ADUM1400ARWZ - Quad-Channel Digital Isolator | Analog Devices
料号： ADUM1400ARWZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.22 | $2,220.00 |
ADUM1400ARWZ 概述
Digital isolators are components that transmit digital signals across an isolation barrier, preventing DC current flow while allowing AC signals to pass. They are essential in applications requiring galvanic isolation for safety, ground loop elimination, and noise reduction. The ADUM1400ARWZ uses monolithic air core transformers and high-speed CMOS, offering superior performance compared to traditional optocouplers, such as higher data rates, lower power consumption, and better reliability.
Key features include four independent isolation channels, a wide supply voltage range of 2.7V to 5.5V, and a temperature range of -40°C to +105°C. The device is RoHS compliant and available in a standard SOIC-16 package, making it easy to integrate into existing designs. Its low propagation delay and high CMTI make it suitable for applications where signal integrity is critical.
The ADUM1400ARWZ operates with a typical quiescent current of 1.3mA per channel, contributing to low overall power dissipation. The isolation barrier is rated for 2500Vrms, providing robust protection against voltage transients. The device also features an enable function on the input side, allowing the outputs to be placed in a high-impedance state for multiplexing or power saving.
Typical applications include industrial fieldbus communication, motor control, power supply isolation, and medical equipment. In motor drives, the ADUM1400ARWZ isolates the control signals from the high-voltage power stage, preventing noise from corrupting the logic signals. In medical devices, it provides patient isolation, ensuring safety and compliance with stringent standards.
When designing with this device, ensure that the input and output grounds are properly separated and that bypass capacitors are placed close to the VDD pins. The enable pin can be used to disable the outputs during power-up sequencing, preventing glitches on the isolated side.
直接替换替代料： ADUM1400ARWZ ——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： ADUM1400ARWZ （相同外形与封装尺寸） ——差异在于 Channel Directionality, Data Rate, Package, Operating Temperature Range, Supply Voltage Range.
快速对比工具——选择替代料号进行并排对比：
ADUM1400BRWZ
✅ 直接替换📋 参考替代料（不在目录中）
ADUM1400CRWZ
✅ 直接替换📋 参考替代料（不在目录中）
ADUM1401ARWZ
✅ 直接替换✓ 有现货
$2.19 / 个
查看数据手册 →ADUM1402ARWZ
✅ 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）
ADUM1400ARWZ 规格参数
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| 数据速率 | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 工作温度范围 | -40°C to +105°C |
| 封装 | 16-SOIC (0.295", 7.50mm Width) |
| 安装类型 | Surface Mount |
| Quiescent Current (per channel) | 1.3 mA |
| Channel Direction | 4/0 (all input to output) |
| RoHS 状态 | Compliant |
| Technology | iCoupler |
| 引脚数 | 16 |
| 输出类型 | Push-Pull |
ADUM1400ARWZ 引脚配置
| 引脚 1 | VDD1 — Input supply voltage |
| 引脚 2 | GND1 — Input 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 | VID — Input channel D |
| 引脚 7 | VE1 — Enable input |
| 引脚 8 | GND1 — Input ground |
| 引脚 9 | GND2 — Output ground |
| 引脚 10 | VOD — Output channel D |
| 引脚 11 | VOC — Output channel C |
| 引脚 12 | VOB — Output channel B |
| 引脚 13 | VOA — Output channel A |
| 引脚 14 | GND2 — Output ground |
| 引脚 15 | VDD2 — Output supply voltage |
| 引脚 16 | NC — No connect |
典型应用
ADUM1400ARWZ 适用于 6 应用s: Industrial Fieldbus Communication, Motor Control, Power Supply Isolation, Medical Equipment, Data Acquisition Systems, Automotive Electronics.
Industrial Fieldbus Communication
The ADUM1400ARWZ provides galvanic isolation for fieldbus interfaces like RS-485 and CAN. Its 2500Vrms isolation and 25kV/µs CMTI ensure reliable data transmission in noisy industrial environments, preventing ground loops and protecting sensitive logic from high-voltage transients. The 1Mbps data rate is sufficient for most fieldbus protocols, and the low quiescent current helps minimize power consumption in remote nodes.
推荐
Motor Control
In motor drives, the ADUM1400ARWZ isolates the low-voltage control signals from the high-voltage power stage. Its high CMTI of 25kV/µs prevents false triggering due to fast switching transients, ensuring accurate PWM signal transmission. The 2500Vrms isolation protects the microcontroller from damage, while the wide supply voltage range allows interfacing with both 3.3V and 5V logic. This enhances system reliability and safety.
推荐
Power Supply Isolation
The ADUM1400ARWZ is used to isolate feedback and control signals in switch-mode power supplies. Its 2500Vrms isolation ensures safe separation between primary and secondary sides, while the 1Mbps data rate is adequate for control loop communication. The low propagation delay and high CMTI maintain signal integrity, and the small SOIC package saves board space. This improves safety and reduces noise coupling.
推荐
Medical Equipment
The ADUM1400ARWZ provides patient isolation in medical devices, meeting stringent safety standards. Its 2500Vrms isolation protects patients from electric shock, while the high CMTI ensures reliable operation in the presence of defibrillator discharges and other transients. The wide temperature range and RoHS compliance make it suitable for medical applications, and the low power consumption extends battery life in portable devices.
推荐
Data Acquisition Systems
The ADUM1400ARWZ isolates digital signals in data acquisition systems, preventing ground loops and reducing noise. Its 2500Vrms isolation protects sensitive analog front-ends from digital noise, while the 1Mbps data rate supports high-speed data transfer. The low quiescent current and small package make it ideal for multi-channel systems, and the high CMTI ensures reliable operation in industrial environments.
推荐
Automotive Electronics
The ADUM1400ARWZ is used in automotive systems for isolating communication interfaces like CAN and LIN. Its 2500Vrms isolation and high CMTI ensure reliable operation in the harsh automotive environment, with wide temperature range and RoHS compliance. The 1Mbps data rate is sufficient for most automotive protocols, and the small package saves space in ECU designs.
推荐
推荐产品汇总
工程参考数据： ADUM1400ARWZ ——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 | ADUM1400BRWZ | ADUM1400CRWZ | ADUM1401ARWZ | ADUM1402ARWZ | ISO7741DW | SI8641BB-B-IS1 |
|---|---|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 1 Mbps | 10 Mbps | 90 Mbps | 1 Mbps | 1 Mbps | 100 Mbps | 150 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs | 35 kV/µs |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.25V to 5.5V | 2.5V to 5.5V |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -55°C to +125°C | -40°C to +125°C |
| Channel Directionality | 4/0 | 4/0 | 4/0 | 3/1 | 2/2 | 4/0 | 4/0 |
关键差异点
- Lower data rate but sufficient for many applications （对比 ADUM1400BRWZ)
- All channels in one direction （对比 ADUM1401ARWZ)
- Lower cost compared to higher-speed variants （对比 ADUM1400CRWZ)
设计说明
Place 0.1µF bypass capacitors close to VDD1 and VDD2 pins to ensure stable operation. Use a solid ground plane under the device to minimize noise coupling. Keep the isolation barrier clear of copper traces to maintain the specified isolation voltage.
The ADUM1400ARWZ consumes approximately 1.3mA per channel. Ensure the power supply can handle the total current for all channels. For higher data rates, consider using the ADUM1400BRWZ or CRWZ variants, but verify power requirements.
Do not exceed the absolute maximum ratings for supply voltage or isolation voltage. Ensure the enable pin (VE1) is properly driven to avoid unintended output states. For applications requiring higher data rates, select the appropriate variant to avoid signal integrity issues.
合规信息
RoHS compliant per Analog Devices product page. Other compliance data not specified in the provided data.