ADUM5412ARWZ - 4-Ch Isolator w/ DC-DC | Analog Devices
料号： ADUM5412ARWZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
ADUM5412ARWZ 概述
Digital isolators are components that transfer digital signals across an isolation barrier, preventing DC and noise from passing while allowing data and power transfer. They are essential in systems requiring galvanic isolation for safety, ground loop elimination, and noise immunity, such as industrial automation, medical equipment, and power conversion. The ADUM5412 integrates a DC-to-DC converter, enabling isolated power delivery without a separate transformer, simplifying design and reducing board space.
Key features include 2.5 kVrms isolation voltage, 150 Mbps data rate, 75 kV/µs CMTI, and an integrated DC-to-DC converter with adjustable output voltage. The device supports a wide supply voltage range of 3.0V to 5.5V on both sides, and provides up to 500 mW of isolated output power. The integrated converter eliminates the need for external transformers, reducing component count and design complexity.
The ADUM5412 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, offering superior performance compared to optocouplers in terms of speed, reliability, and power efficiency. The device includes four independent isolation channels, configurable as 2/2 (two forward, two reverse) channel directionality, and features an enable pin for output control. The integrated DC-to-DC converter uses a push-pull architecture with a fixed switching frequency, providing stable isolated power with minimal ripple.
Typical applications include isolated SPI, RS-485, and CAN interfaces, isolated power supplies for sensor systems, and industrial fieldbus communication. The high CMTI and data rate make it suitable for motor drives, inverters, and other noisy environments. The integrated DC-to-DC converter is ideal for powering isolated side circuits without additional components.
When designing with the ADUM5412, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. The integrated converter requires external capacitors for stability; refer to the datasheet for recommended values. Thermal considerations are important at high output power; the SOIC-W package has a thermal resistance of .
直接替换替代料： ADUM5412ARWZ ——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： ADUM5412ARWZ （相同外形与封装尺寸） ——差异在于 Package, Data Rate, Number of Channels, Common-Mode Transient Immunity (CMTI), Operating Temperature Range.
快速对比工具——选择替代料号进行并排对比：
ADUM5411ARWZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.16 / 个
查看数据手册 →ADUM5410ARWZ
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.44 / 个
查看数据手册 →ADUM5402ARWZ
✅ 直接替换✓ 有现货
$4.75 / 个
查看数据手册 →ADUM5412ARWZ 最大额定值与电气特性
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| 数据速率 | 150 Mbps |
| CMTI | 75 kV/µs |
| Integrated DC-DC Converter | Yes |
| Output Power (Isolated) | 500 mW |
| Supply Voltage (VDD1) | 3.0 V to 5.5 V |
| Supply Voltage (VDD2) | 3.0 V to 5.5 V |
| Channel Directionality | 2/2 (2 forward, 2 reverse) |
| 封装 | 24-SOIC-W (0.300" width) |
| 工作温度 | -40°C to +125°C |
| 使能引脚 | Yes |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount |
| Isolation Technology | iCoupler |
ADUM5412ARWZ 引脚配置
| 引脚 1 | VDD1 — Primary side supply voltage (3.0V to 5.5V) |
| 引脚 2 | GND1 — Primary side ground |
| 引脚 3 | VIA — Input channel A |
| 引脚 4 | VOA — Output channel A |
| 引脚 5 | VIB — Input channel B |
| 引脚 6 | VOB — Output channel B |
| 引脚 7 | VIC — Input channel C |
| 引脚 8 | VOC — Output channel C |
| 引脚 9 | VID — Input channel D |
| 引脚 10 | VOD — Output channel D |
| 引脚 11 | EN — Enable pin (active high) |
| 引脚 12 | GND1 — Primary side ground |
| 引脚 13 | GND2 — Secondary side ground |
| 引脚 14 | VISO — Isolated output voltage from DC-DC converter |
| 引脚 15 | GND2 — Secondary side ground |
| 引脚 16 | VDD2 — Secondary side supply voltage (3.0V to 5.5V) |
| 引脚 17 | GND2 — Secondary side ground |
| 引脚 18 | VDD2 — Secondary side supply voltage |
| 引脚 19 | GND2 — Secondary side ground |
| 引脚 20 | VDD2 — Secondary side supply voltage |
| 引脚 21 | GND2 — Secondary side ground |
| 引脚 22 | VDD2 — Secondary side supply voltage |
| 引脚 23 | GND2 — Secondary side ground |
| 引脚 24 | VDD2 — Secondary side supply voltage |
典型应用
ADUM5412ARWZ 适用于 6 应用s: Isolated SPI Interface, Isolated RS-485 Communication, Isolated CAN Bus Interface, Isolated Power Supply for Sensors, Motor Drive Isolation, Medical Equipment Isolation.
Isolated SPI Interface
The ADUM5412ARWZ provides four isolation channels and an integrated DC-DC converter, making it ideal for isolated SPI communication between a microcontroller and peripheral devices. With 150 Mbps data rate, it easily handles SPI clock and data lines. The integrated converter powers the isolated side, eliminating the need for a separate isolated supply. This simplifies design and reduces component count, making it suitable for industrial sensors and data acquisition systems.
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Isolated RS-485 Communication
The ADUM5412ARWZ can be used to isolate RS-485 transceivers, providing galvanic isolation for industrial networks. Its high CMTI of 75 kV/µs ensures reliable operation in noisy environments. The integrated DC-DC converter supplies power to the isolated side of the transceiver, simplifying the power architecture. With 150 Mbps data rate, it supports high-speed RS-485 communication, making it suitable for factory automation and building control systems.
推荐
Isolated CAN Bus Interface
The ADUM5412ARWZ is well-suited for isolating CAN bus transceivers in automotive and industrial applications. Its 150 Mbps data rate far exceeds CAN's 1 Mbps requirement, providing ample margin. The integrated DC-DC converter powers the isolated side, reducing external components. The high CMTI ensures robust operation in the presence of motor noise and other transients. This makes it ideal for electric vehicle battery management systems and industrial motor drives.
推荐
Isolated Power Supply for Sensors
The ADUM5412ARWZ integrates a DC-DC converter that can provide up to 500 mW of isolated power, making it ideal for powering isolated sensor circuits. This eliminates the need for a separate isolated power module, saving board space and cost. The device can be used to power isolated amplifiers, ADCs, or digital sensors while providing data isolation. Its wide supply range of 3.0V to 5.5V accommodates various system voltages, and the regulated output ensures stable sensor operation.
推荐
Motor Drive Isolation
In motor drive applications, the ADUM5412ARWZ provides isolation between the control side and the power stage. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of high dv/dt transients from IGBT switching. The integrated DC-DC converter can power the gate driver circuits on the high-voltage side. With 150 Mbps data rate, it can handle high-speed PWM signals. This makes it suitable for industrial inverters, servo drives, and robotics.
推荐
Medical Equipment Isolation
The ADUM5412ARWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2.5 kVrms isolation rating meets basic isolation requirements for many medical applications. The integrated DC-DC converter simplifies isolated power delivery, reducing leakage currents compared to external converters. The high data rate supports high-resolution imaging and monitoring systems. The device's small footprint and low component count make it ideal for portable medical devices.
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推荐产品汇总
工程参考数据： ADUM5412ARWZ ——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 | ADUM5412BRSZ | ADUM5411ARWZ | ADUM5410ARWZ | ADUM5402ARWZ |
|---|---|---|---|---|---|
| Package | 24-SOIC-W (0.300") | 24-SSOP (0.209") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 | 4 | 3 | 2 | 4 |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 1 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Integrated DC-DC | Yes | Yes | Yes | Yes | Yes |
| Output Power | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs |
关键差异点
- Integrated DC-DC converter （对比 ISO7742DW)
- Higher data rate （对比 ADUM5402ARWZ)
- Higher CMTI （对比 ADUM5402ARWZ)
设计说明
For the ADUM5412ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kVrms isolation rating. The SOIC-W package has a minimum creepage of 7.6 mm, so ensure the PCB layout provides at least this distance between primary and secondary side traces. Use a slot or cutout under the device to increase creepage if needed.
The integrated DC-DC converter requires external capacitors for stability. Place a 1 µF capacitor on VDD1 and VDD2, and a 10 µF capacitor on VISO. Use low-ESR ceramic capacitors placed close to the pins. The converter can deliver up to 500 mW; ensure the input supply can handle the load current.
At maximum output power (500 mW), the ADUM5412ARWZ may dissipate significant heat. The SOIC-W package has a thermal resistance of approximately 60°C/W (typical). Ensure adequate copper area on the PCB for heat dissipation, and consider airflow if operating at high ambient temperatures. Monitor junction temperature to stay within the -40°C to +125°C range.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
