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Analog Devices Inc. ADUM6404ARWZ-RL
- Part No.:
- ADUM6404ARWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6404ARWZ-RL.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:737
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Product details
Overview
ADUM6404ARWZ-RL from Analog Devices is a quad-channel digital isolator with integrated isoPower® DC-to-DC converter, delivering up to 400 mW isolated output power at 5 V or 3.3 V, supporting 25 Mbps NRZ data rates, and providing 5 kV rms reinforced isolation in a 16-lead SOIC wide-body (RW-16) package for medical and industrial power supply gate drive applications.
For engineers reviewing the ADUM6404ARWZ-RL datasheet, ADUM6404ARWZ-RL pinout, ADUM6404ARWZ-RL application, or ADUM6404ARWZ-RL equivalent, this device serves as a self-contained isolation solution eliminating external isolated DC/DC converters while meeting IEC 60601-1, UL 1577, and VDE V 0884-10 safety standards for high-reliability signal and power transfer across galvanic barriers.
Technical Context
The ADUM6404ARWZ-RL integrates four unidirectional iCoupler® isolation channels with Schmitt-triggered inputs and an on-chip transformer-based isoPower DC-to-DC converter operating at 625 kHz PWM frequency and 180 MHz oscillator frequency. It supports three input/output voltage configurations: 5 V/5 V (400 mW), 5 V/3.3 V (330 mW), and 3.3 V/3.3 V (132 mW), with undervoltage lockout thresholds at 2.4 V (falling) and 2.7 V (rising) on all supplies.
Its isolation barrier provides 846 V peak working voltage (VIORM), 5000 V rms withstand rating per UL 1577, and >25 kV/μs common-mode transient immunity. The RW-16 package delivers 7.6 mm creepage and 8.0 mm clearance, certified for reinforced insulation under DIN V VDE V 0884-10 and basic insulation under IEC 60747-5-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 25 Mbps NRZ - supports high-speed serial interfaces like RS-485 without timing degradation |
| Isolation Voltage | 5000 V rms for 1 minute - meets medical and industrial safety requirements for patient-connected equipment |
| Output Power | Up to 400 mW at 5 V - sufficient to power downstream isolated logic, ADCs, or gate drivers without auxiliary supply |
| Propagation Delay | 45–65 ns (C grade) - enables precise timing-critical control loops in motor drives and power converters |
| Common-Mode Immunity | >25 kV/μs - maintains signal integrity in noisy AC/DC power supply start-up and switching environments |
| Operating Temperature | −40°C to +105°C - qualified for extended industrial and automotive under-hood use cases |
| Package | 16-lead SOIC wide body (RW-16) - standard footprint with 7.6 mm creepage for IPC-compliant PCB layout |
Pinout & Package
ADUM6404ARWZ-RL uses a 16-lead SOIC wide-body (RW-16) package with gull-wing leads, 1.27 mm pitch, and 10.3 mm × 7.5 mm body size. Input-side pins (1–8) and output-side pins (9–16) are electrically isolated groups; VSEL (Pin 16) selects output voltage (VISO = VDD1 if tied to VDD1; 3.3 V if tied to GNDISO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | Primary-side power supply | 5 V or 3.3 V input for isolator core and DC-DC primary; powers input-side logic and oscillator |
| GND1 (Pin 2) | Primary-side ground reference | Return path for VDD1; must be separated from GNDISO by ≥8 mm clearance |
| VIA (Pin 3) | Input A channel | Unidirectional data input driving isolated output VOA; Schmitt-triggered for noise immunity |
| VIB (Pin 4) | Input B channel | Unidirectional data input driving isolated output VOB; independent of other channels |
| VIC (Pin 5) | Input C channel | Unidirectional data input driving isolated output VOC; supports full 25 Mbps operation |
| VID (Pin 6) | Input D channel | Unidirectional data input driving isolated output VOD; all four inputs share same VDD1/GND1 domain |
| VSEL (Pin 16) | Output voltage select | Tie to VDD1 for 5 V VISO; tie to GNDISO for 3.3 V VISO - configures DC-DC regulation point |
| VISO (Pin 9) | Secondary-side regulated output | 5 V or 3.3 V isolated supply for output-side logic; max 80 mA load at 5 V/5 V mode |
| GNDISO (Pin 10) | Secondary-side ground reference | Return path for VISO; forms isolated domain with Pins 9, 11–15; must be separated from GND1 |
| VOA (Pin 11) | Output A channel | Isolated output driven by VIA; logic levels referenced to VISO/GNDISO; 4 mA drive capability |
| VOB (Pin 12) | Output B channel | Isolated output driven by VIB; matches VOA timing within 6 ns codirectional skew (tPSKCD) |
| VOC (Pin 13) | Output C channel | Isolated output driven by VIC; supports simultaneous 25 Mbps operation across all four channels |
| VOD (Pin 14) | Output D channel | Isolated output driven by VID; fully independent timing; no shared internal resources with other outputs |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower DC-DC converter | Eliminates need for external isolated power supply, reducing BOM count and board area in space-constrained designs |
| Reinforced 5 kV rms isolation | Meets IEC 60601-1 (250 V rms) and IEC 60950-1 (400 V rms) for medical and industrial end-equipment certification |
| 25 Mbps data rate per channel | Supports high-speed digital interfaces including isolated SPI, UART, and digital encoder feedback without protocol translation |
| Schmitt-triggered inputs | Provides 300 mV hysteresis to reject noise on long traces or in EMI-heavy environments like motor drives |
| 105°C maximum operating temperature | Enables deployment in hot ambient locations such as power supply enclosures and industrial PLC backplanes |
Applications
| RS-485 Transceiver Isolation | Medical Patient Monitoring |
|---|---|
Use Scenario: Isolating half-duplex RS-485 transceivers in industrial automation networks exposed to ground potential differences and lightning-induced surges. IC Role / Device Role / Timing Role: Provides bidirectional signal isolation (TX/RX lines) and isolated 3.3 V power for transceiver IC, enabling robust communication over 1200 m cable runs. Use Value: Eliminates ground loops and prevents damage from ±15 kV ESD or 4 kV surge events while maintaining 25 Mbps throughput for real-time control data. |
Use Scenario: Isolating analog front-end sensor signals (ECG, SpO₂) and digital control paths in Class II patient-connected devices requiring 250 V rms working voltage compliance. IC Role / Device Role / Timing Role: Delivers four independent isolation channels: two for sensor ADC interface, one for microcontroller reset signaling, and one for isolated LED status indication. Use Value: Meets IEC 60601-1 creepage/clearance and VIORM = 846 V peak requirements without additional isolation components, accelerating regulatory approval. |
| AC/DC Power Supply Gate Drive | Isolated Sensor Interface |
Use Scenario: Providing start-up bias and high-side gate drive signals for LLC resonant controllers in offline SMPS where primary-side control IC requires isolated auxiliary power. IC Role / Device Role / Timing Role: Supplies regulated 5 V/40 mA isolated power to controller IC while transmitting PWM enable and fault signals across the barrier. Use Value: Replaces discrete transformer + LDO solution, reducing component count by 7 parts and improving startup reliability under brownout conditions. |
Use Scenario: Interfacing isolated current/voltage sensors (e.g., shunt-based or Hall-effect) to microcontrollers in motor inverters where phase-leg potentials swing ±400 V. IC Role / Device Role / Timing Role: Transmits digitized sensor data and synchronization pulses across isolation barrier while powering isolated sigma-delta modulator. Use Value: Maintains <10 ns channel-to-channel skew for synchronized sampling across three phases, critical for accurate field-oriented control algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel isolated power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6404CRWZ-RL | Same pinout and functionality but rated for 25 Mbps only (C grade); ADUM6404ARWZ-RL supports both 1 Mbps and 25 Mbps modes | Lower cost for fixed 25 Mbps use cases; not suitable for systems requiring guaranteed 1 Mbps operation at temperature extremes | Select ADUM6404ARWZ-RL when guaranteed operation down to −40°C at 1 Mbps is required, or when design flexibility across data rates is needed. |
| SI8642ED-B-IS | No integrated DC-DC; requires external isolated supply; 5 kV rms isolation; 150 Mbps data rate; different pinout (16-pin QSOP) | Better for high-speed digital isolation where external power is already available; unsuitable for space-constrained designs needing self-powered isolation | Choose SI8642ED-B-IS only when higher data rate (>25 Mbps) is mandatory and isolated auxiliary power is provided elsewhere in the system. |
Compared with ADUM6404CRWZ-RL, the ADUM6404ARWZ-RL offers guaranteed 1 Mbps operation across full temperature range and broader voltage configuration flexibility; compared with SI8642ED-B-IS, it eliminates external DC-DC complexity but trades off maximum data rate and package compatibility.
Availability
ADUM6404ARWZ-RL is available at Aetrix Electronics and suitable for medical instrumentation, industrial motor drives, and AC/DC power supply designs requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM6404ARWZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The ADuM640x family was designed to replace discrete isolation + DC/DC solutions in low-power isolated systems, targeting medical, industrial, and energy infrastructure applications where safety certification, board space, and design simplicity are critical.
FAQ
What is the maximum output power capability of the ADUM6404ARWZ-RL?
The ADUM6404ARWZ-RL delivers up to 400 mW of regulated isolated output power when configured for 5 V input and 5 V output. At 5 V input / 3.3 V output, it provides 330 mW; at 3.3 V input / 3.3 V output, it delivers 132 mW. These values are specified in Table 1 of the ADUM6404ARWZ-RL datasheet and reflect continuous operation under recommended thermal conditions.
Does the ADUM6404ARWZ-RL require external components for its DC-DC converter to operate?
Yes, the ADUM6404ARWZ-RL requires two external 0.1 μF ceramic capacitors (CBO) placed close to Pins 9 (VISO) and 10 (GNDISO), plus bulk capacitance (e.g., 10 μF tantalum or aluminum electrolytic) on the VISO rail. No inductors or transformers are needed-the isoPower converter is fully integrated, but proper decoupling is essential for ripple suppression and stability per AN-0971 layout guidelines.
What safety certifications apply specifically to the ADUM6404ARWZ-RL in the RW-16 package?
The ADUM6404ARWZ-RL in the RW-16 package is UL recognized per UL 1577 (5000 V rms for 1 minute), certified to IEC 60747-5-2 (VDE 0884 Part 2):2003-01 for basic insulation, and approved by CQC to GB4943.1-2011. It achieves 380 V rms maximum working voltage under CSA/IEC 60950-1 and 125 V rms under IEC 60601-1 for reinforced insulation.
How does the VSEL pin configure the output voltage of the ADUM6404ARWZ-RL?
The VSEL pin (Pin 16) on the ADUM6404ARWZ-RL sets the regulated isolated output voltage: tying VSEL to VDD1 configures VISO for 5.0 V output; tying VSEL to GNDISO configures VISO for 3.3 V output. This selection is active during power-up and determines the DC-DC converter's regulation setpoint-no resistors or external programming are required.
Can the ADUM6404ARWZ-RL support bidirectional data transmission on a single channel?
No, the ADUM6404ARWZ-RL provides four unidirectional isolation channels only: VIA→VOA, VIB→VOB, VIC→VOC, and VID→VOD. Each channel is hardwired for one direction of signal flow. For bidirectional protocols like I²C, external logic or a separate isolator pair (e.g., ADUM1250) is required-ADUM6404ARWZ-RL does not support automatic direction sensing or configurable channel direction.
ADUM6404ARWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- IsoPower®, iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 0/4
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM6404ARWZ-RL FAQ
1.How can I place an order for ADUM6404ARWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6404ARWZ-RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADUM6404ARWZ-RL reliable?
The price and inventory of ADUM6404ARWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6404ARWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM6404ARWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6404ARWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6404ARWZ-RL?
ADUM6404ARWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6404ARWZ-RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADUM6404ARWZ-RL?
For technical support, including ADUM6404ARWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6404ARWZ-RL requirements.
6.How does Aetrix verify that ADUM6404ARWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM6404ARWZ-RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADUM6404ARWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM6404ARWZ-RL?
All ADUM6404ARWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6404ARWZ-RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADUM6404ARWZ-RL part is unused and in its original packaging.
Return procedure for ADUM6404ARWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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