ADUM1411ARWZ - Quad-Channel Digital Isolator | Analog Devices
MPN： ADUM1411ARWZ ✓ 啟用中ADUM1411ARWZ 概覽
Digital isolators are components that transmit digital signals across an isolation barrier, preventing DC and noise from passing while allowing data to flow. They are essential in applications requiring safety isolation, ground loop breaking, and level shifting. The ADUM1411ARWZ belongs to the family of digital isolators, which are part of the broader category of interface ICs, used in industrial, medical, and communication systems.
Key features include four independent isolation channels with a channel configuration of 3/1 (three forward, one reverse), a maximum data rate of 1Mbps, and a propagation delay of typically 100ns. The device offers a wide operating temperature range of -40°C to +125°C and is RoHS compliant. Its iCoupler technology replaces optocouplers, offering higher reliability, lower power consumption, and better timing accuracy.
The ADUM1411ARWZ uses a proprietary magnetic isolation technique, combining high-speed CMOS and monolithic air core transformers. This architecture provides superior performance compared to optocouplers, including faster data rates, lower jitter, and no LED degradation over time. The device also features an enable pin for each side, allowing flexible control of the output states.
Typical applications include industrial field bus isolation, SPI/RS-232/RS-485 isolation, motor control, and power supply isolation. Its high CMTI makes it suitable for noisy environments where fast transients are present. The wide supply range allows interfacing with both 3.3V and 5V logic.
When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances to maintain the isolation rating. Bypass capacitors should be placed close to the VDD pins to ensure stable operation.
直接替換替代品，適用於 ADUM1411ARWZ — 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： ADUM1411ARWZ （相同外形與佔位） — 差異在於 Common-Mode Transient Immunity (CMTI), Operating Temperature Range, Package, Propagation Delay, Number of Channels.
ADUM1411ARWZ-RL
✅ 直接替換📋 參考替代品（不在目錄中）
ADUM1410ARWZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADUM1412ARWZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADUM141E1BRWZ
✅ 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）
ADUM1411ARWZ 規格
| Number of Channels | 4 |
| Channel Configuration | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| 資料速率 | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Propagation Delay | 100 ns (typical) |
| Supply Voltage (each side) | 2.7 V to 5.5 V |
| 工作溫度範圍 | -40°C to +125°C |
| 封裝 | 16-SOIC (0.295", 7.50mm Width) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Technology | iCoupler® |
| 腳位數 | 16 |
| 輸出類型 | Push-Pull |
| Input Type | Logic |
ADUM1411ARWZ 腳位配置
| 腳位 1 | VDD1 — Supply voltage for side 1 |
| 腳位 2 | GND1 — Ground for side 1 |
| 腳位 3 | VIA — Input channel A (forward) |
| 腳位 4 | VIB — Input channel B (forward) |
| 腳位 5 | VIC — Input channel C (forward) |
| 腳位 6 | VOD — Output channel D (reverse) |
| 腳位 7 | VE1 — Enable for side 1 outputs |
| 腳位 8 | GND1 — Ground for side 1 |
| 腳位 9 | GND2 — Ground for side 2 |
| 腳位 10 | VE2 — Enable for side 2 outputs |
| 腳位 11 | VID — Input channel D (reverse) |
| 腳位 12 | VOC — Output channel C (forward) |
| 腳位 13 | VOB — Output channel B (forward) |
| 腳位 14 | VOA — Output channel A (forward) |
| 腳位 15 | GND2 — Ground for side 2 |
| 腳位 16 | VDD2 — Supply voltage for side 2 |
典型應用
ADUM1411ARWZ 適用於 6 應用s: Industrial Field Bus Isolation, SPI Isolation, Motor Control, Power Supply Isolation, Medical Equipment Isolation, Communication Interface Isolation.
Industrial Field Bus Isolation
The ADUM1411ARWZ provides galvanic isolation for field bus interfaces like RS-485 and CAN. Its 3750Vrms isolation and 25kV/µs CMTI ensure reliable communication in industrial environments with ground potential differences and electrical noise. The 1Mbps data rate is sufficient for most field bus protocols, and the 3/1 channel configuration can isolate TX, RX, and control signals. The wide supply range allows direct interfacing with 3.3V or 5V logic. Compared to optocouplers, it offers faster speed, lower power, and better reliability. Place the isolator near the bus connector to minimize noise coupling, and use proper termination resistors on the bus lines.
推薦
SPI Isolation
The ADUM1411ARWZ is ideal for isolating SPI buses between microcontrollers and peripheral devices. Its 3/1 channel configuration matches the MOSI, MISO, SCLK, and CS signals, and the 1Mbps data rate supports most SPI applications. The low propagation delay of 100ns ensures minimal signal skew, maintaining data integrity. The device operates from 2.7V to 5.5V, allowing level shifting between different logic domains. Use it to isolate sensors, ADCs, or memory devices in noisy environments. Ensure the ground planes are separated and the isolation barrier is maintained in the PCB layout. The high CMTI prevents false triggering from fast transients.
推薦
Motor Control
In motor control systems, the ADUM1411ARWZ isolates the low-voltage control circuitry from the high-voltage power stage. Its 3750Vrms isolation protects the microcontroller from voltage spikes and ground bounce. The 25kV/µs CMTI ensures reliable operation in the presence of fast switching transients from the inverter. The 1Mbps data rate is adequate for PWM signals and fault feedback. The wide temperature range of -40°C to +125°C suits industrial motor drives. Use it to isolate gate driver signals, current sensing, and encoder feedback. Proper PCB layout with adequate creepage and clearance is essential to maintain isolation ratings.
推薦
Power Supply Isolation
The ADUM1411ARWZ is used to isolate control signals in power supply designs, such as feedback loops and enable signals. Its high CMTI of 25kV/µs ensures stable operation in the presence of switching noise. The 3750Vrms isolation provides safety isolation between primary and secondary sides. The 1Mbps data rate is sufficient for control signals. The device's low propagation delay helps maintain loop stability. It can replace optocouplers in many designs, offering better performance and reliability. Ensure the isolation barrier is maintained in the PCB layout, and use proper creepage distances for the required isolation level.
推薦
Medical Equipment Isolation
The ADUM1411ARWZ provides patient isolation in medical devices, meeting safety standards with its 3750Vrms isolation rating. It is used to isolate communication interfaces like UART and SPI between the patient-connected and control sections. The low power consumption and high reliability of iCoupler technology are advantageous for battery-powered devices. The wide temperature range and RoHS compliance make it suitable for medical applications. The 1Mbps data rate is sufficient for most medical data transmission. Ensure the isolation barrier meets the required creepage and clearance for medical safety standards.
推薦
Communication Interface Isolation
The ADUM1411ARWZ isolates communication interfaces such as RS-232, RS-485, and CAN in networking equipment. Its 3750Vrms isolation prevents ground loops and protects against voltage surges. The 25kV/µs CMTI ensures reliable data transmission in electrically noisy environments. The 1Mbps data rate supports standard communication protocols. The device's small SOIC package saves board space. Use it to isolate transceivers and controllers in industrial networks, building automation, and telecom systems. Proper termination and grounding are essential for optimal performance.
推薦
推薦產品摘要
工程參考資料，適用於 ADUM1411ARWZ — 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 | ADUM1411ARWZ-RL | ADUM1410ARWZ | ADUM1412ARWZ | ADUM141E1BRWZ | ISO7741DW | Si8641BB-B-IS1 |
|---|---|---|---|---|---|---|---|
| Package | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) | 16-SOIC (7.50mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 150 Mbps | 100 Mbps | 150 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs | 100 kV/µs | 60 kV/µs |
| Channel Configuration | 3/1 | 3/1 | 4/0 | 2/2 | 3/1 | 4/0 | 3/1 |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 1.8V to 5.5V | 2.25V to 5.5V | 2.5V to 5.5V |
| Propagation Delay | 100 ns | 100 ns | 100 ns | 100 ns | 13 ns | 10 ns | 10 ns |
主要差異化特點
- iCoupler technology provides superior reliability over optocouplers (對比Optocoupler-based isolators)
- High CMTI of 25kV/µs (對比ISO7741DW)
- Wide supply voltage range of 2.7V to 5.5V (對比Si8641BB-B-IS1)
設計說明
Maintain proper creepage and clearance distances between the input and output sides of the ADUM1411ARWZ to achieve the rated 3750Vrms isolation. The SOIC-W package has a minimum creepage of 8mm, which is sufficient for basic insulation. Ensure the PCB layout does not compromise this distance with traces or copper pours. Use a solid ground plane on each side, but do not connect the grounds together except through the isolation barrier.
Bypass each VDD pin with a 0.1µF ceramic capacitor placed as close as possible to the pin. Additionally, a 10µF capacitor can be used for bulk decoupling. The ADUM1411ARWZ draws low quiescent current, but transient currents during switching can cause voltage dips if bypassing is inadequate. Ensure the supply voltage stays within the 2.7V to 5.5V range under all load conditions.
Do not leave the enable pins (VE1, VE2) floating. Tie them to the respective VDD or GND to define the output state. When the enable pin is low, the outputs are high-impedance, which can cause undefined states if not properly handled. Also, ensure the input signals do not exceed the supply voltage to avoid latch-up. Refer to the datasheet for absolute maximum ratings.
合規資訊
RoHS compliant per Analog Devices product page. Other compliance data not specified in the provided data.