ADUM1400ARWZ - Quad-Channel Digital Isolator | Analog Devices
MPN： ADUM1400ARWZ ✓ 啟用中ADUM1400ARWZ 概覽
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.
直接替換替代品，適用於 ADUM1400ARWZ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADUM1400ARWZ （相同外形與佔位） — 差異在於 Channel Directionality, Data Rate, Package, Operating Temperature Range, Supply Voltage Range.
ADUM1400BRWZ
✅ 直接替換📋 參考替代品（不在目錄中）
ADUM1400CRWZ
✅ 直接替換📋 參考替代品（不在目錄中）
ADUM1401ARWZ
✅ 直接替換聯絡詢價
查看資料表 →ADUM1402ARWZ
✅ 直接替換📋 參考替代品（不在目錄中）
ISO7741DW
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
SI8641BB-B-IS1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADUM1400ARWZ 規格
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| 資料速率 | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 工作溫度範圍 | -40°C to +105°C |
| 封裝 | 16-SOIC (0.295", 7.50mm Width) |
| 安裝類型 | Surface Mount |
| Quiescent Current (per channel) | 1.3 mA |
| Channel Direction | 4/0 (all input to output) |
| RoHS 狀態 | Compliant |
| Technology | iCoupler |
| 腳位數 | 16 |
| 輸出類型 | Push-Pull |
ADUM1400ARWZ 腳位配置
| 腳位 1 | VDD1 — Input supply voltage |
| 腳位 2 | GND1 — Input ground |
| 腳位 3 | VIA — Input channel A |
| 腳位 4 | VIB — Input channel B |
| 腳位 5 | VIC — Input channel C |
| 腳位 6 | VID — Input channel D |
| 腳位 7 | VE1 — Enable input |
| 腳位 8 | GND1 — Input ground |
| 腳位 9 | GND2 — Output ground |
| 腳位 10 | VOD — Output channel D |
| 腳位 11 | VOC — Output channel C |
| 腳位 12 | VOB — Output channel B |
| 腳位 13 | VOA — Output channel A |
| 腳位 14 | GND2 — Output ground |
| 腳位 15 | VDD2 — Output supply voltage |
| 腳位 16 | NC — No connect |
典型應用
ADUM1400ARWZ 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ADUM1400ARWZ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Lower data rate but sufficient for many applications (對比ADUM1400BRWZ)
- All channels in one direction (對比ADUM1401ARWZ)
- Lower cost compared to higher-speed variants (對比ADUM1400CRWZ)
設計說明
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.
合規資訊
RoHS compliant per Analog Devices product page. Other compliance data not specified in the provided data.