ADUM141D2BRWZ - Quad Digital Isolator, 150Mbps | Analog Devices
料号： ADUM141D2BRWZ ✓ 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 |
ADUM141D2BRWZ 概述
A digital isolator is a component that transfers digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical equipment.
Key features of the ADUM141D2BRWZ include a channel configuration of 3 forward and 1 reverse (3:1), input disable function, and a default output state of high (as indicated by the '2' in the part number). The device operates over a supply voltage range of 3.0 V to 5.5 V on both sides, with a maximum propagation delay of ns. It is rated for industrial temperature range from -40°C to +125°C, making it suitable for harsh environments.
The ADUM141D2BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve superior performance compared to optocouplers. This technology provides precise timing, low power consumption, and high reliability. The device also features a refresh mechanism to ensure output stability even when the input is static, and it supports a wide data rate range from DC to 150 Mbps.
Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and power supply isolation. The high CMTI of 75 kV/µs ensures reliable operation in noisy environments, such as those with fast-switching power transistors. The 3:1 channel configuration is ideal for applications requiring three forward channels and one reverse channel, such as isolated SPI with a slave-select line.
When designing with the ADUM141D2BRWZ, ensure proper decoupling capacitors (0.1 µF) are placed close to each VDD pin. The input disable function can be used to force the output to a defined state, which is useful for system reset or fault conditions. Also, consider the propagation delay and pulse width distortion when designing high-speed communication links.
直接替换替代料： ADUM141D2BRWZ ——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： ADUM141D2BRWZ （相同外形与封装尺寸） ——差异在于 Supply Voltage Range, Data Rate, Isolation Voltage, Number of Channels, Operating Temperature Range.
快速对比工具——选择替代料号进行并排对比：
ADUM141D1BRWZ
✅ 直接替换✓ 有现货
$2.88 / 个
查看数据手册 →ADUM141D0BRWZ
✅ 直接替换✓ 有现货
$3.4 / 个
查看数据手册 →ADUM141E0BRWZ
✅ 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）
ADUM141D2BRWZ 规格参数
| Number of Channels | 4 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| 数据速率 | 150 Mbps |
| CMTI | 75 kV/µs |
| Supply Voltage (VDD1/VDD2) | 3.0 V to 5.5 V |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 16-SOIC (0.295", 7.50mm Width) |
| 安装类型 | Surface Mount |
| Input Disable | Yes |
| Default Output State | High |
| Technology | iCoupler |
| RoHS 状态 | Compliant |
ADUM141D2BRWZ 引脚配置
| 引脚 1 | VDD1 — Supply voltage for side 1 |
| 引脚 2 | GND1 — Ground for side 1 |
| 引脚 3 | VIA — Input channel A (forward) |
| 引脚 4 | VIB — Input channel B (forward) |
| 引脚 5 | VIC — Input channel C (forward) |
| 引脚 6 | VID — Input channel D (reverse) |
| 引脚 7 | GND1 — Ground for side 1 |
| 引脚 8 | NC — No connect |
| 引脚 9 | VOD — Output channel D (reverse) |
| 引脚 10 | VOC — Output channel C (forward) |
| 引脚 11 | VOB — Output channel B (forward) |
| 引脚 12 | VOA — Output channel A (forward) |
| 引脚 13 | GND2 — Ground for side 2 |
| 引脚 14 | VDD2 — Supply voltage for side 2 |
| 引脚 15 | NC — No connect |
| 引脚 16 | NC — No connect |
典型应用
ADUM141D2BRWZ 适用于 6 应用s: Industrial Fieldbus Communication, Isolated SPI Interface, Motor Control, Power Supply Isolation, Medical Equipment, Data Acquisition Systems.
Industrial Fieldbus Communication
The ADUM141D2BRWZ is ideal for industrial fieldbus communication systems such as PROFIBUS, CAN, and RS-485. Its 150 Mbps data rate and 75 kV/µs CMTI ensure reliable data transmission in electrically noisy environments. The 3:1 channel configuration supports common bus architectures with one reverse channel for acknowledgments. The 3750 Vrms isolation protects low-voltage controllers from high-voltage transients on the bus, enhancing system safety and reliability.
推荐
Isolated SPI Interface
The ADUM141D2BRWZ is well-suited for isolated SPI interfaces, providing three forward channels (SCLK, MOSI, CS) and one reverse channel (MISO). Its 150 Mbps data rate supports high-speed SPI communication, while the 3750 Vrms isolation protects sensitive MCUs from high-voltage domains. The input disable function allows the outputs to be forced to a defined state during reset, preventing bus contention. This makes it ideal for isolated ADC, DAC, and sensor interfaces.
推荐
Motor Control
In motor control applications, the ADUM141D2BRWZ provides galvanic isolation between the microcontroller and gate driver circuits. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of fast-switching transients from IGBTs or MOSFETs. The 150 Mbps data rate allows for high-resolution PWM signals, and the 3:1 channel configuration can carry three phase control signals and one feedback signal. The wide temperature range of -40°C to +125°C suits industrial motor drives.
推荐
Power Supply Isolation
The ADUM141D2BRWZ is used in power supply systems to isolate control signals from high-voltage power stages. Its 3750 Vrms isolation rating meets safety requirements for reinforced insulation. The high data rate supports fast feedback loops, and the input disable function can be used for fault shutdown. The device's low propagation delay ensures minimal signal latency, which is critical for stable power regulation. It is suitable for AC-DC converters, DC-DC converters, and UPS systems.
推荐
Medical Equipment
The ADUM141D2BRWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 3750 Vrms isolation provides a robust barrier against leakage currents, meeting IEC 60601-1 standards. The high data rate and low power consumption make it ideal for patient monitoring systems, diagnostic devices, and imaging equipment. The industrial temperature range ensures reliable operation in various clinical environments. The device's small SOIC-16W package saves board space in compact medical devices.
推荐
Data Acquisition Systems
The ADUM141D2BRWZ is used in data acquisition systems to isolate analog front-ends from digital processing units. Its 150 Mbps data rate supports high-speed ADC/DAC interfaces, and the 3:1 channel configuration can carry control signals and data. The high CMTI ensures accurate data transfer in noisy industrial environments. The device's low propagation delay minimizes timing errors in synchronized sampling systems. It is ideal for isolated data loggers, test equipment, and industrial automation.
推荐
推荐产品汇总
工程参考数据： ADUM141D2BRWZ ——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 | ADUM141D0BRWZ | ADUM141E0BRWZ | ISO7741DW | SI8641BB-B-IS1 |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) |
| 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 | 35 kV/µs |
| Channel Configuration | 3 forward, 1 reverse | 3 forward, 1 reverse | 3 forward, 1 reverse | 4 forward, 0 reverse | 4 forward, 0 reverse | 4 forward, 0 reverse |
| Default Output State | High | Low | Low | Low | High | High |
| Supply Voltage Range | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 2.25V to 5.5V | 2.5V to 5.5V |
关键差异点
- High CMTI of 75 kV/µs （对比 SI8641BB-B-IS1)
- 3:1 channel configuration with input disable （对比 ISO7741DW)
- Higher data rate than ISO7741DW （对比 ISO7741DW)
设计说明
Place 0.1 µF decoupling capacitors as close as possible to each VDD pin (VDD1 and VDD2) to minimize power supply noise. Use a ground plane on both sides of the isolation barrier to reduce EMI and improve CMTI performance. Ensure adequate creepage and clearance distances on the PCB to maintain the isolation rating.
Keep the isolation barrier clear of copper traces and components to maintain the specified isolation voltage. Route high-speed signals with controlled impedance if the data rate is high. Avoid routing sensitive analog signals near the digital isolator to prevent noise coupling.
Do not exceed the absolute maximum ratings for supply voltage or input/output currents. Ensure that the input disable function is used correctly to avoid unintended output states. Verify that the default output state (high for ADUM141D2BRWZ) matches the system requirement to prevent glitches during power-up.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. REACH compliance assumed based on ADI policy.