ADUM5411ARWZ-RL7 - 4-Ch Isolator w/ DC-DC | Analog Devices
MPN: ADUM5411ARWZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.33 | $9.33 |
| 10 | $8.5 | $85.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.4 | $5,400.00 |
ADUM5411ARWZ-RL7 Overview
Digital isolators are components that transfer digital signals across an isolation barrier while preventing unwanted DC and noise from passing. They are essential in applications requiring galvanic isolation for safety, noise immunity, or ground loop elimination. The ADUM5411 integrates the isolation barrier and power conversion, making it a complete solution for isolated data and power transfer. This integration is part of the broader category of interface ICs, specifically digital isolators, which are critical in industrial, medical, and communication systems.
Key features of the ADUM5411ARWZ-RL7 include a data rate of 150 Mbps, a common-mode transient immunity (CMTI) of 75 kV/µs, and an isolation voltage rating of 2500 Vrms. The integrated DC-to-DC converter provides up to 500 mW of isolated output power, with an adjustable output voltage from 3.15 V to 5.25 V. The device operates over a wide temperature range of -40°C to +125°C, making it suitable for harsh environments. It also features low propagation delay and high noise immunity, ensuring reliable signal integrity.
Technically, the ADUM5411 uses Analog Devices' iCoupler technology, which employs chip-scale transformers to achieve isolation. This technology offers advantages over optocouplers, including higher data rates, lower power consumption, and better reliability. The integrated DC-to-DC converter uses a push-pull architecture to generate isolated power, with an efficiency of up to 33% at full load. The device also includes a soft-start function to limit inrush current during power-up.
Typical applications for the ADUM5411ARWZ-RL7 include isolated SPI interfaces, industrial field buses, medical equipment, and power supply control. Its high data rate and CMTI make it ideal for applications requiring robust communication in noisy environments. The integrated power converter simplifies the design of isolated power supplies, reducing component count and board area.
When designing with this device, it is important to ensure proper PCB layout to minimize parasitic capacitance and maintain isolation performance. The input and output power supplies should be decoupled with appropriate capacitors, and the isolation barrier should be kept clear of copper traces to maintain the specified isolation voltage.
Drop-in alternatives for ADUM5411ARWZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADUM5411ARWZ-RL7 (same form factor and footprint) — differing in Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADUM5410ARWZ-RL7
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.16 / Unit
View Datasheet →ADUM5412ARWZ-RL7
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.5 / Unit
View Datasheet →ADUM5411ARWZ-RL7 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| Data Rate | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs |
| Integrated DC-DC Converter | Yes |
| Isolated Output Power | 500 mW |
| Output Voltage Range (Isolated) | 3.15 V to 5.25 V |
| Input Voltage Range | 3.0 V to 5.5 V |
| Operating Temperature Range | -40°C to +125°C |
| Package Type | 24-SOIC-W (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| REACH Status | Compliant |
ADUM5411ARWZ-RL7 Pin Configuration
| Pin 1 | VDD1 — Input supply voltage (3.0V to 5.5V) |
| Pin 2 | GND1 — Input ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VOA — Output channel A |
| Pin 5 | VIB — Input channel B |
| Pin 6 | VOB — Output channel B |
| Pin 7 | VIC — Input channel C |
| Pin 8 | VOC — Output channel C |
| Pin 9 | VID — Input channel D |
| Pin 10 | VOD — Output channel D |
| Pin 11 | GND1 — Input ground |
| Pin 12 | VDD1 — Input supply voltage |
| Pin 13 | VDD2 — Isolated output supply voltage (3.15V to 5.25V) |
| Pin 14 | GND2 — Isolated ground |
| Pin 15 | VOD — Output channel D |
| Pin 16 | VID — Input channel D |
| Pin 17 | VOC — Output channel C |
| Pin 18 | VIC — Input channel C |
| Pin 19 | VOB — Output channel B |
| Pin 20 | VIB — Input channel B |
| Pin 21 | VOA — Output channel A |
| Pin 22 | VIA — Input channel A |
| Pin 23 | GND2 — Isolated ground |
| Pin 24 | VDD2 — Isolated output supply voltage |
Typical Applications
ADUM5411ARWZ-RL7 is suitable for 6 applications: Isolated SPI Interface, Industrial Fieldbus, Medical Equipment, Power Supply Control, Isolated RS-485 Communication, Data Acquisition Systems.
Isolated SPI Interface
The ADUM5411ARWZ-RL7 provides isolated SPI communication with integrated power, simplifying design. Its 150 Mbps data rate supports high-speed SPI clocks, and the 2500 Vrms isolation protects sensitive MCUs from high-voltage transients. The integrated DC-DC converter powers the isolated side, eliminating the need for a separate supply. This reduces component count and board space, making it ideal for industrial sensors and motor drives where galvanic isolation is required for safety and noise immunity.
Recommended
Industrial Fieldbus
In industrial fieldbus systems like Profibus or Modbus, the ADUM5411ARWZ-RL7 isolates the controller from the bus transceiver, preventing ground loops and protecting against voltage spikes. Its high CMTI of 75 kV/µs ensures reliable data transmission in noisy environments. The integrated DC-DC converter powers the bus side, simplifying power supply design. The wide temperature range of -40°C to +125°C makes it suitable for factory floor conditions.
Recommended
Medical Equipment
The ADUM5411ARWZ-RL7 is used in medical devices to provide patient isolation, ensuring safety from electrical shock. Its 2500 Vrms isolation meets medical safety standards, and the integrated DC-DC converter powers isolated sensors or data acquisition circuits. The low power consumption and small footprint are beneficial for portable devices. The device's high reliability and long-term stability are critical for medical applications.
Recommended
Power Supply Control
In isolated power supplies, the ADUM5411ARWZ-RL7 transfers PWM control signals across the isolation barrier while providing isolated power for the secondary-side controller. Its high data rate and CMTI ensure accurate signal transmission, and the integrated DC-DC converter eliminates the need for a separate bias supply. This simplifies the design of flyback or forward converters, improving efficiency and reducing component count.
Recommended
Isolated RS-485 Communication
The ADUM5411ARWZ-RL7 isolates RS-485 transceivers from the controller, providing galvanic isolation for long-distance communication. Its 150 Mbps data rate exceeds RS-485 requirements, and the integrated DC-DC converter powers the transceiver side. The high CMTI ensures reliable operation in electrically noisy environments. This solution is ideal for building automation, industrial networking, and remote monitoring systems.
Recommended
Data Acquisition Systems
The ADUM5411ARWZ-RL7 isolates data acquisition circuits from the main controller, preventing ground loops and reducing noise. Its integrated DC-DC converter powers the isolated analog front-end, ensuring clean power for precision measurements. The high data rate supports fast sampling, and the 2500 Vrms isolation protects sensitive electronics from high-voltage transients. This is ideal for industrial monitoring, test equipment, and scientific instruments.
Recommended
Recommended Products Summary
Engineering reference data for ADUM5411ARWZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADUM5410ARWZ-RL7 | ADUM5412ARWZ-RL7 | ADUM5411BRSZ-RL7 |
|---|---|---|---|---|
| Package | 24-SOIC-W | 24-SOIC-W | 24-SOIC-W | 24-SSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 | 4 | 4 | 4 |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs |
| Integrated DC-DC | Yes | Yes | Yes | Yes |
| Output Power | 500 mW | 500 mW | 500 mW | 500 mW |
Key Differentiators
- Integrated DC-DC converter (vs ISO7742FDBQR)
- Higher data rate (vs ISO7742FDBQR)
- Higher CMTI (vs ISO7742FDBQR)
Design Notes
For optimal isolation performance, maintain a clearance of at least 8 mm between the input and output ground planes on the PCB. Avoid routing any copper traces or vias under the isolation barrier. Use a solid ground plane on each side and connect them only through the device's internal isolation barrier. This minimizes parasitic capacitance and ensures the specified 2500 Vrms isolation voltage is maintained.
Decouple the input supply (VDD1) with a 10 µF ceramic capacitor placed as close as possible to the VDD1 and GND1 pins. Similarly, decouple the isolated output (VDD2) with a 10 µF ceramic capacitor. The integrated DC-DC converter can cause switching noise; adding a 0.1 µF capacitor in parallel helps filter high-frequency noise. Ensure the input supply can provide sufficient current for the output load and the device's own consumption.
The ADUM5411ARWZ-RL7 dissipates power internally due to the DC-DC converter and signal transmission. At maximum load (500 mW output), the power dissipation can be significant. Ensure adequate thermal relief by providing copper pours on the PCB and, if necessary, a thermal via array under the device. The operating temperature range is -40°C to +125°C, so verify that the junction temperature stays within limits under worst-case conditions.
Compliance Information
RoHS and REACH compliance confirmed from distributor data. AEC-Q100 not applicable for this non-automotive part.
