enhancing system safety.
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Building Automation
In building automation systems, the ADM3068EBRMZ facilitates communication between HVAC controllers, lighting systems, and security panels. Its high data rate supports real-time monitoring and control, while the ESD protection ensures reliability in electrically noisy environments. The small MSOP package saves PCB space, making it suitable for compact sensor nodes. The device's low power consumption in shutdown mode helps meet energy efficiency requirements. With a wide operating temperature range, it can be deployed in outdoor or unconditioned spaces.
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Motor Control
The ADM3068EBRMZ is well-suited for motor control systems, where high-speed communication between the controller and drives is essential. Its 50 Mbps data rate enables fast command updates and feedback, improving system responsiveness. The device's robust ESD protection (IEC 61000-4-2 ±12 kV) safeguards against transient voltages common in motor environments. The wide supply range allows operation from 5V rails, and the VIO pin simplifies interfacing with 3.3V DSPs. Its fail-safe receiver prevents erroneous commands during bus faults.
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Security Systems
In security systems, the ADM3068EBRMZ enables reliable communication between cameras, access control panels, and monitoring stations. Its high data rate supports video and metadata transmission, while the ESD protection ensures durability in outdoor installations. The device's small footprint is ideal for compact security devices. The wide operating temperature range (-40°C to +125°C) allows deployment in harsh environments. The VIO pin enables direct connection to low-voltage logic, simplifying design.
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Remote Sensor Data Acquisition
The ADM3068EBRMZ is ideal for remote sensor data acquisition systems, where sensors are distributed over long distances. Its 50 Mbps data rate allows high-resolution data streaming, and the wide supply range supports battery-powered or solar-powered nodes. The device's low quiescent current and shutdown mode extend battery life. The ESD protection ensures reliability in outdoor environments. The small MSOP package is suitable for compact sensor modules, and the VIO pin allows interfacing with low-power microcontrollers.
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Test and Measurement
In test and measurement equipment, the ADM3068EBRMZ provides high-speed data transfer between instruments and controllers. Its 50 Mbps data rate supports fast data logging and real-time analysis. The device's robust ESD protection is essential in lab environments where static discharge is common. The wide supply range allows integration into various instrument designs. The small MSOP package is beneficial for portable test equipment. The VIO pin enables direct interface with FPGA or microcontroller logic.
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추천 제품 요약
엔지니어링 참조 데이터: ADM3068EBRMZ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ADM3068EBRZ | ADM3068EBRZ-R7 | ADM3061EBRZ | MAX3485E | SN65HVD3082E |
|---|---|---|---|---|---|---|
| Package | 8-lead MSOP | 14-lead SOIC_N | 14-lead SOIC_N | 8-lead SOIC_N | 8-pin SOIC | 8-pin SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated | Texas Instruments |
| Data Rate | 50 Mbps | 50 Mbps | 50 Mbps | 500 kbps | 10 Mbps | 200 kbps |
| 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 | 3.0 V to 3.6 V | 4.5 V to 5.5 V |
| ESD Protection | IEC 61000-4-2 ±12 kV | IEC 61000-4-2 ±12 kV | IEC 61000-4-2 ±12 kV | IEC 61000-4-2 ±12 kV | ±15 kV HBM | ±16 kV HBM |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C | -40°C to +85°C |
| VIO Logic Supply | 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 | Not available | Not available |
| Fail-Safe | Open, short, terminated | Open, short, terminated | Open, short, terminated | Open, short, terminated | Open, short | Open, short |
주요 차별점
- Higher data rate (50 Mbps) compared to many alternatives (vs MAX3485E)
- Wider supply range (3.0 V to 5.5 V) with VIO logic supply (vs SN65HVD3082E)
- IEC 61000-4-2 ESD protection (±12 kV) on bus pins (vs MAX3485E)
설계 노트
For high-speed RS-485 communication at 50 Mbps, PCB layout is critical. Keep the bus lines (A and B) as short as possible and use controlled impedance traces (typically 120 Ω differential). Place the termination resistor (120 Ω) at both ends of the bus. Ensure a solid ground plane and minimize vias to reduce signal reflections and EMI.
Decouple the VCC pin with a 0.1 µF ceramic capacitor placed as close to the pin as possible. If the VIO pin is used, add a 0.1 µF capacitor to the VIO rail as well. For noisy industrial environments, consider adding a ferrite bead in series with VCC to filter high-frequency noise.
Ensure the DE and RE pins are not left floating; they should be tied to appropriate logic levels to avoid unintended driver activation. When using half-duplex, implement proper bus arbitration to prevent driver contention. Also, verify that the VIO voltage does not exceed VCC to avoid latch-up.
규정 준수 정보
RoHS compliance confirmed from Analog Devices product page. Other compliance data not explicitly stated in the provided sources.
