ADUM5412ARWZ - 4-Ch Isolator w/ DC-DC | Analog Devices
MPN: ADUM5412ARWZ ✓ نشطADUM5412ARWZ نظرة عامة
Digital isolators are components that transfer digital signals across an isolation barrier, preventing DC and noise from passing while allowing data and power transfer. They are essential in systems requiring galvanic isolation for safety, ground loop elimination, and noise immunity, such as industrial automation, medical equipment, and power conversion. The ADUM5412 integrates a DC-to-DC converter, enabling isolated power delivery without a separate transformer, simplifying design and reducing board space.
Key features include 2.5 kVrms isolation voltage, 150 Mbps data rate, 75 kV/µs CMTI, and an integrated DC-to-DC converter with adjustable output voltage. The device supports a wide supply voltage range of 3.0V to 5.5V on both sides, and provides up to 500 mW of isolated output power. The integrated converter eliminates the need for external transformers, reducing component count and design complexity.
The ADUM5412 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, offering superior performance compared to optocouplers in terms of speed, reliability, and power efficiency. The device includes four independent isolation channels, configurable as 2/2 (two forward, two reverse) channel directionality, and features an enable pin for output control. The integrated DC-to-DC converter uses a push-pull architecture with a fixed switching frequency, providing stable isolated power with minimal ripple.
Typical applications include isolated SPI, RS-485, and CAN interfaces, isolated power supplies for sensor systems, and industrial fieldbus communication. The high CMTI and data rate make it suitable for motor drives, inverters, and other noisy environments. The integrated DC-to-DC converter is ideal for powering isolated side circuits without additional components.
When designing with the ADUM5412, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. The integrated converter requires external capacitors for stability; refer to the datasheet for recommended values. Thermal considerations are important at high output power; the SOIC-W package has a thermal resistance of .
بدائل مباشرة لـ ADUM5412ARWZ — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADUM5412ARWZ (نفس عامل الشكل والبصمة) — يختلف في Package, Data Rate, Number of Channels, Common-Mode Transient Immunity (CMTI), Operating Temperature Range.
ADUM5411ARWZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ADUM5410ARWZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ADUM5402ARWZ
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADUM5412ARWZ الحدود القصوى والخصائص الكهربائية
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| معدل البيانات | 150 Mbps |
| CMTI | 75 kV/µs |
| Integrated DC-DC Converter | Yes |
| Output Power (Isolated) | 500 mW |
| Supply Voltage (VDD1) | 3.0 V to 5.5 V |
| Supply Voltage (VDD2) | 3.0 V to 5.5 V |
| Channel Directionality | 2/2 (2 forward, 2 reverse) |
| العلبة | 24-SOIC-W (0.300" width) |
| درجة حرارة التشغيل | -40°C to +125°C |
| دبوس التمكين | Yes |
| حالة RoHS | Compliant |
| نوع التركيب | Surface Mount |
| Isolation Technology | iCoupler |
تكوين أطراف ADUM5412ARWZ
| دبوس 1 | VDD1 — Primary side supply voltage (3.0V to 5.5V) |
| دبوس 2 | GND1 — Primary side ground |
| دبوس 3 | VIA — Input channel A |
| دبوس 4 | VOA — Output channel A |
| دبوس 5 | VIB — Input channel B |
| دبوس 6 | VOB — Output channel B |
| دبوس 7 | VIC — Input channel C |
| دبوس 8 | VOC — Output channel C |
| دبوس 9 | VID — Input channel D |
| دبوس 10 | VOD — Output channel D |
| دبوس 11 | EN — Enable pin (active high) |
| دبوس 12 | GND1 — Primary side ground |
| دبوس 13 | GND2 — Secondary side ground |
| دبوس 14 | VISO — Isolated output voltage from DC-DC converter |
| دبوس 15 | GND2 — Secondary side ground |
| دبوس 16 | VDD2 — Secondary side supply voltage (3.0V to 5.5V) |
| دبوس 17 | GND2 — Secondary side ground |
| دبوس 18 | VDD2 — Secondary side supply voltage |
| دبوس 19 | GND2 — Secondary side ground |
| دبوس 20 | VDD2 — Secondary side supply voltage |
| دبوس 21 | GND2 — Secondary side ground |
| دبوس 22 | VDD2 — Secondary side supply voltage |
| دبوس 23 | GND2 — Secondary side ground |
| دبوس 24 | VDD2 — Secondary side supply voltage |
التطبيقات النموذجية
ADUM5412ARWZ مناسب لـ 6 التطبيقs: Isolated SPI Interface, Isolated RS-485 Communication, Isolated CAN Bus Interface, Isolated Power Supply for Sensors, Motor Drive Isolation, Medical Equipment Isolation.
Isolated SPI Interface
The ADUM5412ARWZ provides four isolation channels and an integrated DC-DC converter, making it ideal for isolated SPI communication between a microcontroller and peripheral devices. With 150 Mbps data rate, it easily handles SPI clock and data lines. The integrated converter powers the isolated side, eliminating the need for a separate isolated supply. This simplifies design and reduces component count, making it suitable for industrial sensors and data acquisition systems.
موصى به
Isolated RS-485 Communication
The ADUM5412ARWZ can be used to isolate RS-485 transceivers, providing galvanic isolation for industrial networks. Its high CMTI of 75 kV/µs ensures reliable operation in noisy environments. The integrated DC-DC converter supplies power to the isolated side of the transceiver, simplifying the power architecture. With 150 Mbps data rate, it supports high-speed RS-485 communication, making it suitable for factory automation and building control systems.
موصى به
Isolated CAN Bus Interface
The ADUM5412ARWZ is well-suited for isolating CAN bus transceivers in automotive and industrial applications. Its 150 Mbps data rate far exceeds CAN's 1 Mbps requirement, providing ample margin. The integrated DC-DC converter powers the isolated side, reducing external components. The high CMTI ensures robust operation in the presence of motor noise and other transients. This makes it ideal for electric vehicle battery management systems and industrial motor drives.
موصى به
Isolated Power Supply for Sensors
The ADUM5412ARWZ integrates a DC-DC converter that can provide up to 500 mW of isolated power, making it ideal for powering isolated sensor circuits. This eliminates the need for a separate isolated power module, saving board space and cost. The device can be used to power isolated amplifiers, ADCs, or digital sensors while providing data isolation. Its wide supply range of 3.0V to 5.5V accommodates various system voltages, and the regulated output ensures stable sensor operation.
موصى به
Motor Drive Isolation
In motor drive applications, the ADUM5412ARWZ provides isolation between the control side and the power stage. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of high dv/dt transients from IGBT switching. The integrated DC-DC converter can power the gate driver circuits on the high-voltage side. With 150 Mbps data rate, it can handle high-speed PWM signals. This makes it suitable for industrial inverters, servo drives, and robotics.
موصى به
Medical Equipment Isolation
The ADUM5412ARWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2.5 kVrms isolation rating meets basic isolation requirements for many medical applications. The integrated DC-DC converter simplifies isolated power delivery, reducing leakage currents compared to external converters. The high data rate supports high-resolution imaging and monitoring systems. The device's small footprint and low component count make it ideal for portable medical devices.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADUM5412ARWZ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADUM5412BRSZ | ADUM5411ARWZ | ADUM5410ARWZ | ADUM5402ARWZ |
|---|---|---|---|---|---|
| Package | 24-SOIC-W (0.300") | 24-SSOP (0.209") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 | 4 | 3 | 2 | 4 |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 1 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Integrated DC-DC | Yes | Yes | Yes | Yes | Yes |
| Output Power | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs |
أبرز الفروقات
- Integrated DC-DC converter (مقابلISO7742DW)
- Higher data rate (مقابلADUM5402ARWZ)
- Higher CMTI (مقابلADUM5402ARWZ)
ملاحظات التصميم
For the ADUM5412ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kVrms isolation rating. The SOIC-W package has a minimum creepage of 7.6 mm, so ensure the PCB layout provides at least this distance between primary and secondary side traces. Use a slot or cutout under the device to increase creepage if needed.
The integrated DC-DC converter requires external capacitors for stability. Place a 1 µF capacitor on VDD1 and VDD2, and a 10 µF capacitor on VISO. Use low-ESR ceramic capacitors placed close to the pins. The converter can deliver up to 500 mW; ensure the input supply can handle the load current.
At maximum output power (500 mW), the ADUM5412ARWZ may dissipate significant heat. The SOIC-W package has a thermal resistance of approximately 60°C/W (typical). Ensure adequate copper area on the PCB for heat dissipation, and consider airflow if operating at high ambient temperatures. Monitor junction temperature to stay within the -40°C to +125°C range.
معلومات الامتثال
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
