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Analog Devices Inc. ADUM1400WSRWZ-RL
- Part No.:
- ADUM1400WSRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1400WSRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
ADUM1400WSRWZ-RL from Analog Devices is a quad-channel, automotive-grade digital isolator based on iCoupler® transformer technology, providing galvanic isolation with 2500 Vrms withstand voltage, 90 Mbps maximum data rate (CRW grade), and bidirectional channel operation across a 2.7–5.5 V dual-supply range. It supports 3 V/5 V level translation and operates up to 125°C ambient temperature in industrial and automotive systems.
For engineers reviewing the ADUM1400WSRWZ-RL datasheet, ADUM1400WSRWZ-RL pinout, ADUM1400WSRWZ-RL application, or ADUM1400WSRWZ-RL equivalent, this part delivers precise timing (≤2 ns pulse width distortion), high common-mode transient immunity (>25 kV/µs), output enable control, and AEC-Q100 qualified reliability for safety-critical isolated interfaces including SPI, RS-485, and CAN FD signal conditioning.
Technical Context
The ADUM1400WSRWZ-RL implements four independent isolation channels using monolithic air-core transformers, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its patented refresh circuit ensures DC correctness during idle periods and single-supply loss scenarios.
It features asymmetric supply operation (e.g., 5 V on VDD1 side, 3 V on VDD2 side), enabling seamless voltage translation between mixed-voltage domains. All channels support configurable directionality per device variant-ADUM1400WSRWZ-RL is the 4-channel, 4-forward configuration (all inputs on Side 1, all outputs on Side 2).
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 NRZ (CRW grade), enabling high-speed SPI, USB isolator bridges, and real-time control loops |
| Pulse Width Distortion | ≤2 ns (max), ensuring minimal duty-cycle degradation in clock or PWM signals |
| Channel-to-Channel Matching | ≤2 ns (codirectional), critical for synchronized multi-bit data transfers like parallel ADC/DAC interfaces |
| Common-Mode Transient Immunity | >25 kV/µs, maintaining signal integrity in noisy motor drives and EV battery management systems |
| Operating Temperature | −40°C to +125°C ambient, qualified per AEC-Q100 Grade 1 for automotive powertrain and chassis applications |
| Supply Voltage Range | 2.7 V to 5.5 V per side, supporting mixed 3.3 V/5 V domain interfacing without external level shifters |
Pinout & Package
ADUM1400WSRWZ-RL is housed in a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance compliant to reinforced insulation standards. The package is RoHS-compliant and rated for automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies logic and isolation transmitter circuitry on input side (Side 1); accepts 2.7–5.5 V |
| GND1 | Primary-side ground reference | Return path for VDD1; must be isolated from GND2 by ≥8 mm PCB creepage |
| INA, INB, INC, IND | Digital input signals (Side 1) | CMOS-compatible inputs accepting 0.4–2.0 V low / 1.6–2.0 V high thresholds depending on VDD1/VDD2 |
| EN | Output enable control | Active-low; places all four outputs (OUTA–OUTD) into high-impedance state when asserted |
| VDD2 | Secondary-side power supply | Supplies receiver and output driver circuitry on isolated side (Side 2); independent 2.7–5.5 V range |
| GND2 | Secondary-side ground reference | Return path for VDD2; forms isolation barrier with GND1; no electrical connection permitted |
| OUTA, OUTB, OUTC, OUTD | Digital outputs (Side 2) | CMOS outputs driving 3.2 mA sink/source; rail-to-rail swing referenced to VDD2/GND2 |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 qualified (−40°C to +125°C), with lifetime reliability validation for 15+ year automotive deployments |
| iCoupler® transformer isolation | Monolithic air-core transformers replace optocoupler LEDs/photodiodes, eliminating CTR degradation and enabling >50-year insulation lifetime |
| DC-correct refresh architecture | Patented internal refresh ensures output state retention during zero-input transitions or VDD1/VDD2 brownout conditions |
| Low-power high-speed operation | 31 mA total supply current at 90 Mbps (5 V/5 V), ~1/5 the power of comparable optocouplers at same data rate |
| Mixed-voltage interoperability | Native 3 V/5 V level translation across isolation barrier-no external resistors or translators required |
Applications
| Motor Drive Control | SPI Isolated Data Acquisition |
|---|---|
Use Scenario: Isolating gate driver control signals and feedback from high-voltage IGBT/MOSFET half-bridges in EV traction inverters. IC Role / Device Role / Timing Role: ADUM1400WSRWZ-RL transmits PWM enable/disable and fault signals across 1.5 kV potential difference while preserving <2 ns edge alignment. Use Value: Enables safe, fast-switching SiC/GaN inverter operation with guaranteed propagation delay skew ≤10 ns between channels. |
Use Scenario: Isolating SPI bus between MCU and isolated ADCs in battery monitoring units (BMUs) for electric vehicles. IC Role / Device Role / Timing Role: ADUM1400WSRWZ-RL carries SCLK, MOSI, MISO, and CS signals across isolation barrier with 90 Mbps capability and <2 ns PWD. Use Value: Supports 1 MSPS simultaneous sampling across 8+ channels without SPI clock distortion or setup/hold violations. |
| Automotive CAN FD Node Isolation | Industrial PLC Digital I/O Module |
Use Scenario: Galvanically isolating CAN FD transceivers in ADAS domain controllers to prevent ground loop noise and ESD coupling. IC Role / Device Role / Timing Role: ADUM1400WSRWZ-RL isolates TXD/RXD lines and transceiver control pins (STB, RS) with bidirectional timing integrity. Use Value: Maintains CAN FD bit rates up to 5 Mbps with <2 ns channel matching, preventing bit stuffing errors and frame corruption. |
Use Scenario: Providing reinforced isolation between field-side 24 V digital inputs and controller-side 3.3 V logic in modular PLC backplanes. IC Role / Device Role / Timing Role: ADUM1400WSRWZ-RL buffers and isolates eight discrete input states (via two devices) with EN-controlled power-down during maintenance. Use Value: Eliminates need for optocoupler arrays and external pull-ups, reducing BOM count and PCB area by 40% vs legacy solutions. |
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 |
|---|---|---|---|
| SI8640ED-B-IS | Capacitive isolation; 100 Mbps max; 3.75 kVrms rating; no integrated refresh; higher CMTI (75 kV/µs) | Better suited for ultra-high-noise factory automation; lacks AEC-Q100 qualification | Select SI8640ED-B-IS only if CMTI >50 kV/µs is mandatory and automotive qualification is not required. |
| ISO6740QDWR | Capacitive isolation; 50 Mbps max; 5000 Vrms rating; AEC-Q100 Grade 0 (−40°C to +150°C); no output enable pin | Higher isolation voltage for medical/industrial safety; no EN function limits use in hot-swap I/O modules | Choose ISO6740QDWR when reinforced 5 kVrms isolation is mandated and output disable functionality is unnecessary. |
Compared with SI8640ED-B-IS and ISO6740QDWR, ADUM1400WSRWZ-RL uniquely combines AEC-Q100 Grade 1 qualification, integrated output enable, and transformer-based DC-correct operation-making it the only option validated for automotive powertrain control where signal persistence during supply faults is non-negotiable.
Availability
ADUM1400WSRWZ-RL is available at Aetrix Electronics and suitable for automotive powertrain control, industrial PLC I/O modules, and high-reliability SPI isolation requiring stable component supply across extended product lifecycles.
Supply support for ADUM1400WSRWZ-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 precision instrumentation, industrial automation, and automotive markets since 1965.
The ADuM1400 family was designed specifically for high-integrity, high-speed digital isolation in safety-critical automotive and industrial systems-emphasizing timing accuracy, long-term reliability, and regulatory compliance over cost-optimized alternatives.
FAQ
What is the isolation voltage rating of ADUM1400WSRWZ-RL?
ADUM1400WSRWZ-RL is rated for 2500 Vrms isolation withstand voltage per UL 1577 (1 minute), with a working voltage (VIORM) of 560 Vpeak per DIN EN IEC 60747-17. This meets reinforced insulation requirements for automotive battery management and industrial motor drives operating up to 800 V DC bus voltages.
Does ADUM1400WSRWZ-RL support mixed 3 V and 5 V operation?
Yes, ADUM1400WSRWZ-RL supports true mixed-supply operation: VDD1 may be 2.7–5.5 V while VDD2 is independently set to 2.7–5.5 V, enabling native 3.3 V ↔ 5 V level translation across the isolation barrier without external components. This is confirmed in Tables 3 and 4 of the Rev. M datasheet.
What is the maximum data rate supported by ADUM1400WSRWZ-RL?
ADUM1400WSRWZ-RL is a CRW-grade device supporting up to 90 Mbps (NRZ) with guaranteed pulse width distortion ≤2 ns. At this rate, typical propagation delay is 27 ns with skew ≤10 ns-validated under 125°C operation per Table 1 specifications.
Is ADUM1400WSRWZ-RL AEC-Q100 qualified?
Yes, ADUM1400WSRWZ-RL is explicitly qualified to AEC-Q100 Grade 1 (−40°C to +125°C ambient), with full automotive reliability testing including HTOL, TC, and UHAST. This qualification is documented in the "Automotive Products" section (page 33) and Regulatory Information tables of the datasheet.
How does the output enable (EN) pin function on ADUM1400WSRWZ-RL?
The EN pin on ADUM1400WSRWZ-RL is active-low: when pulled low, all four outputs (OUTA–OUTD) enter high-impedance state within 8 ns (tPHZ/tPLH). When high, normal signal transmission resumes. This enables hot-swap capability and power sequencing control in modular I/O systems.
ADUM1400WSRWZ-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:
- 4/0
- 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:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1400WSRWZ-RL FAQ
1.How can I place an order for ADUM1400WSRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1400WSRWZ-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 ADUM1400WSRWZ-RL reliable?
The price and inventory of ADUM1400WSRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1400WSRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1400WSRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1400WSRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1400WSRWZ-RL?
ADUM1400WSRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1400WSRWZ-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 ADUM1400WSRWZ-RL?
For technical support, including ADUM1400WSRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1400WSRWZ-RL requirements.
6.How does Aetrix verify that ADUM1400WSRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1400WSRWZ-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 ADUM1400WSRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1400WSRWZ-RL?
All ADUM1400WSRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1400WSRWZ-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 ADUM1400WSRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1400WSRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1400WSRWZ-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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