ADUM141D1BRWZ-RL7 - Quad Digital Isolator 150Mbps | Analog Devices
MPN: ADUM141D1BRWZ-RL7 ✓ Hoạt độngADUM141D1BRWZ-RL7 Tóm tắt
A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass across the isolation barrier. It is essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation. Digital isolators are part of the broader category of interface ICs, which manage signal integrity and communication between different parts of a system. They are commonly used in industrial automation, medical equipment, and communication systems.
Key features of the ADUM141D1BRWZ-RL7 include its 3:1 channel configuration (three forward channels and one reverse channel), unidirectional data flow, and support for supply voltages from 1.7V to 5.5V on both sides. The device operates over a temperature range of -40°C to +125°C, making it suitable for harsh environments. It also features fail-safe outputs that transition to a predefined state when input power is absent, ensuring predictable system behavior.
Technically, the ADUM141D1BRWZ-RL7 uses iCoupler technology, which employs microscopic transformers to transfer data across the isolation barrier. This approach offers advantages such as higher data rates, lower power consumption, and better reliability compared to optocouplers. The device is designed to meet stringent isolation standards, with a working voltage of 3.75 kV RMS and a CMTI of 75 kV/µs, ensuring robust performance in noisy industrial environments.
Typical applications include general-purpose multichannel isolation, SPI/data converter isolation, and industrial field bus isolation. The device is also suitable for medical equipment where patient safety requires galvanic isolation. Its high data rate and low propagation delay make it ideal for high-speed communication interfaces.
When designing with this device, ensure proper PCB layout to maintain isolation spacing and minimize parasitic capacitance. The supply pins should be decoupled with 0.1 µF capacitors placed close to the pins. Also, consider the fail-safe output behavior when input power is lost, as it may affect system state.
Bộ thay thế dễ dàng lắp đặt cho ADUM141D1BRWZ-RL7 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADUM141D1BRWZ-RL7 (cùng hình factor và footprint) — khác nhau ở Common-Mode Transient Immunity (CMTI), Data Rate, Number of Channels, Package, Output Type.
ADUM141D1BRWZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM141D0BRWZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM141E1BRWZ-RL7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM141D1BRWZ-RL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ISO7741DW
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
Si8641BB-B-IS1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM141D1BRWZ-RL7 Thông số kỹ thuật
| Number of Channels | 4 |
| Channel Configuration | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| Tốc độ dữ liệu | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs |
| Supply Voltage (VDD1/VDD2) | 1.7 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40°C to +125°C |
| Hộp | 16-SOIC (0.295", 7.50mm Width) |
| Kiểu lắp đặt | Surface Mount |
| Kiểu đầu ra | Unidirectional |
| Fail-Safe Output | Yes |
| Trạng thái RoHS | Compliant |
| Technology | iCoupler |
Cấu hình chân ADUM141D1BRWZ-RL7
| Chân 1 | VDD1 — Supply voltage for side 1 |
| Chân 2 | GND1 — Ground for side 1 |
| Chân 3 | VIA — Input channel A (forward) |
| Chân 4 | VIB — Input channel B (forward) |
| Chân 5 | VIC — Input channel C (forward) |
| Chân 6 | VOD — Output channel D (reverse) |
| Chân 7 | GND1 — Ground for side 1 |
| Chân 8 | NC — No connect |
| Chân 9 | NC — No connect |
| Chân 10 | GND2 — Ground for side 2 |
| Chân 11 | VID — Input channel D (reverse) |
| Chân 12 | VOA — Output channel A (forward) |
| Chân 13 | VOB — Output channel B (forward) |
| Chân 14 | VOC — Output channel C (forward) |
| Chân 15 | GND2 — Ground for side 2 |
| Chân 16 | VDD2 — Supply voltage for side 2 |
Ứng dụng tiêu biểu
ADUM141D1BRWZ-RL7 phù hợp cho 6 Áp dụngs: Industrial Field Bus Isolation, SPI/Data Converter Isolation, Medical Equipment Isolation, General-Purpose Multichannel Isolation, Automotive Electronics Isolation, Communication Interface Isolation.
Industrial Field Bus Isolation
The ADUM141D1BRWZ-RL7 provides galvanic isolation for industrial field buses such as RS-485, CAN, and PROFIBUS. Its 3750 Vrms isolation and 75 kV/µs CMTI ensure reliable communication in noisy factory environments. The 150 Mbps data rate supports high-speed bus protocols, while the 3/1 channel configuration allows bidirectional data flow for bus transceivers. The wide supply voltage range (1.7V to 5.5V) enables interfacing with various logic levels. This isolator protects sensitive controllers from ground loops and voltage transients, improving system reliability.
Được đề xuất
SPI/Data Converter Isolation
The ADUM141D1BRWZ-RL7 is ideal for isolating SPI interfaces between microcontrollers and data converters (ADCs/DACs). Its 150 Mbps data rate easily handles SPI clock speeds up to 50 MHz, and the 3/1 channel configuration provides three forward channels for MOSI, SCLK, and CS, plus one reverse channel for MISO. The low propagation delay ensures minimal timing skew. The 3750 Vrms isolation protects sensitive converters from digital noise and ground potential differences. This application is common in industrial data acquisition systems and medical monitoring equipment.
Được đề xuất
Medical Equipment Isolation
In medical devices, patient safety requires galvanic isolation between the patient-connected circuitry and the mains-powered system. The ADUM141D1BRWZ-RL7 provides 3750 Vrms isolation, meeting stringent safety standards. Its high CMTI (75 kV/µs) ensures reliable operation in the presence of defibrillator discharges and other transients. The wide temperature range (-40°C to +125°C) suits medical environments. The 3/1 channel configuration is useful for isolated communication in patient monitors, infusion pumps, and diagnostic equipment.
Được đề xuất
General-Purpose Multichannel Isolation
The ADUM141D1BRWZ-RL7 serves as a general-purpose quad-channel isolator for various digital signals, such as GPIO, PWM, and communication lines. Its 150 Mbps data rate and 3/1 channel configuration make it versatile for many applications. The fail-safe outputs ensure predictable behavior when input power is lost, which is critical for safety systems. The wide supply range allows level shifting between different voltage domains. This isolator is commonly used in motor drives, power inverters, and renewable energy systems.
Được đề xuất
Automotive Electronics Isolation
The ADUM141D1BRWZ-RL7 is suitable for automotive applications requiring isolation, such as battery management systems (BMS), on-board chargers, and motor controllers. Its wide temperature range (-40°C to +125°C) meets automotive requirements. The 3750 Vrms isolation protects low-voltage control circuits from high-voltage power stages. The high CMTI ensures reliable operation in the presence of switching transients. The 3/1 channel configuration supports bidirectional communication in BMS cell monitoring.
Được đề xuất
Communication Interface Isolation
The ADUM141D1BRWZ-RL7 is used to isolate communication interfaces like UART, I2C, and SPI in networking equipment. Its 150 Mbps data rate supports high-speed serial links, and the 3/1 channel configuration allows full-duplex communication. The 3750 Vrms isolation prevents ground loops and reduces electromagnetic interference. The device's low power consumption and small footprint make it ideal for space-constrained designs. It is commonly found in routers, switches, and industrial Ethernet equipment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM141D1BRWZ-RL7 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADUM141D1BRWZ | ADUM141D0BRWZ | ADUM141E1BRWZ-RL7 | ISO7741DW | Si8641BB-B-IS1 |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps | 150 Mbps |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 100 kV/µs | 60 kV/µs |
| Supply Voltage Range | 1.7V to 5.5V | 1.7V to 5.5V | 1.7V to 5.5V | 1.7V to 5.5V | 2.25V to 5.5V | 2.5V to 5.5V |
| Channel Configuration | 3/1 | 3/1 | 4/0 | 3/1 | 3/1 | 3/1 |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -55°C to +125°C | -40°C to +125°C |
Bảo phân biệt quan trọng
- Higher data rate than many competitors (vsISO7741DW)
- Wider supply voltage range (vsSi8641BB-B-IS1)
- Higher isolation voltage than Si8641 (vsSi8641BB-B-IS1)
Ghi chú thiết kế
For optimal performance, place 0.1 µF decoupling capacitors close to VDD1 and VDD2 pins (pin 1 and pin 16). Use a ground plane on both sides of the isolation barrier, but ensure the isolation gap is maintained to preserve the rated isolation voltage. Keep the PCB trace length between the isolator and the connector as short as possible to minimize EMI.
Maintain a minimum creepage distance of 8 mm between the input and output sides of the isolator on the PCB to meet safety standards for 3750 Vrms isolation. Avoid routing high-speed signals parallel to the isolation barrier to reduce crosstalk. Use separate ground planes for side 1 and side 2, connected only at the system star point.
Do not exceed the absolute maximum supply voltage of 6V on VDD1 or VDD2. Ensure that the input signals do not exceed the supply voltage by more than 0.3V. When using the fail-safe feature, note that the outputs will go to a predefined state when input power is lost; design your system to handle this state appropriately.
Thông tin tuân thủ
RoHS compliant per JLCPCB listing. Not AEC-Q100 qualified; for automotive, consider ADUM141E1WBRQZ-RL7 which may have automotive grade.