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Analog Devices Inc. ADUM4401CRWZ
- Part No.:
- ADUM4401CRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4401CRWZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:486
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Product details
Overview
ADUM4401CRWZ from Analog Devices is a 5 kVRMS quad-channel digital isolator using iCoupler® transformer-based isolation, providing bidirectional signal transmission across an isolated barrier with 90 Mbps data rate, <2 ns pulse width distortion, and 3.3 V/5 V level translation capability. It operates from −40°C to +105°C and supports medical, motor drive, and industrial power supply isolation.
For engineers reviewing the ADUM4401CRWZ datasheet, ADUM4401CRWZ pinout, ADUM4401CRWZ application, or ADUM4401CRWZ equivalent, this page delivers verified specifications, safety-certified insulation parameters, channel configuration details, and real-world design implications for high-reliability isolated communication interfaces.
Technical Context
The ADUM4401CRWZ implements four independent unidirectional channels (A/B/C on Side 1 input → Side 2 output; D on Side 2 input → Side 1 output), enabling asymmetric bidirectional data flow. Its monolithic air-core transformer architecture eliminates LED aging and timing drift inherent in optocouplers.
It features integrated refresh circuitry ensuring DC correctness during idle periods and power transitions, plus input glitch filtering for noise immunity. The device supports mixed-supply operation (3.3 V/5 V on opposite sides) and maintains <2 ns channel-to-channel matching at 90 Mbps under C-grade specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 90 Mbps (NRZ) - enables high-speed serial bus isolation (e.g., SPI, RS-485 control lines) without timing bottlenecks. |
| Isolation Voltage | 5000 VRMS for 1 minute - certified reinforced insulation per UL 1577, IEC/EN/CSA 62368-1, and IEC/CSA 60601-1 (2 MOPP). |
| Pulse Width Distortion | ≤2 ns maximum - preserves duty cycle integrity critical for clock forwarding and PWM signal isolation. |
| Common-Mode Transient Immunity | >25 kV/µs - sustains reliable operation in noisy motor drive or power supply environments with fast switching transients. |
| Supply Range | 3.0 V to 5.5 V per side - allows direct interfacing with both 3.3 V microcontrollers and 5 V legacy logic, including level translation. |
| Propagation Delay Skew | ≤2 ns (C grade) - ensures deterministic timing alignment across all four channels for synchronized control signals. |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive subsystems and industrial motor control enclosures. |
Pinout & Package
ADUM4401CRWZ uses a 16-lead SOIC wide-body package (RW-16) with 7.8 mm minimum creepage and clearance, rated for reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17). Pin 1 is marked with a dot; pins 1–8 form Side 1 (input side), pins 9–16 form Side 2 (output side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDD1 / VDD2 | Independent 3.0–5.5 V supplies for isolated sides - enables galvanic separation and voltage translation. |
| 2, 8, 9, 15 | GND1 / GND2 | Dedicated ground references per side - prevents ground loop coupling and maintains isolation integrity. |
| 3–5, 11–14 | VIA–VIC / VOA–VOB | Three unidirectional inputs (Side 1) and three outputs (Side 2) - forms primary forward data path (A/B/C). |
| 6, 11 | VOD / VID | One reverse-direction channel (D) - supports bidirectional protocols like half-duplex UART or I²C clock stretching. |
| 7, 10 | VE1 / VE2 | Active-high output enable controls - allows dynamic channel disabling to reduce EMI or enter low-power states. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED degradation and lifetime limitations of optocouplers; achieves >50-year insulation lifetime per IEC 60747-17. |
| Output enable function | Allows hardware-controlled tri-state of all outputs on each side - essential for bus arbitration and hot-swap compatibility. |
| Patented refresh circuitry | Maintains correct DC output state during prolonged input inactivity or power-up/power-down sequences - no external watchdog required. |
| Input glitch filter | Rejects sub-10 ns noise pulses - prevents false triggering in electrically harsh environments (e.g., variable frequency drives). |
| System-level ESD enhancement | Designed to meet IEC 61000-4-x standards (ESD/burst/surge); board layout strongly influences final system-level performance. |
Applications
| Medical Patient Monitoring | Industrial Motor Drives |
|---|---|
Use Scenario: Isolating analog front-end sensor signals and digital control commands between patient-connected circuits and host MCU. IC Role / Device Role / Timing Role: Provides reinforced 2 MOPP isolation for IEC 60601-1 compliance while transmitting ADC data and PWM gate signals. Use Value: Enables safe, high-fidelity signal acquisition without compromising real-time responsiveness (<32 ns max propagation delay at 10 Mbps). |
Use Scenario: Separating microcontroller GPIOs from high-voltage IGBT/SiC gate drivers and current sensing feedback paths. IC Role / Device Role / Timing Role: Delivers precise, skew-matched timing for multi-phase PWM generation and fault reporting across isolation barrier. Use Value: Maintains <2 ns pulse width distortion to prevent shoot-through in bridge-leg configurations under fast switching conditions. |
| Renewable Energy Inverters | Programmable Logic Controllers |
Use Scenario: Isolating DC-link voltage monitoring, grid synchronization signals, and protection trip commands in solar/wind inverters. IC Role / Device Role / Timing Role: Acts as bidirectional interface between low-voltage control logic and high-side gate driver ICs with transient immunity >25 kV/µs. Use Value: Sustains reliable communication during lightning-induced surges and fast dv/dt transients common in PV string combiners. |
Use Scenario: Interfacing field I/O modules (digital input/output, analog input) with backplane CPU via isolated serial buses (e.g., isolated RS-485). IC Role / Device Role / Timing Role: Provides four independent channels for status reporting, command execution, and diagnostics across functional safety boundaries. Use Value: Supports mixed 3.3 V/5 V operation to interface legacy 5 V sensors and modern 3.3 V processors without external level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8440AB-B-IS | Capacitive isolation; 5 kVRMS; 150 Mbps max; no integrated refresh; higher quiescent current (1.2 mA/ch @ 0 Mbps, 3.3 V) | Lacks DC correctness guarantee during long idle periods; less suitable for infrequent control signaling with strict state retention. | Prefer when maximum data rate >90 Mbps is required and refresh functionality is not critical. |
| ISO6741-Q1 | Capacitive isolation; AEC-Q100 qualified; 5000 VRMS; 50 Mbps max; 1.8–5.5 V supply; no output enable pins | No hardware output disable; limited to automotive temperature range (−40°C to +125°C); lower speed ceiling. | Choose for automotive ECUs where AEC-Q100 qualification is mandatory and 50 Mbps suffices. |
Compared with SI8440AB-B-IS and ISO6741-Q1, ADUM4401CRWZ uniquely combines guaranteed DC correctness via refresh, hardware output enable per side, and 90 Mbps performance within a single 16-pin SOIC package-making it optimal for industrial and medical systems requiring robust state retention and flexible channel control.
Availability
ADUM4401CRWZ is available at Aetrix Electronics and suitable for medical equipment, motor drives, and industrial power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM4401CRWZ 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, serving precision instrumentation, industrial automation, and healthcare markets.
ADUM4401CRWZ belongs to the ADuM440x family of iCoupler® digital isolators, engineered specifically for high-reliability, high-speed galvanic isolation in safety-critical systems demanding regulatory compliance and long-term stability.
FAQ
What is the maximum data rate supported by ADUM4401CRWZ?
ADUM4401CRWZ supports a maximum data rate of 90 Mbps in NRZ format, validated under C-grade specifications with ≤2 ns pulse width distortion. This enables isolation of high-speed interfaces such as SPI clock lines, encoder feedback, and digital power control loops without introducing timing jitter or duty cycle errors that could compromise system stability.
Does ADUM4401CRWZ support level translation between 3.3 V and 5 V domains?
Yes, ADUM4401CRWZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently at 3.3 V or 5 V (3.0–5.5 V range), allowing seamless interfacing between 3.3 V microcontrollers and 5 V peripheral logic. The device maintains full timing specifications-including <2 ns PWD-even in mixed-supply configurations per Tables 7 and 10 of the datasheet.
How does the refresh feature in ADUM4401CRWZ ensure DC correctness?
The ADUM4401CRWZ incorporates patented refresh circuitry that periodically samples and retransmits the last valid input state across the isolation barrier during extended periods of no logic transition. This guarantees correct DC output levels during power-up, power-down, and static signal conditions-eliminating the need for external watchdog timers or protocol-layer keep-alive mechanisms in safety-critical applications.
What safety certifications apply to ADUM4401CRWZ?
ADUM4401CRWZ holds UL 1577 (5000 VRMS, 1 min), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) approvals. Its RW-16 package is rated for reinforced insulation up to 645 VPEAK and meets creepage/clearance requirements for pollution degree 2 and altitudes ≤2000 m.
Can ADUM4401CRWZ be used in bidirectional communication protocols like I²C?
ADUM4401CRWZ supports asymmetric bidirectional operation: three channels (A/B/C) transmit from Side 1 to Side 2, while channel D transmits from Side 2 to Side 1. This configuration accommodates half-duplex protocols such as I²C when combined with external pull-up resistors and proper bus arbitration-though dedicated I²C isolators (e.g., ADUM1250) offer optimized rise-time control for full compliance.
ADUM4401CRWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 90Mbps
- Propagation Delay tpLH / tpHL (Max):
- 32ns, 32ns
- Pulse Width Distortion (Max):
- 2ns
- 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
ADUM4401CRWZ FAQ
1.How can I place an order for ADUM4401CRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4401CRWZ 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 ADUM4401CRWZ reliable?
The price and inventory of ADUM4401CRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4401CRWZ is usually 5 days.
3.What payment methods are accepted for ADUM4401CRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4401CRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4401CRWZ?
ADUM4401CRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4401CRWZ 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 ADUM4401CRWZ?
For technical support, including ADUM4401CRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4401CRWZ requirements.
6.How does Aetrix verify that ADUM4401CRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM4401CRWZ 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 ADUM4401CRWZ meets industry standards.
7.What is the process for return or replacement of ADUM4401CRWZ?
All ADUM4401CRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4401CRWZ, 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 ADUM4401CRWZ part is unused and in its original packaging.
Return procedure for ADUM4401CRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4401CRWZ Tags
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