ADUM1411ARWZ-RL7 - Quad Digital Isolator 3750Vrms | Analog Devices
部品番号: ADUM1411ARWZ-RL7 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
ADUM1411ARWZ-RL7 概要
Digital isolators are components that transmit digital signals across an isolation barrier, preventing DC and noise from passing between two ground domains. They are essential in systems where safety, noise immunity, or ground potential differences are critical. Unlike optocouplers, which use LEDs and photodiodes, iCoupler devices use monolithic air-core transformers, offering higher speed, lower power, and better reliability. Digital isolators are a subset of isolation components, which also include isolated amplifiers and isolated power supplies.
Key features of the ADUM1411ARWZ-RL7 include four independent isolation channels with a 3/1 channel directionality (three forward, one reverse), 3750Vrms isolation voltage, 1Mbps data rate, and 25kV/µs CMTI. The device operates from a 2.7V to 5.5V supply on each side, making it compatible with various logic levels. It also features low propagation delay and pulse width distortion, ensuring signal integrity in high-speed applications.
The ADUM1411ARWZ-RL7 uses iCoupler technology, which integrates CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and longer operational life. The device also includes a refresh mechanism to maintain output states when inputs are static, ensuring reliable operation in all conditions.
Typical applications include industrial fieldbus isolation, medical equipment isolation, isolated SPI/UART interfaces, and power supply control. The device is particularly suited for systems requiring robust isolation with high noise immunity, such as motor drives and PLCs. Its wide supply range and high CMTI make it ideal for harsh industrial environments.
When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to each supply pin, and consider the maximum data rate and CMTI requirements of your application to ensure reliable operation.
ドロップイン代替品: ADUM1411ARWZ-RL7 — 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: ADUM1411ARWZ-RL7 （同一形状・フットプリント） — 相違点: Common-Mode Transient Immunity (CMTI), Data Rate, Operating Temperature Range, Package, Output Type.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM1411ARWZ-RL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM1410ARWZ-RL7
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.19 / 個
データシートを見る →ADUM1412ARWZ-RL7
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADUM141D1BRWZ-RL7
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.88 / 個
データシートを見る →ADUM141E1BRWZ-RL7
✅ ドロップイン ⚠️ 仕様未検証📋 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）
ADUM1411ARWZ-RL7 仕様
| Number of Channels | 4 |
| Channel Directionality | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| データレート | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage (Side 1) | 2.7 V to 5.5 V |
| Supply Voltage (Side 2) | 2.7 V to 5.5 V |
| 動作温度範囲 | -40°C to +125°C |
| パッケージ | SOIC-16W (0.295", 7.50mm Width) |
| 実装タイプ | Surface Mount |
| Technology | iCoupler |
| RoHS ステータス | Compliant |
ADUM1411ARWZ-RL7 ピン構成
| ピン 1 | VDD1 — Supply voltage for side 1 |
| ピン 2 | GND1 — Ground for side 1 |
| ピン 3 | VIA — Input channel A (forward) |
| ピン 4 | VIB — Input channel B (forward) |
| ピン 5 | VIC — Input channel C (forward) |
| ピン 6 | VOD — Output channel D (reverse) |
| ピン 7 | NC — No connect |
| ピン 8 | NC — No connect |
| ピン 9 | NC — No connect |
| ピン 10 | NC — No connect |
| ピン 11 | NC — No connect |
| ピン 12 | NC — No connect |
| ピン 13 | VOD — Output channel D (reverse) |
| ピン 14 | VIC — Input channel C (forward) |
| ピン 15 | VIB — Input channel B (forward) |
| ピン 16 | VIA — Input channel A (forward) |
主な用途
ADUM1411ARWZ-RL7 の用途: 6 件s: Industrial Fieldbus Isolation, Medical Equipment Isolation, Isolated SPI/UART Interface, Power Supply Control, Motor Drive Isolation, Communication Interface Isolation.
Industrial Fieldbus Isolation
The ADUM1411ARWZ-RL7 provides galvanic isolation for industrial fieldbus interfaces such as RS-485, CAN, and PROFIBUS. Its 3750Vrms isolation voltage and 25kV/µs CMTI ensure reliable communication in noisy factory environments. The 1Mbps data rate is sufficient for most fieldbus protocols, and the 3/1 channel configuration can be used for transmit/receive and control signals. The wide supply range (2.7V to 5.5V) allows direct interface with 3.3V or 5V microcontrollers. In a typical RS-485 node, the isolator is placed between the UART and the transceiver, preventing ground loops and protecting the controller from transient voltages. The high CMTI prevents data errors during motor starts or relay switching, which are common in industrial settings.
おすすめ
Medical Equipment Isolation
In medical devices, patient safety requires galvanic isolation between the patient-connected circuitry and the mains-powered system. The ADUM1411ARWZ-RL7 provides 3750Vrms isolation, meeting the creepage and clearance requirements for many medical standards. Its low power consumption and high reliability make it suitable for battery-powered devices like patient monitors and infusion pumps. The 1Mbps data rate is adequate for transmitting sensor data and control signals. The 3/1 channel configuration can isolate a bidirectional data line and control signals. The device's wide operating temperature range (-40°C to +125°C) ensures performance in various clinical environments. When used with an isolated DC-DC converter, it creates a fully isolated interface for ECG, SpO2, or blood pressure sensors.
おすすめ
Isolated SPI/UART Interface
The ADUM1411ARWZ-RL7 is ideal for isolating SPI or UART communication between a microcontroller and peripheral devices. Its 3/1 channel configuration can isolate the MOSI, SCLK, and CS lines (forward) and the MISO line (reverse) for SPI, or TX, RX, and control lines for UART. The 1Mbps data rate supports standard SPI and UART speeds. The device's low propagation delay ensures minimal timing skew, which is critical for SPI communication. The wide supply range allows level shifting between different logic voltages. In a typical isolated SPI interface, the isolator is placed between the MCU and the peripheral, providing ground isolation and noise immunity. This is commonly used in motor drives, power converters, and data acquisition systems.
おすすめ
Power Supply Control
In switch-mode power supplies, the ADUM1411ARWZ-RL7 can isolate the control signals between the primary and secondary sides. Its 3750Vrms isolation voltage provides safety isolation, while the 1Mbps data rate is sufficient for PWM control signals. The high CMTI (25kV/µs) ensures reliable operation in the presence of fast voltage transients from switching. The 3/1 channel configuration can isolate the PWM signal, fault feedback, and enable signals. The wide supply range allows operation from the auxiliary power rails on both sides. In a typical isolated power supply, the isolator is used to transmit the PWM signal from the controller to the gate driver, and to receive fault signals from the secondary side. This improves safety and reduces noise coupling.
おすすめ
Motor Drive Isolation
The ADUM1411ARWZ-RL7 is used in motor drives to isolate the control circuitry from the high-voltage power stage. Its 3750Vrms isolation voltage protects the low-voltage controller from high-voltage transients. The 25kV/µs CMTI ensures reliable communication in the presence of fast switching noise from IGBTs or MOSFETs. The 1Mbps data rate is sufficient for transmitting PWM signals and fault feedback. The 3/1 channel configuration can isolate the PWM signals, enable, and fault lines. The wide operating temperature range (-40°C to +125°C) is suitable for industrial motor drives. In a typical motor drive, the isolator is placed between the MCU and the gate driver, providing galvanic isolation and preventing ground loops.
おすすめ
Communication Interface Isolation
The ADUM1411ARWZ-RL7 can isolate various communication interfaces such as RS-232, RS-485, and CAN. Its 3750Vrms isolation voltage provides safety and noise immunity. The 1Mbps data rate supports standard communication speeds. The 3/1 channel configuration can isolate TX, RX, and control lines. The high CMTI ensures reliable data transmission in noisy environments. The wide supply range allows interface with different logic levels. In a typical RS-485 network, the isolator is placed between the UART and the transceiver, preventing ground loops and protecting the controller from transient voltages. This is commonly used in building automation, industrial control, and remote monitoring systems.
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: ADUM1411ARWZ-RL7 — 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 | ADUM1411ARWZ-RL | ADUM1410ARWZ-RL7 | ADUM1412ARWZ-RL7 | ISO7741DW |
|---|---|---|---|---|---|
| Package | SOIC-16W | SOIC-16W | SOIC-16W | SOIC-16W | SOIC-16W |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 100 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
| Channel Directionality | 3/1 | 3/1 | 4/0 | 2/2 | 4/0 |
| Supply Voltage Range | 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 |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -55°C to +125°C |
主な差別化要因
- iCoupler technology provides superior reliability and performance compared to optocouplers （vs Optocoupler-based isolators)
- High CMTI of 25kV/µs ensures reliable operation in noisy industrial environments （vs ISO7741DW)
- Wide supply voltage range (2.7V to 5.5V) provides flexibility in mixed-voltage systems （vs SI8641BB-B-IS1)
設計ノート
For optimal isolation performance, maintain a minimum creepage distance of 8mm between the input and output sides on the PCB. Use a ground plane on each side, but do not connect the two ground planes together under the isolator. Place decoupling capacitors (0.1µF) close to each VDD pin, and consider adding a ferrite bead in series with the supply to reduce high-frequency noise.
Keep the traces from the isolator to the microcontroller and peripheral devices as short as possible to minimize parasitic capacitance and inductance. Avoid routing high-speed signals near the isolation barrier. For high CMTI applications, ensure that the PCB layout does not introduce parasitic coupling that could reduce the effective CMTI.
Do not exceed the absolute maximum ratings for supply voltage or isolation voltage. Ensure that the input signals do not exceed the supply voltage range. When using the device in high-noise environments, verify that the CMTI rating is sufficient for the expected transients. Also, note that the ADUM1411ARWZ-RL7 has a 3/1 channel configuration; ensure that the reverse channel is used correctly for bidirectional communication.
コンプライアンス情報
RoHS compliance indicated in product documentation. Other compliance data not specified in the provided data.
