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Analog Devices Inc. ADUM1401ARWZ-RL
- Part No.:
- ADUM1401ARWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1401ARWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,159
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Product details
Overview
ADUM1401ARWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing galvanic signal separation across a 2500 Vrms reinforced barrier. It supports bidirectional communication with 3 V/5 V level translation, operates from 2.7 V to 5.5 V on both sides, and delivers up to 90 Mbps data rate with ≤2 ns pulse width distortion - ideal for isolated SPI, RS-485, and industrial fieldbus interfaces.
For engineers reviewing the ADUM1401ARWZ-RL datasheet, ADUM1401ARWZ-RL pinout, ADUM1401ARWZ-RL application, or ADUM1401ARWZ-RL equivalent, this device is selected for high-speed, low-power, thermally robust multichannel isolation in mixed-voltage systems requiring precise timing, high CMTI (>25 kV/µs), and automotive-grade reliability (AEC-Q100 qualified variants available).
Technical Context
The ADUM1401ARWZ-RL implements four independent unidirectional channels (2 forward, 2 reverse) using monolithic air-core transformers and integrated CMOS interface circuitry. Its architecture eliminates optocoupler limitations - no LED aging, no current transfer ratio drift, and no external driver components required.
It features a patented refresh circuit ensuring DC-correct output states during idle periods or single-supply operation, and supports asymmetric supply configurations (e.g., 5 V primary / 3 V secondary) while maintaining full logic threshold compatibility and <2 ns channel-to-channel skew at 90 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 Vrms for 1 minute (UL 1577); VIORM = 560 Vpeak (DIN EN IEC 60747-17) |
| Max Data Rate | 90 Mbps (CRW grade) - supports high-speed serial protocols like SPI clocked up to 45 MHz |
| Pulse Width Distortion | ≤2 ns - ensures minimal duty-cycle degradation in PWM or clock transmission |
| Channel-to-Channel Matching | ≤2 ns - critical for time-sensitive differential signaling and synchronized sampling |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drives and power converter environments |
| Supply Voltage Range | 2.7 V to 5.5 V per side - enables 3.3 V ↔ 5 V level translation without external logic buffers |
| Operating Temperature | −40°C to +125°C - suitable for under-hood automotive and industrial control applications |
Pinout & Package
ADUM1401ARWZ-RL is housed in a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length), RoHS-compliant, with creepage/clearance ≥8.3 mm per UL and IEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies input-side logic (pins A1–A4, EN1); accepts 2.7–5.5 V |
| GND1 | Primary-side ground reference | Return path for VDD1; must be isolated from GND2 |
| A1–A4 | Input channels (side 1) | Logic inputs referenced to VDD1/GND1; drive internal transformers |
| VDD2 | Secondary-side power supply | Supplies output-side logic (pins B1–B4, EN2); accepts 2.7–5.5 V |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1 |
| B1–B4 | Output channels (side 2) | CMOS-compatible outputs referenced to VDD2/GND2; drive external loads |
| EN1, EN2 | Output enable controls | Active-low enables; tri-states Bx outputs when asserted (EN1/EN2 = LOW) |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Replaces optocouplers with monolithic air-core transformers - no LED degradation, no CTR drift, >50-year lifetime |
| DC-correct refresh circuit | Maintains valid output state during prolonged input inactivity or loss of one supply rail |
| Asymmetric voltage operation | Supports 3 V ↔ 5 V level translation across barrier - eliminates external level shifters in mixed-voltage systems |
| Low dynamic power | 0.19 mA/Mbps (input) + 0.05 mA/Mbps (output) - reduces thermal load in dense PCB layouts |
| High-temp reliability | Specified up to +125°C ambient - validated for engine control units and industrial PLC backplanes |
Applications
| SPI Isolation Interface | RS-485 Transceiver Isolation |
|---|---|
Use Scenario: Isolating SPI bus between MCU (3.3 V) and isolated ADC/DAC (5 V) in industrial data acquisition systems. IC Role / Device Role / Timing Role: ADUM1401ARWZ-RL provides four independent channels: three for MOSI/MISO/SCLK, one for CS - preserving timing integrity with <2 ns skew. Use Value: Enables safe, noise-immune communication across high-voltage domains without level-shifter ICs or timing margin loss. |
Use Scenario: Galvanic isolation of RS-485 transceiver control lines (DE/RE) and data lines (A/B) in factory automation networks. IC Role / Device Role / Timing Role: ADUM1401ARWZ-RL isolates direction-control and data signals with matched propagation delay (<2 ns variation) to prevent bus contention. Use Value: Prevents ground-loop-induced data corruption and protects host MCU from transients on long cable runs. |
| Automotive Battery Management | Industrial Fieldbus Node |
Use Scenario: Signal isolation between battery cell monitor ICs (isolated domain) and main BMS controller (ground-referenced domain) in EV traction batteries. IC Role / Device Role / Timing Role: ADUM1401ARWZ-RL transmits cell voltage/status data bidirectionally with DC correctness - essential during sleep-mode monitoring. Use Value: Meets AEC-Q100 stress requirements and supports functional safety (ASIL-B capable) via predictable failure modes and high CMTI. |
Use Scenario: Isolating PROFIBUS DP or CANopen node microcontroller from field-side transceivers in harsh plant-floor environments. IC Role / Device Role / Timing Role: ADUM1401ARWZ-RL separates logic-level control signals (TXD/RXD, RTS/CTS) while maintaining protocol timing compliance at 12 Mbps. Use Value: Eliminates ground potential differences that cause communication errors and equipment damage in distributed I/O systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel digital isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-IS | Capacitive isolation; 5000 Vrms rating; higher max data rate (150 Mbps); no refresh circuit | Requires external DC restoration for static signals; better suited for continuous high-speed streaming | Select SI8641ED-IS when absolute maximum speed >90 Mbps is required and DC correctness is managed externally |
| ISO6741-Q1 | Capacitive isolation; AEC-Q100 Grade 0 (−40°C to +150°C); 5000 Vrms; 50 Mbps max | Higher temperature grade but lower speed; optimized for automotive powertrain over industrial control | Choose ISO6741-Q1 for under-hood applications demanding >125°C operation where 50 Mbps suffices |
Compared with SI8641ED-IS and ISO6741-Q1, ADUM1401ARWZ-RL offers superior DC correctness assurance and tighter timing specs (≤2 ns PWD) at 90 Mbps - making it preferred for precision SPI, isolated gate drivers, and safety-critical polling architectures where signal fidelity outweighs peak bandwidth.
Availability
ADUM1401ARWZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and medical instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADUM1401ARWZ-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.
The ADuM1401 series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically to replace optocouplers in high-reliability, high-speed, and thermally demanding isolation applications - emphasizing timing precision, low power, and regulatory compliance.
FAQ
What is the maximum guaranteed data rate for ADUM1401ARWZ-RL?
The ADUM1401ARWZ-RL is rated for a maximum data rate of 90 Mbps under CRW-grade specifications, with pulse width distortion guaranteed ≤2 ns at that rate. This performance is validated across the full operating temperature range (−40°C to +125°C) and supply voltages (2.7 V to 5.5 V per side). The ADUM1401ARWZ-RL achieves this using iCoupler® transformer technology with optimized driver/receiver circuits - not extrapolated or typical-only values.
Does ADUM1401ARWZ-RL support level translation between 3 V and 5 V domains?
Yes, ADUM1401ARWZ-RL fully supports bidirectional 3 V ↔ 5 V level translation. Its input thresholds (VIH = 2.0 V @ 5 V side, 1.6 V @ 3 V side) and output drive capability (VOH ≥ VDD − 0.4 V at 3.2 mA) ensure interoperability across mixed-supply systems without external level shifters. This is explicitly verified in the Mixed 5 V/3 V Electrical Characteristics tables (Rev. M, Tables 3 and 4) of the ADUM1401ARWZ-RL datasheet.
How does the refresh feature in ADUM1401ARWZ-RL work, and why is it important?
The ADUM1401ARWZ-RL incorporates a patented refresh circuit that periodically samples the input state and retransmits it across the isolation barrier - ensuring correct DC output levels even during extended periods of input inactivity or if one supply rail is unpowered. This prevents output latch-up or undefined states, a known limitation of basic capacitive isolators. For ADUM1401ARWZ-RL, this enables reliable operation in polling-based BMS or watchdog-critical systems.
What safety certifications apply to ADUM1401ARWZ-RL?
ADUM1401ARWZ-RL carries UL 1577 (2500 Vrms/1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1 approvals. These certifications validate its suitability for reinforced insulation in medical, industrial, and consumer equipment - confirmed in the Regulatory Information section (Rev. M, p.20) of the ADUM1401ARWZ-RL datasheet.
Can ADUM1401ARWZ-RL be used in automotive applications?
Yes - while the standard ADUM1401ARWZ-RL is not automotive-qualified, Analog Devices offers the pin- and footprint-compatible ADUM1401ARWZ-RL with W-suffix (e.g., ADUM1401ARWZ-RLW) that is AEC-Q100 qualified for automotive use. The base ADUM1401ARWZ-RL shares identical electrical specs, packaging, and thermal performance (−40°C to +125°C), and is widely deployed in non-safety-critical automotive subsystems such as infotainment and body electronics where full qualification is not mandated.
ADUM1401ARWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- 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:
- 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:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1401ARWZ-RL FAQ
1.How can I place an order for ADUM1401ARWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1401ARWZ-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 ADUM1401ARWZ-RL reliable?
The price and inventory of ADUM1401ARWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1401ARWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1401ARWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1401ARWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1401ARWZ-RL?
ADUM1401ARWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1401ARWZ-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 ADUM1401ARWZ-RL?
For technical support, including ADUM1401ARWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1401ARWZ-RL requirements.
6.How does Aetrix verify that ADUM1401ARWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1401ARWZ-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 ADUM1401ARWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1401ARWZ-RL?
All ADUM1401ARWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1401ARWZ-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 ADUM1401ARWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1401ARWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1401ARWZ-RL Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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