ADUM141D1BRWZ - Quad Digital Isolator 150Mbps | Analog Devices
料号： ADUM141D1BRWZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.05 | $40.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.24 | $1,620.00 |
| 1,000 | $2.88 | $2,880.00 |
ADUM141D1BRWZ 概述
A digital isolator is a component that transfers digital signals between two isolated domains, providing galvanic isolation to protect against voltage transients, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in industrial automation, medical equipment, and communication systems where safety and signal integrity are critical.
Key features of the ADUM141D1BRWZ include a 3:1 channel configuration (three forward channels and one reverse channel), a wide supply voltage range of 1.7V to 5.5V on both sides, and a fail-safe output state that defaults to high when the input power is absent. The device supports data rates up to 150 Mbps, making it suitable for high-speed serial interfaces such as SPI and UART. The CMTI of 75 kV/µs ensures reliable operation in noisy environments, preventing erroneous data transmission during fast voltage transients.
The ADUM141D1BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including lower power consumption, higher data rates, and better timing accuracy. The device also features a default output state that can be configured to high or low, allowing designers to choose the safe state for their application.
Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and medical monitoring equipment. The wide supply voltage range and high data rate make it versatile for various isolation requirements. The device is also pin-compatible with other ADuM14x series isolators, enabling easy upgrades or downgrades in channel configuration.
When designing with the ADUM141D1BRWZ, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The device is RoHS compliant and suitable for surface-mount assembly.
直接替换替代料： ADUM141D1BRWZ ——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： ADUM141D1BRWZ （相同外形与封装尺寸） ——差异在于 Supply Voltage Range, Data Rate, Isolation Voltage, Operating Temperature Range, Common-Mode Transient Immunity (CMTI).
快速对比工具——选择替代料号进行并排对比：
ADUM141D1BRWZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
ADUM140D1BRWZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADUM141D1BRWZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
ISO7741DW
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SI8641BB-B-IS1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADUM141D1BRWZ 规格参数
| Number of Channels | 4 |
| Channel Configuration | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| 数据速率 | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs |
| Supply Voltage (VDD1/VDD2) | 1.7 V to 5.5 V |
| 输出类型 | Push-Pull |
| Fail-Safe Output State | High (default) |
| 封装 | 16-SOIC (0.295", 7.50mm Width) |
| 工作温度范围 | -40°C to +125°C |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount |
| Technology | iCoupler |
ADUM141D1BRWZ 引脚配置
| 引脚 1 | VDD1 — Input side supply voltage |
| 引脚 2 | GND1 — Input side ground |
| 引脚 3 | VIA — Input channel A |
| 引脚 4 | VIB — Input channel B |
| 引脚 5 | VIC — Input channel C |
| 引脚 6 | VOD — Output channel D (reverse) |
| 引脚 7 | GND1 — Input side ground |
| 引脚 8 | NC — No connect |
| 引脚 9 | NC — No connect |
| 引脚 10 | GND2 — Output side ground |
| 引脚 11 | VID — Input channel D (reverse) |
| 引脚 12 | VOA — Output channel A |
| 引脚 13 | VOB — Output channel B |
| 引脚 14 | VOC — Output channel C |
| 引脚 15 | GND2 — Output side ground |
| 引脚 16 | VDD2 — Output side supply voltage |
典型应用
ADUM141D1BRWZ 适用于 6 应用s: Industrial Fieldbus Communication, Isolated SPI Interface, Motor Control, Medical Monitoring Equipment, Communication Systems, Power Supply Control.
Industrial Fieldbus Communication
The ADUM141D1BRWZ is ideal for isolating fieldbus interfaces like RS-485, CAN, and PROFIBUS. Its 150 Mbps data rate supports high-speed communication, while the 3.75 kV isolation protects against ground loops and voltage transients. The 3/1 channel configuration is perfect for full-duplex communication, with one reverse channel for the receive path. The high CMTI of 75 kV/µs ensures reliable data transmission in noisy industrial environments, preventing errors during motor switching or other transients. The wide supply voltage range (1.7V to 5.5V) allows direct interface with various logic levels, simplifying design.
推荐
Isolated SPI Interface
The ADUM141D1BRWZ is well-suited for isolating SPI buses between microcontrollers and peripheral devices. The 3/1 channel configuration provides three forward channels for MOSI, SCLK, and CS, and one reverse channel for MISO, enabling full-duplex SPI communication. The 150 Mbps data rate easily handles SPI clock speeds up to 50 MHz. The low propagation delay and high CMTI ensure accurate data transfer even in electrically noisy environments. The wide supply voltage range allows level shifting between different logic domains, making it ideal for mixed-voltage systems.
推荐
Motor Control
In motor control applications, the ADUM141D1BRWZ provides galvanic isolation between the microcontroller and the gate driver circuits. The high CMTI of 75 kV/µs is critical for withstanding the fast voltage transients generated by PWM switching. The 3/1 channel configuration can be used to isolate three-phase gate signals and a feedback signal. The wide supply voltage range (1.7V to 5.5V) allows direct connection to both 3.3V and 5V logic. The robust isolation (3.75 kV) ensures safety in high-voltage motor drives, protecting the low-voltage control circuitry.
推荐
Medical Monitoring Equipment
The ADUM141D1BRWZ is suitable for medical devices requiring patient isolation, such as ECG and EEG monitors. The 3.75 kV isolation provides a safety barrier between the patient and the monitoring electronics, meeting stringent medical safety standards. The high data rate (150 Mbps) supports high-resolution data acquisition, while the low power consumption (1.5 mA per channel at 5V) is ideal for battery-powered devices. The fail-safe output state ensures a defined output during power-up, enhancing patient safety. The wide temperature range (-40°C to +125°C) allows use in various clinical environments.
推荐
Communication Systems
The ADUM141D1BRWZ is used in communication systems to isolate digital interfaces between line cards and control planes. Its 150 Mbps data rate supports high-speed serial links, while the 3.75 kV isolation protects against lightning surges and ground potential differences. The 3/1 channel configuration is ideal for isolating full-duplex UART or SPI links. The high CMTI ensures reliable operation in environments with high electromagnetic interference. The wide supply voltage range allows interfacing with various logic families, making it a versatile choice for telecom and networking equipment.
推荐
Power Supply Control
The ADUM141D1BRWZ is used in isolated power supply designs to transmit PWM control signals across the isolation barrier. The high CMTI (75 kV/µs) ensures stable operation in the presence of switching noise. The 3/1 channel configuration can be used for primary-side control and secondary-side feedback. The wide supply voltage range (1.7V to 5.5V) allows direct connection to both the primary and secondary side controllers. The 3.75 kV isolation provides safety in high-voltage power supplies, protecting the low-voltage control circuitry from transients.
推荐
推荐产品汇总
工程参考数据： ADUM141D1BRWZ ——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 | ADUM141D1BRWZ-RL | ADUM140D1BRWZ | 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 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions |
| Channel Configuration | 3/1 | 3/1 | 4/0 | 4/0 | 4/0 |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps | 150 Mbps |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 100 kV/µs | 50 kV/µs |
| Supply Voltage Range | 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 |
| Fail-Safe Output State | High | High | High | High or Low (selectable) | High or Low (selectable) |
关键差异点
- 3/1 channel configuration （对比 ADUM140D1BRWZ)
- Higher data rate than ISO7741DW （对比 ISO7741DW)
- Wider supply voltage range （对比 SI8641BB-B-IS1)
设计说明
For optimal isolation performance, maintain a minimum creepage distance of 8 mm between the input and output sides on the PCB. Use a ground plane under the isolator to reduce noise, but ensure the plane is split to maintain isolation. Place decoupling capacitors (0.1 µF) close to VDD1 and VDD2 pins to minimize supply noise.
Route the isolation barrier traces with at least 0.5 mm spacing to prevent arcing. Keep high-speed signal traces short and direct to minimize parasitic capacitance. Avoid routing digital signals parallel to the isolation barrier to reduce coupling.
Do not exceed the absolute maximum ratings for VDD1 and VDD2 (7V). Ensure both supplies are powered before applying input signals to avoid undefined output states. The fail-safe output defaults to high, but verify this matches your system's safe state requirement.
合规信息
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification indicated.