ADUM1401ARWZ - Quad-Channel Digital Isolator | Analog Devices
部品番号: ADUM1401ARWZ ✓ 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 | $2.19 | $2,190.00 |
ADUM1401ARWZ 概要
A digital isolator is a component that transfers digital signals across an isolation barrier, providing galvanic isolation between two circuits. This prevents dangerous voltage transients, ground loops, and noise from propagating between systems. Digital isolators are essential in applications such as motor drives, power inverters, medical equipment, and communication interfaces, where safety and signal integrity are paramount. They replace traditional optocouplers, offering higher speed, lower power consumption, and better reliability.
Key features of the ADUM1401ARWZ include low power operation: 1.0 mA per channel maximum at 5 V operation for data rates up to 2 Mbps, 3.5 mA per channel at 10 Mbps, and 31 mA per channel at 100 Mbps. At 3 V operation, the power consumption is even lower. The device operates over a supply voltage range of 2.7 V to 5.5 V on both sides, and it is specified for the industrial temperature range of -40°C to +105°C. The propagation delay is typically 100 ns, and the device features a default output state of high when the input is unpowered.
The ADUM1401ARWZ uses monolithic air core transformer technology combined with high-speed CMOS, providing superior performance compared to optocouplers. The isolation barrier is rated for 2500 Vrms, and the device meets safety standards such as UL 1577 and IEC 60747-5-5. The package is a 16-lead SOIC-W, which is widely used and easy to solder. The device is RoHS compliant and lead-free.
Typical applications include industrial field bus isolation, SPI and I2C isolation, motor control, power supply isolation, and isolated data acquisition. The ADUM1401ARWZ is particularly well-suited for isolating microcontroller interfaces in noisy industrial environments, where its high CMTI ensures reliable operation in the presence of fast transients.
When designing with this device, ensure that both power supplies are decoupled with 0.1 µF capacitors close to the VDD pins. The input and output grounds must be separated, and the PCB layout should maintain adequate creepage and clearance distances for the isolation rating. The default output state is high, which should be considered in system design to avoid unintended logic states during power-up.
ドロップイン代替品: ADUM1401ARWZ — 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: ADUM1401ARWZ （同一形状・フットプリント） — 相違点: Data Rate, Number of Channels, Package, Operating Temperature Range, Channel Directionality.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM1401BRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM1401CRWZ
✅ ドロップイン✓ 在庫あり
$2.05 / 個
データシートを見る →ADUM1401ARWZ-RL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM1401ARW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISO7241CDWR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADUM1401ARWZ 仕様
| Number of Channels | 4 |
| Channel Directionality | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 2500 Vrms |
| データレート | 1 Mbps |
| CMTI | 25 kV/µs |
| Propagation Delay | 100 ns (typical) |
| 電源電圧 | 2.7 V to 5.5 V |
| Power Consumption (5V, 2 Mbps) | 1.0 mA per channel max |
| Power Consumption (5V, 10 Mbps) | 3.5 mA per channel max |
| Power Consumption (5V, 100 Mbps) | 31 mA per channel max |
| 動作温度 | -40°C to +105°C |
| パッケージ | 16-SOIC (0.295", 7.50mm Width) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Default Output State | High |
ADUM1401ARWZ ピン構成
| ピン 1 | VDD1 — Supply voltage, side 1 |
| ピン 2 | GND1 — Ground, side 1 |
| ピン 3 | VIA — Input channel A |
| ピン 4 | VIB — Input channel B |
| ピン 5 | VIC — Input channel C |
| ピン 6 | VOD — Output channel D |
| ピン 7 | GND1 — Ground, side 1 |
| ピン 8 | NC — No connect |
| ピン 9 | NC — No connect |
| ピン 10 | GND2 — Ground, side 2 |
| ピン 11 | VOA — Output channel A |
| ピン 12 | VOB — Output channel B |
| ピン 13 | VOC — Output channel C |
| ピン 14 | VID — Input channel D |
| ピン 15 | GND2 — Ground, side 2 |
| ピン 16 | VDD2 — Supply voltage, side 2 |
主な用途
ADUM1401ARWZ の用途: 6 件s: Industrial Field Bus Isolation, SPI Isolation, Motor Control, Power Supply Isolation, Medical Equipment Isolation, Isolated Data Acquisition.
Industrial Field Bus Isolation
The ADUM1401ARWZ provides galvanic isolation for industrial field buses like RS-485 and CAN. Its 2500 Vrms isolation and 25 kV/µs CMTI ensure reliable communication in noisy factory environments. The 1 Mbps data rate is sufficient for most field bus protocols, and the low power consumption reduces heat in control cabinets. The 3/1 channel directionality matches typical bus transceiver configurations, with three channels for data and one for control signals. This isolator eliminates ground loops and protects sensitive microcontrollers from voltage transients, improving system reliability.
おすすめ
SPI Isolation
The ADUM1401ARWZ is ideal for isolating SPI buses between microcontrollers and peripheral devices. With four channels, it can isolate MOSI, MISO, SCK, and SS signals in a single package. The 1 Mbps data rate is adequate for many SPI applications, and the 100 ns propagation delay is acceptable for moderate clock speeds. The 3/1 directionality matches the typical SPI configuration with three forward signals (MOSI, SCK, SS) and one reverse (MISO). This isolation protects sensitive logic from high-voltage transients and reduces noise coupling in industrial and medical systems.
おすすめ
Motor Control
In motor control applications, the ADUM1401ARWZ isolates the microcontroller from the high-voltage power stage. Its 2500 Vrms isolation protects the control circuitry from motor transients, and the 25 kV/µs CMTI ensures reliable operation in the presence of fast switching noise. The 1 Mbps data rate is sufficient for PWM control signals, and the low propagation delay (100 ns) minimizes timing errors. The 3/1 channel directionality can be used for three PWM signals and one feedback signal, simplifying the design. This isolator enhances safety and reliability in industrial motor drives.
おすすめ
Power Supply Isolation
The ADUM1401ARWZ is used to isolate control signals in power supply designs, such as feedback loops and enable signals. Its 2500 Vrms isolation provides safety isolation between primary and secondary sides, and the 1 Mbps data rate is sufficient for control signals. The low power consumption (1.0 mA per channel at 2 Mbps) minimizes impact on efficiency. The 3/1 directionality allows for multiple control signals in one direction and a single feedback signal in the other. This isolator helps achieve regulatory compliance and improves system robustness in AC-DC and DC-DC converters.
おすすめ
Medical Equipment Isolation
The ADUM1401ARWZ provides galvanic isolation in medical devices, ensuring patient safety by isolating low-voltage control circuits from high-voltage sections. Its 2500 Vrms isolation meets medical safety standards, and the 1 Mbps data rate is adequate for monitoring and control signals. The low power consumption is beneficial for battery-powered devices. The 3/1 channel directionality is suitable for isolating sensor data and control signals. This isolator helps achieve compliance with IEC 60601 and improves patient safety in devices like patient monitors and infusion pumps.
おすすめ
Isolated Data Acquisition
The ADUM1401ARWZ is used in isolated data acquisition systems to protect sensitive measurement circuits from ground loops and noise. Its 2500 Vrms isolation and 25 kV/µs CMTI ensure accurate data transfer in industrial environments. The 1 Mbps data rate is sufficient for most sensor data, and the low propagation delay (100 ns) preserves timing accuracy. The 3/1 channel directionality can be used for multiple sensor inputs and a single control signal. This isolator enhances measurement accuracy and system reliability in test and measurement equipment.
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: ADUM1401ARWZ — 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 | ADUM1401BRWZ | ADUM1401CRWZ | ISO7241CDWR |
|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Data Rate | 1 Mbps | 10 Mbps | 90 Mbps | 150 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs |
| Propagation Delay | 100 ns | 50 ns | 32 ns | 16 ns |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 3.0V to 5.5V |
| Channel Directionality | 3/1 | 3/1 | 3/1 | 3/1 |
主な差別化要因
- iCoupler technology （vs Optocouplers)
- Low power consumption （vs ISO7241CDWR)
- Pin-compatible with ADUM1401BRWZ （vs ADUM1401BRWZ)
設計ノート
Place 0.1 µF decoupling capacitors close to VDD1 and VDD2 pins. Use a solid ground plane on each side of the isolation barrier, and ensure the isolation barrier is not bridged by any copper traces. Maintain adequate creepage and clearance distances per the isolation rating.
The ADUM1401ARWZ consumes up to 1.0 mA per channel at 2 Mbps, so total current can be up to 4 mA. Ensure the power supply can handle this load. For higher data rates, power consumption increases significantly, so consider the thermal impact.
The default output state is high when the input is unpowered. This can cause unintended logic states in your system. Ensure your design accounts for this behavior, especially during power-up sequences.
コンプライアンス情報
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.