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Analog Devices Inc. ADUM4400WBRWZ
- Part No.:
- ADUM4400WBRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4400WBRWZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,080
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Product details
Overview
ADUM4400WBRWZ from Analog Devices is a quad-channel, reinforced-isolation digital isolator with 5 kVRMS rating, 10 Mbps data rate, and automotive qualification (AEC-Q100). It provides bidirectional signal isolation across two independent voltage domains (3.135–5.5 V per side), features output enable control on Side 2, and delivers <3.5 ns pulse width distortion for precise timing in motor drive and battery monitoring systems.
For engineers reviewing the ADUM4400WBRWZ datasheet, ADUM4400WBRWZ pinout, ADUM4400WBRWZ application, or ADUM4400WBRWZ equivalent, this page details its WB-grade timing performance, SOIC-16 wide-body package layout, 125°C operation, IEC 61000-4-x system-level ESD enhancements, and verified alternatives for automotive isolated communication interfaces.
Technical Context
The ADUM4400WBRWZ implements iCoupler® monolithic air-core transformer technology with integrated refresh circuitry to guarantee DC correctness during power-up, power-down, and static input conditions. Its dual-supply architecture supports asymmetric 3.3 V/5 V level translation across the isolation barrier without external components.
All four channels are unidirectional (A→A, B→B, C→C, D→D), with dedicated output enable (VE2) on Side 2 controlling all VOx outputs. The device achieves >25 kV/µs common-mode transient immunity and meets reinforced insulation requirements per DIN V VDE V 0884-10 (VIORM = 849 VPEAK) and UL 1577 (5000 VRMS/1 min).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 10 Mbps NRZ - supports high-speed CAN FD, SPI, and PWM feedback loops without oversampling. |
| Pulse Width Distortion | ≤3.5 ns - ensures minimal duty-cycle error in clock or PWM signals crossing isolation barrier. |
| Propagation Delay Skew | ≤3.5 ns (codirectional) - enables tight channel-to-channel synchronization for multi-signal acquisition. |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drive or inverter environments. |
| Supply Voltage Range | 3.135 V to 5.5 V per side - allows direct interface with 3.3 V microcontrollers and 5 V analog front-ends. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive applications per AEC-Q100 Grade 1. |
| Isolation Rating | 5000 VRMS for 1 minute (UL 1577); VIORM = 849 VPEAK (VDE V 0884-10) - certified reinforced insulation for functional safety systems. |
Pinout & Package
ADUM4400WBRWZ uses a 16-lead SOIC wide-body package (RW-16) with 8.0 mm minimum creepage and 7.7 mm minimum clearance for reinforced insulation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | Input-side supply | Power domain for VIA, VIB, VIC, VID inputs; accepts 3.135–5.5 V. |
| GND1 (Pins 2, 8) | Input-side ground | Dual GND1 pins reduce ground impedance and improve noise rejection on Side 1. |
| VIA–VID (Pins 3–6) | Logic inputs | Four unidirectional CMOS-compatible inputs referenced to VDD1/GND1. |
| NC (Pin 7) | No-connect | Internally unconnected; recommended to tie to GND1 to minimize noise coupling. |
| VDD2 (Pin 16) | Output-side supply | Power domain for VOA–VOD outputs; independent 3.135–5.5 V biasing. |
| GND2 (Pins 9, 15) | Output-side ground | Dual GND2 pins provide low-impedance return path for isolated outputs. |
| VE2 (Pin 10) | Output enable (Side 2) | Active-high control: high or floating enables VOA–VOD; low forces high-impedance state. |
| VOA–VOD (Pins 11–14) | Logic outputs | Four unidirectional CMOS outputs referenced to VDD2/GND2; support 4 mA drive. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced automotive isolation | UL 1577 (5 kVRMS), VDE V 0884-10 (VIORM = 849 VPEAK), AEC-Q100 qualified - meets ISO 26262 ASIL-B system-level requirements. |
| Low-power operation | 1.4 mA/channel max @ 1 Mbps (5 V), 0.9 mA/channel max @ 1 Mbps (3.3 V) - extends battery life in always-on vehicle modules. |
| DC-correct refresh logic | Patented internal refresh ensures output state retention during static input or power sequencing - eliminates need for external watchdog timers. |
| System-level ESD robustness | Enhanced layout and circuit design per IEC 61000-4-2/4-4/4-5 - reduces external TVS dependency in ECU designs. |
| High-temperature reliability | Specified up to +125°C ambient with thermal derating curve validated per DIN V VDE V 0884-10 - supports placement near power stages. |
Applications
| Battery Management System (BMS) | Motor Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage monitor ADC outputs and pack current sensor signals from MCU in 400–800 V EV battery packs. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting sampled analog front-end data across 5 kV barrier with <3.5 ns PWD to preserve sampling phase accuracy. Use Value: Enables safe, high-resolution SOC/SOH calculation without compromising timing fidelity or requiring additional level-shifting circuitry. |
Use Scenario: Transmitting PWM gate-drive commands from MCU to isolated gate drivers in traction inverter half-bridges. IC Role / Device Role / Timing Role: Providing matched propagation delay (<3.5 ns skew) and fast enable/disable (6–8 ns) for synchronized high-side/low-side switching. Use Value: Prevents shoot-through by ensuring precise dead-time control across isolation barrier at 10 Mbps update rates. |
| Onboard Charger (OBC) Communication | Automotive CAN Gateway |
Use Scenario: Isolating UART or SPI communication between AC/DC controller and vehicle network in bidirectional OBC units. IC Role / Device Role / Timing Role: Level-translating 3.3 V MCU interface to 5 V analog subsystem while maintaining 10 Mbps throughput and 125°C operation. Use Value: Eliminates external level shifters and simplifies thermal management in compact, sealed OBC enclosures. |
Use Scenario: Isolating CAN transceiver lines between safety-critical powertrain domain and infotainment domain in Zonal E/E architectures. IC Role / Device Role / Timing Role: Reinforced-isolation barrier for CAN_H/CAN_L signals with >25 kV/µs CMTI to suppress inverter noise coupling into diagnostics bus. Use Value: Prevents false CAN errors and bus-off events during high-dV/dt switching, improving diagnostic uptime. |
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; 5 kVRMS; 10 Mbps; 125°C; no output enable pin | Lacks VE2 control - requires external logic for tri-state management in shared-bus systems | Preferred when board space is constrained and output enable is not required. |
| ISO7740FQDWWRQ1 | Capacitive isolation; 5 kVRMS; 100 Mbps; AEC-Q100; 150°C rated | Higher speed and temperature rating but consumes ~2× more quiescent current at 1 Mbps | Selected for next-gen inverters needing future-proof bandwidth headroom. |
Compared with SI8640ED-B-IS and ISO7740FQDWWRQ1, ADUM4400WBRWZ offers unique output enable (VE2) functionality and lowest power at 1–10 Mbps in automotive temperature range, making it optimal for cost-sensitive, thermally constrained BMS and inverter gate-drive interfaces where precise tri-state control is mandatory.
Availability
ADUM4400WBRWZ is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitoring, motor drive gate control, onboard charger communication, and automotive CAN gateway applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for ADUM4400WBRWZ 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, headquartered in Norwood, MA, with R&D and manufacturing facilities worldwide.
The ADuM4400W family is part of Analog Devices' iCoupler® automotive isolator product line, designed specifically for functional safety-critical isolation in electric powertrain systems, emphasizing reinforced insulation integrity, thermal resilience, and system-level EMC robustness.
FAQ
What is the maximum data rate supported by ADUM4400WBRWZ?
ADUM4400WBRWZ supports a maximum data rate of 10 Mbps in NRZ format, verified across the full operating temperature range (−40°C to +125°C) and supply voltage range (3.135 V to 5.5 V per side). This rate is sustained with ≤3.5 ns pulse width distortion and <36 ns propagation delay (WB grade), making ADUM4400WBRWZ suitable for high-speed SPI, PWM, and serial interface isolation in automotive power electronics.
Does ADUM4400WBRWZ support level translation between 3.3 V and 5 V domains?
Yes, ADUM4400WBRWZ fully supports bidirectional level translation: VDD1 may be 3.3 V while VDD2 is 5 V (or vice versa), with guaranteed logic thresholds (VIH = 2.0 V @ 5 V, 1.6 V @ 3.3 V; VIL = 0.8 V @ 5 V, 0.4 V @ 3.3 V). This capability is explicitly characterized in Tables 7–12 of the datasheet and requires no external components - a key advantage of ADUM4400WBRWZ in mixed-voltage automotive ECUs.
What is the function of the VE2 pin on ADUM4400WBRWZ?
The VE2 pin (Pin 10) is an active-high output enable control for all Side 2 outputs (VOA–VOD). When VE2 is high or left floating, outputs drive actively; when VE2 is low, all VOx pins enter high-impedance state with ≤10 µA leakage. Propagation delay from VE2 transition to output disable/enable is 6–8 ns. This feature enables ADUM4400WBRWZ to share buses or implement fail-safe shutdown in motor control systems without external logic.
Is ADUM4400WBRWZ certified for automotive use?
Yes, ADUM4400WBRWZ is AEC-Q100 qualified (Grade 1: −40°C to +125°C), UL 1577 recognized (5000 VRMS/1 min), VDE-certified per DIN V VDE V 0884-10 (reinforced, VIORM = 849 VPEAK), and CSA-approved. These certifications are documented in Tables 14 and 16 of the datasheet and apply specifically to the ADUM4400WBRWZ variant, confirming its suitability for safety-critical automotive applications including battery monitoring and traction inverters.
How does ADUM4400WBRWZ ensure DC correctness during power-up?
ADUM4400WBRWZ incorporates patented refresh circuitry that continuously monitors input states and retransmits static logic levels across the isolation barrier - even with no input transitions or during partial power-up/power-down sequences. This guarantees deterministic output behavior without external reset supervision, a critical requirement for ADUM4400WBRWZ in automotive systems where supply sequencing is non-uniform and brown-out conditions occur.
ADUM4400WBRWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- 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:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 36ns, 36ns
- Pulse Width Distortion (Max):
- 3.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3.135V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM4400WBRWZ FAQ
1.How can I place an order for ADUM4400WBRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4400WBRWZ 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 ADUM4400WBRWZ reliable?
The price and inventory of ADUM4400WBRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4400WBRWZ is usually 5 days.
3.What payment methods are accepted for ADUM4400WBRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4400WBRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4400WBRWZ?
ADUM4400WBRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4400WBRWZ 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 ADUM4400WBRWZ?
For technical support, including ADUM4400WBRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4400WBRWZ requirements.
6.How does Aetrix verify that ADUM4400WBRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM4400WBRWZ 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 ADUM4400WBRWZ meets industry standards.
7.What is the process for return or replacement of ADUM4400WBRWZ?
All ADUM4400WBRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4400WBRWZ, 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 ADUM4400WBRWZ part is unused and in its original packaging.
Return procedure for ADUM4400WBRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4400WBRWZ Tags
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