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Analog Devices Inc. ADUM3401ARWZ-RL
- Part No.:
- ADUM3401ARWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3401ARWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,212
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Product details
Overview
ADUM3401ARWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing galvanic isolation between microcontroller I/O and industrial bus interfaces. It supports bidirectional communication at up to 10 Mbps (BRW grade), operates from 3.0 V to 5.5 V on both sides, delivers ≤3 ns pulse width distortion, and features output enable for power-sensitive systems - deployed in isolated SPI data converter interfaces.
For engineers reviewing the ADUM3401ARWZ-RL datasheet, ADUM3401ARWZ-RL pinout, ADUM3401ARWZ-RL application, or ADUM3401ARWZ-RL equivalent, key selection criteria include channel direction configuration (2/2), 10 Mbps data rate capability, SOIC-16W package compatibility, 3.3 V/5 V level translation support, and system-level ESD robustness per IEC 61000-4-x.
Technical Context
The ADUM3401ARWZ-RL implements two input channels on Side A and two output-enable-controlled output channels on Side B, enabling asymmetric signal flow control in isolated serial interfaces. Its monolithic air-core transformer isolation architecture eliminates optocoupler aging, CTR drift, and nonlinearities while supporting dc-correct logic transmission via patented refresh circuitry.
It achieves 25 kV/μs common-mode transient immunity and meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 V peak and VISO = 2500 V rms. The BRW speed grade guarantees 10 Mbps operation with ≤3 ns pulse width distortion and ≤22 ns propagation delay skew across temperature and supply variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 10 Mbps - guaranteed timing integrity for RS-485 transceiver control and isolated SPI clock/data lines |
| Pulse Width Distortion | ≤3 ns - preserves duty cycle fidelity critical for PWM and clock forwarding applications |
| Propagation Delay Skew | ≤22 ns - ensures synchronized timing across all four channels in multibit parallel isolation |
| Supply Voltage Range | 3.0 V to 5.5 V per side - enables direct interfacing with 3.3 V MCUs and 5 V peripherals without level shifters |
| Common-Mode Immunity | >25 kV/μs - maintains signal integrity in high-noise motor drive and PLC backplane environments |
| Isolation Rating | 2500 V rms (1 min), VIORM = 560 V peak - certified for reinforced insulation in industrial safety-critical systems |
| Operating Temperature | −40°C to +105°C - suitable for extended-temperature deployment in factory automation and energy metering |
Pinout & Package
ADUM3401ARWZ-RL uses a 16-lead SOIC wide-body (SOIC_W) RoHS-compliant package measuring 10.3 mm × 10.3 mm × 2.4 mm, with creepage/clearance ≥8.3 mm for reinforced insulation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies Side A inputs (pins 1–2, 15–16); accepts 3.0–5.5 V; decoupling required near pin |
| VDD2 | Secondary-side power supply | Supplies Side B outputs (pins 4–5, 12–13); independent 3.0–5.5 V domain enables level translation |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from GND2 by isolation barrier |
| GND2 | Secondary-side ground reference | Return path for VDD2; physically and electrically isolated from GND1 |
| INA, INB | Input channels A1, A2 | Logic inputs referenced to VDD1/GND1; accept CMOS levels (VIH = 2.0 V @ 5 V, 1.6 V @ 3.3 V) |
| OUTA, OUTB | Output channels B1, B2 | CMOS outputs referenced to VDD2/GND2; drive 3.2 mA sink/source; support 3.3 V/5 V logic levels |
| EN1, EN2 | Output enable controls | Active-low enables for OUTA/OUTB; high-impedance state reduces standby current in sleep modes |
| NC | No-connect terminals | Pins 3, 6–11, 14 are internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional channel configuration (2/2) | Enables isolated control of dual-directional interfaces like half-duplex RS-485 without external logic inversion |
| Output enable function per channel | Reduces total system quiescent current to ≤1.9 mA (VDD1) + ≤2.4 mA (VDD2) at 2 Mbps in low-power mode |
| 3.3 V/5 V level translation | Allows direct connection between 3.3 V microcontrollers and 5 V fieldbus transceivers across the isolation barrier |
| Enhanced system-level ESD reliability | Validated per IEC 61000-4-2 (±8 kV contact), IEC 61000-4-4 (±2 kV EFT), and IEC 61000-4-5 (±2 kV surge) |
| Patented dc-correct refresh | Maintains output logic state during static input conditions or power-up/power-down sequences without external supervision |
Applications
| SPI Data Converter Isolation | RS-485 Transceiver Control |
|---|---|
Use Scenario: Isolating SPI interface between an ARM Cortex-M4 MCU and a 16-bit SAR ADC in a high-voltage energy meter. IC Role / Device Role / Timing Role: ADUM3401ARWZ-RL provides galvanically isolated clock, MOSI, MISO, and CS signals with matched propagation delays to preserve setup/hold timing margins. Use Value: Eliminates ground loop errors and enables safe measurement of >1 kV line voltages while maintaining 100 kSPS throughput. |
Use Scenario: Controlling isolated RS-485 transceivers in a distributed PLC I/O module exposed to 2 kV EFT noise. IC Role / Device Role / Timing Role: ADUM3401ARWZ-RL drives DE/RE control lines and isolates RX/TX data paths with <22 ns skew to prevent bus contention. Use Value: Prevents transceiver latch-up during EMC events and sustains 10 Mbps half-duplex communication under 25 kV/μs transients. |
| Industrial Field Bus Isolation | Motor Drive Gate Driver Interface |
Use Scenario: Isolating PROFIBUS DP slave controller signals in a factory automation node operating at 12 Mbps. IC Role / Device Role / Timing Role: ADUM3401ARWZ-RL handles isolated D+ and D− control signals plus status feedback with precise channel-to-channel matching. Use Value: Ensures deterministic bus arbitration timing and prevents false frame detection due to inter-channel skew. |
Use Scenario: Delivering isolated PWM gate signals and fault feedback from an isolated gate driver IC to a DSP in an AC servo drive. IC Role / Device Role / Timing Role: ADUM3401ARWZ-RL transmits high-side/lower-side PWM edges and DESAT response with ≤3 ns pulse distortion. Use Value: Maintains dead-time integrity and enables fast overcurrent shutdown (<100 ns latency) for IGBT protection. |
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 |
|---|---|---|---|
| SI8641ED-B-IS | Capacitive isolation; 10 Mbps rated; 2/2 channel direction; 2.5 kV rms isolation rating | Lacks reinforced insulation certification (VDE 0884-17) and system-level IEC 61000-4-x validation | Preferred where lower cost and smaller footprint outweigh regulatory compliance needs |
| ISO6741-Q1 | Capacitive isolation; AEC-Q100 qualified; 50 Mbps max; 2/2 channel direction; 5000 V rms isolation | Automotive-qualified but lacks IEC 61000-4-x system-level ESD enhancements for industrial use | Selected when automotive-grade reliability and higher data rate are prioritized over industrial ESD hardening |
Compared with SI8641ED-B-IS and ISO6741-Q1, the ADUM3401ARWZ-RL uniquely combines BRW-grade 10 Mbps performance, VDE 0884-17 reinforced insulation, and documented system-level IEC 61000-4-x robustness - making it the only option qualified for safety-critical industrial fieldbus nodes requiring both functional safety and EMC resilience.
Availability
ADUM3401ARWZ-RL is available at Aetrix Electronics and suitable for industrial PLC modules, energy metering systems, and motor drive control boards requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-certified designs.
Supply support for ADUM3401ARWZ-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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial, and communications applications.
The ADuM340x family was designed specifically for cost-sensitive industrial isolation applications requiring enhanced system-level ESD reliability, wide supply range operation, and seamless 3.3 V/5 V level translation - targeting PLC I/O, motor drives, and energy infrastructure.
FAQ
What is the maximum guaranteed data rate for ADUM3401ARWZ-RL?
The ADUM3401ARWZ-RL is a BRW-grade device with a maximum guaranteed data rate of 10 Mbps, validated under load (CL = 15 pF) with ≤3 ns pulse width distortion and ≤50 ns propagation delay. This rating applies across the full operating temperature range (−40°C to +105°C) and supply voltage range (3.0 V to 5.5 V per side). Higher rates up to 120 Mbps are specified for CRW variants only.
Does ADUM3401ARWZ-RL support level translation between 3.3 V and 5 V domains?
Yes, ADUM3401ARWZ-RL supports true bidirectional level translation: VDD1 can operate from 3.0 V to 5.5 V independently of VDD2, which also accepts 3.0 V to 5.5 V. Input thresholds scale accordingly (VIH = 2.0 V at 5 V, 1.6 V at 3.3 V), and output drive strength adapts to the local supply - enabling direct interface between 3.3 V microcontrollers and 5 V RS-485 transceivers without external level shifters.
What safety certifications apply to ADUM3401ARWZ-RL?
ADUM3401ARWZ-RL is certified to UL 1577 (2500 V rms, 1 minute), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation (VIORM = 560 V peak), IEC/CSA 62368-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB 4943.1. These approvals validate its suitability for medical, industrial, and test equipment requiring double/reinforced insulation.
How does the output enable function work on ADUM3401ARWZ-RL?
ADUM3401ARWZ-RL provides two independent active-low output enable pins (EN1, EN2) controlling OUTA and OUTB respectively. When asserted low, each output enters high-impedance state with ≤1 µA leakage. Propagation delay from EN assertion to high-Z is ≤8 ns, and from high-Z to valid logic is ≤8 ns - enabling precise power gating in low-duty-cycle communication protocols like Modbus RTU.
Is ADUM3401ARWZ-RL pin-compatible with other ADuM340x variants?
Yes, ADUM3401ARWZ-RL shares identical SOIC-16W pinout and footprint with all ADuM340x family members (e.g., ADUM3400, ADUM3402), including same VDD1/VDD2, GND1/GND2, input/output, and enable pin assignments. Channel direction (2/2 for ADUM3401) and speed grade (BRW) are the only functional differentiators - allowing drop-in replacement within the same package variant when design constraints permit.
ADUM3401ARWZ-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:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM3401ARWZ-RL FAQ
1.How can I place an order for ADUM3401ARWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3401ARWZ-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 ADUM3401ARWZ-RL reliable?
The price and inventory of ADUM3401ARWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3401ARWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM3401ARWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3401ARWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3401ARWZ-RL?
ADUM3401ARWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3401ARWZ-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 ADUM3401ARWZ-RL?
For technical support, including ADUM3401ARWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3401ARWZ-RL requirements.
6.How does Aetrix verify that ADUM3401ARWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM3401ARWZ-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 ADUM3401ARWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM3401ARWZ-RL?
All ADUM3401ARWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3401ARWZ-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 ADUM3401ARWZ-RL part is unused and in its original packaging.
Return procedure for ADUM3401ARWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3401ARWZ-RL Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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