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Analog Devices Inc. ADUM1401WTRWZ-RL
- Part No.:
- ADUM1401WTRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1401WTRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,896
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Product details
Overview
ADUM1401WTRWZ-RL from Analog Devices is a quad-channel, automotive-grade digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller and peripheral interfaces. It supports bidirectional communication at up to 90 Mbps (CRW grade), operates from 2.7 V to 5.5 V on both sides, and delivers <2 ns pulse width distortion and <2 ns channel-to-channel matching for precise timing-critical applications such as isolated SPI and RS-485 transceivers in EV battery management systems.
For engineers reviewing the ADUM1401WTRWZ-RL datasheet, ADUM1401WTRWZ-RL pinout, ADUM1401WTRWZ-RL application, or ADUM1401WTRWZ-RL equivalent, this page provides verified specifications including 25 kV/µs common-mode transient immunity, 125°C operation, UL 2500 Vrms isolation rating, and automotive qualification per AEC-Q100 - all critical for high-reliability industrial and automotive signal isolation design.
Technical Context
The ADUM1401WTRWZ-RL implements four independent unidirectional channels with inputs on Side 1 (VDD1) and outputs on Side 2 (VDD2), enabling asymmetric voltage translation (e.g., 3.3 V ↔ 5 V). Its monolithic air-core transformer coupling eliminates LED/photodiode aging and CTR drift, delivering stable propagation delay (18–32 ns typical at 90 Mbps) and guaranteed dc correctness via patented refresh circuitry even during input static conditions.
This variant belongs to the CRW speed grade and W-suffix automotive family, certified to AEC-Q100 Grade 1 (−40°C to +125°C ambient), with reinforced insulation per DIN EN IEC 60747-17 (VIORM = 560 V peak) and safety approvals including UL 1577, IEC/EN/CSA 62368-1, and IEC/CSA 60601-1 - confirming suitability for medical, industrial, and automotive high-isolation zones.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 V rms for 1 minute (UL 1577); VIORM = 560 V peak (DIN EN IEC 60747-17) |
| Max Data Rate | 90 Mbps NRZ - supports high-speed SPI, CAN FD interface isolation without timing violation |
| Pulse Width Distortion | ≤2 ns - ensures minimal duty cycle error in clock or PWM signal transmission across barrier |
| Channel-to-Channel Matching | ≤2 ns - enables synchronous multi-channel sampling in isolated ADC/DAC interfaces |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drive or power converter environments |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control applications |
| Supply Voltage Range | 2.7 V to 5.5 V on both sides - supports mixed-voltage system interfacing and level translation |
Pinout & Package
ADUM1401WTRWZ-RL uses a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance ≥8.3 mm, optimized for reinforced insulation and high-voltage spacing requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power for input-side logic and transformers; accepts 2.7–5.5 V |
| GND1 | Primary-side ground | Reference for input signals and VDD1; must be isolated from GND2 |
| INA, INB, INC, IND | Input channels A–D | CMOS-compatible digital inputs referenced to VDD1/GND1 |
| VDD2 | Secondary-side supply | Power for output-side logic; independent of VDD1 (supports level shift) |
| GND2 | Secondary-side ground | Reference for output signals and VDD2; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC, OUTD | Output channels A–D | CMOS outputs referenced to VDD2/GND2; drive 3.2 mA sink/source |
| OE | Output enable | Active-low control to place all outputs in high-impedance state (tPHZ/tPZH ≤ 8 ns) |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 - validated for use in EV powertrain, BMS, and ADAS subsystems |
| Bidirectional capability | Configurable unidirectional channel direction per side - supports full-duplex SPI isolation with separate TX/RX paths |
| DC correctness guarantee | Patented refresh circuit maintains output state indefinitely during static input or single-supply loss |
| Low-power operation | 1.8 mA total quiescent current at 3 V (VDD1) / 1.2 mA at 3 V (VDD2) - reduces thermal load in sealed enclosures |
| High-temp reliability | 125°C ambient operation with no derating - enables placement near power electronics without heatsinking |
Applications
| Isolated SPI Interface | Automotive Battery Management System (BMS) |
|---|---|
Use Scenario: Isolating SPI bus between MCU and isolated ADCs monitoring cell voltages in high-voltage battery packs. IC Role / Device Role / Timing Role: ADUM1401WTRWZ-RL provides four independent, low-skew channels to route SCLK, MOSI, MISO, and CS signals across 400–800 V potential barriers. Use Value: Enables precise, synchronized sampling of up to 16 cells with <2 ns channel matching and >25 kV/µs noise rejection during switching transients. |
Use Scenario: Signal isolation between high-side gate drivers and MCU in 48 V–800 V traction inverters. IC Role / Device Role / Timing Role: ADUM1401WTRWZ-RL isolates PWM inputs and fault feedback signals while maintaining sub-32 ns propagation delay for fast overcurrent response. Use Value: Guarantees safe, fail-operational behavior under EMI stress with AEC-Q100 qualification and reinforced insulation rated to 560 V peak. |
| Industrial RS-485 Transceiver Isolation | Medical Patient Monitoring Equipment |
Use Scenario: Galvanic isolation of half-duplex RS-485 differential lines in factory automation PLCs exposed to ground loops and surge events. IC Role / Device Role / Timing Role: ADUM1401WTRWZ-RL isolates DE/RE control and data lines (RX/TX) between UART and transceiver, supporting 20 Mbps operation. Use Value: Eliminates ground-loop-induced errors and meets IEC 61000-4-5 surge immunity requirements via 2500 Vrms isolation and >25 kV/µs CMTI. |
Use Scenario: Isolating analog front-end sensor signals and digital control lines in Class II medical devices requiring patient-connected circuits. IC Role / Device Role / Timing Role: ADUM1401WTRWZ-RL provides reinforced insulation between microcontroller and isolated ADC/DAC in ECG/EEG modules per IEC 60601-1. Use Value: Meets creepage/clearance and dielectric strength requirements for BF-rated applications with UL, CSA, and CQC safety certifications. |
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 |
|---|---|---|---|
| Si8641BB-B-IS | Capacitive isolation; 100 Mbps max; 2.5 kVrms isolation; no refresh circuit | Lacks dc correctness guarantee during static input; not AEC-Q100 qualified | Preferred for cost-sensitive consumer applications where continuous dc-level fidelity is noncritical |
| ISO6741QDWR | Capacitive isolation; 50 Mbps max; 5000 Vrms; integrated LDO; 125°C rated | Includes 3.3 V LDO on secondary side; higher isolation rating but lower speed than ADUM1401WTRWZ-RL | Selected when local secondary-side regulation is required and 90 Mbps is not needed |
Compared with Si8641BB-B-IS and ISO6741QDWR, ADUM1401WTRWZ-RL uniquely combines AEC-Q100 Grade 1 qualification, 90 Mbps speed, <2 ns timing precision, and patented dc-correct refresh - making it the only option qualified for automotive BMS and high-fidelity industrial control where both speed and static-state reliability are mandatory.
Availability
ADUM1401WTRWZ-RL is available at Aetrix Electronics and suitable for automotive battery management, industrial RS-485 networks, isolated SPI data converters, and medical patient-monitoring equipment requiring stable component supply across extended product lifecycles.
Supply support for ADUM1401WTRWZ-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, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADuM1401W series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, high-speed galvanic isolation in safety-critical automotive and industrial systems where optocoupler limitations-aging, CTR variation, and temperature sensitivity-must be eliminated.
FAQ
What is the maximum data rate supported by ADUM1401WTRWZ-RL?
ADUM1401WTRWZ-RL supports a maximum data rate of 90 Mbps (NRZ) as specified in the CRW speed grade. This is confirmed in Table 1 of Rev. M datasheet under "Maximum Data Rate" for ADuM1401CRW variants. The device maintains <2 ns pulse width distortion at this rate, enabling reliable high-speed SPI and digital interface isolation without bit errors.
Does ADUM1401WTRWZ-RL support level translation between different supply voltages?
Yes, ADUM1401WTRWZ-RL supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 2.7 V to 5.5 V, allowing configurations such as 3.3 V ↔ 5 V or 2.7 V ↔ 5.5 V. This is explicitly stated in the General Description and Electrical Characteristics tables for mixed 3 V/5 V operation, enabling flexible interface bridging across voltage domains.
Is ADUM1401WTRWZ-RL qualified for automotive applications?
Yes, ADUM1401WTRWZ-RL carries the "W" suffix denoting automotive qualification per AEC-Q100 Grade 1 (−40°C to +125°C ambient). It is listed in the Automotive Products section of the datasheet and certified to safety standards including IEC/CSA 60601-1 and DIN EN IEC 60747-17 - confirming suitability for EV powertrain and BMS deployments.
What safety certifications does ADUM1401WTRWZ-RL hold?
ADUM1401WTRWZ-RL holds UL 1577 (2500 Vrms for 1 minute), DIN EN IEC 60747-17 (VIORM = 560 V peak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1. These are documented in the Regulatory Information and Insulation and Safety Related Specifications sections of Rev. M datasheet.
How does the refresh feature of ADUM1401WTRWZ-RL ensure DC correctness?
The ADUM1401WTRWZ-RL incorporates a patented internal refresh circuit that periodically samples and retransmits the last valid input state across the isolation barrier - ensuring output remains stable even during prolonged static input conditions or if one side loses power. This guarantees dc correctness without external watchdog circuitry, as detailed in the General Description and Applications Information sections.
ADUM1401WTRWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 32ns, 32ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1401WTRWZ-RL FAQ
1.How can I place an order for ADUM1401WTRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1401WTRWZ-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 ADUM1401WTRWZ-RL reliable?
The price and inventory of ADUM1401WTRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1401WTRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1401WTRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1401WTRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1401WTRWZ-RL?
ADUM1401WTRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1401WTRWZ-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 ADUM1401WTRWZ-RL?
For technical support, including ADUM1401WTRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1401WTRWZ-RL requirements.
6.How does Aetrix verify that ADUM1401WTRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1401WTRWZ-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 ADUM1401WTRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1401WTRWZ-RL?
All ADUM1401WTRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1401WTRWZ-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 ADUM1401WTRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1401WTRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1401WTRWZ-RL Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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