ADUM1400ARWZ - Quad-Channel Digital Isolator | Analog Devices
部品番号: ADUM1400ARWZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: ADUM1400ARWZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADUM1400ARWZ （同一形状・フットプリント） — 相違点: Channel Directionality, Data Rate, Package, Operating Temperature Range, Supply Voltage Range.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM1400BRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM1400CRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM1401ARWZ
✅ ドロップイン✓ 在庫あり
$2.19 / 個
データシートを見る →ADUM1402ARWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISO7741DW
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
SI8641BB-B-IS1
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADUM1400ARWZ 仕様
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| データレート | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 動作温度範囲 | -40°C to +105°C |
| パッケージ | 16-SOIC (0.295", 7.50mm Width) |
| 実装タイプ | Surface Mount |
| Quiescent Current (per channel) | 1.3 mA |
| Channel Direction | 4/0 (all input to output) |
| RoHS ステータス | Compliant |
| Technology | iCoupler |
| ピン数 | 16 |
| 出力タイプ | Push-Pull |
ADUM1400ARWZ ピン構成
| ピン 1 | VDD1 — Input supply voltage |
| ピン 2 | GND1 — Input ground |
| ピン 3 | VIA — Input channel A |
| ピン 4 | VIB — Input channel B |
| ピン 5 | VIC — Input channel C |
| ピン 6 | VID — Input channel D |
| ピン 7 | VE1 — Enable input |
| ピン 8 | GND1 — Input ground |
| ピン 9 | GND2 — Output ground |
| ピン 10 | VOD — Output channel D |
| ピン 11 | VOC — Output channel C |
| ピン 12 | VOB — Output channel B |
| ピン 13 | VOA — Output channel A |
| ピン 14 | GND2 — Output ground |
| ピン 15 | VDD2 — Output supply voltage |
| ピン 16 | NC — No connect |
主な用途
ADUM1400ARWZ の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ADUM1400ARWZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Lower data rate but sufficient for many applications （vs ADUM1400BRWZ)
- All channels in one direction （vs ADUM1401ARWZ)
- Lower cost compared to higher-speed variants （vs ADUM1400CRWZ)
設計ノート
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.
コンプライアンス情報
RoHS compliant per Analog Devices product page. Other compliance data not specified in the provided data.