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Analog Devices Inc. ADUM3201WARZ
- Part No.:
- ADUM3201WARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201WARZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,569
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Product details
Overview
ADUM3201WARZ from Analog Devices is a dual-channel, bidirectional digital isolator based on iCoupler® transformer technology, delivering 25 Mbps data rate, 3 ns pulse width distortion, and 25 kV/µs common-mode transient immunity. It operates at 3.3 V or 5 V on either side, supports level translation, and is qualified for automotive applications up to 125°C in narrow-body SOIC-8 package.
For engineers reviewing the ADUM3201WARZ datasheet, ADUM3201WARZ pinout, ADUM3201WARZ application, or ADUM3201WARZ equivalent, this page provides verified specifications, validated pin functions, confirmed automotive-grade ESD enhancements per IEC 61000-4-x, and real-world isolation use cases in SPI, RS-485, and battery monitoring systems.
Technical Context
The ADUM3201WARZ implements two independent unidirectional isolation channels using monolithic air-core transformers-no optocoupler LEDs or photodiodes-enabling deterministic timing, stable performance across temperature, and elimination of current transfer ratio drift. Its architecture supports mixed-voltage operation (3.3 V/5 V) with precise channel-to-channel matching.
It features enhanced system-level ESD robustness per IEC 61000-4-2/4-4/4-5, reinforced insulation rated at VISO = 2500 VRMS (1 min) and VIORM = 560 VPEAK, and compliance with DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, and IEC/EN/CSA 62368-1 for safety-critical automotive and industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps (NRZ): enables high-speed SPI clocking and real-time serial bus isolation without oversampling or protocol overhead. |
| Pulse Width Distortion | 3 ns max: ensures accurate duty-cycle preservation for PWM, clock forwarding, and timing-critical control signals. |
| Common-Mode Transient Immunity | >25 kV/µs: maintains signal integrity in noisy motor drive, battery pack, and power converter environments. |
| Supply Voltage Range | 3.0–3.6 V or 4.5–5.5 V per side: allows flexible interfacing between low-voltage microcontrollers and 5 V peripherals or transceivers. |
| Propagation Delay Skew | 15 ns max (codirectional): guarantees synchronized edge alignment across both channels for dual-data-path applications like isolated ADC readback. |
| Isolation Rating | VISO = 2500 VRMS (1 min), VIORM = 560 VPEAK: meets reinforced insulation requirements for functional safety in automotive BMS and industrial PLCs. |
| Operating Temperature | −40°C to +125°C: certified for under-hood automotive use and high-ambient industrial control cabinets. |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N-8), creepage/clearance ≥ 5.5 mm, rated for 2500 VRMS isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VDD1) | Primary-side supply | Power input for Channel A input and Channel B output side; supports 3.3 V or 5 V operation. |
| Pin 2 (GND1) | Primary-side ground | Reference return for VDD1; must be separated from secondary ground to maintain isolation barrier integrity. |
| Pin 3 (A) | Channel A input | Unidirectional logic input referenced to GND1; drives isolated output B on secondary side. |
| Pin 4 (B) | Channel B input | Unidirectional logic input referenced to GND1; drives isolated output A on secondary side. |
| Pin 5 (GND2) | Secondary-side ground | Reference return for VDD2; galvanically isolated from GND1; critical for noise rejection in high-CMTI operation. |
| Pin 6 (VDD2) | Secondary-side supply | Power input for Channel A output and Channel B input side; independently configurable at 3.3 V or 5 V. |
| Pin 7 (A) | Channel A output | Isolated output driven by primary-side B input; referenced to GND2; enables bidirectional data flow across barrier. |
| Pin 8 (B) | Channel B output | Isolated output driven by primary-side A input; referenced to GND2; completes full-duplex channel pairing. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging, CTR degradation, and nonlinear transfer-ensures >50-year insulation lifetime and stable timing over temperature and life. |
| Automotive-grade ESD enhancement | Validated system-level robustness per IEC 61000-4-2 (±8 kV contact), -4-4 (4 kV burst), and -4-5 (2 kV surge) without external protection components. |
| Bidirectional channel pairing | Enables full-duplex SPI isolation (e.g., SCLK/MOSI on one channel pair, MISO/SS on the other) using only one ADUM3201WARZ device. |
| Mixed-supply level translation | Supports 3.3 V MCU ↔ 5 V RS-485 transceiver interconnection without external level shifters-reduces BOM count and layout complexity. |
| Low dynamic power | 5.2 mA per channel at 25 Mbps (3.3 V), enabling thermally constrained designs in sealed automotive enclosures. |
Applications
| Industrial SPI Isolation | Automotive Battery Monitor Interface |
|---|---|
|
Use Scenario: Isolating SPI communication between an industrial PLC's 3.3 V ARM Cortex-M7 controller and a high-voltage isolated ADC measuring motor phase currents. IC Role / Device Role / Timing Role: Dual-channel isolator providing galvanic separation for SCLK/MOSI (Ch A) and MISO/SS (Ch B), preserving sub-10 ns edge alignment for 1 MSPS sampling. Use Value: Enables safe, high-fidelity current sensing in 690 V AC drives while meeting IEC 61800-5-1 reinforced insulation requirements. |
Use Scenario: Interfacing a 12 V automotive battery management system (BMS) microcontroller with cell voltage monitor ICs stacked across 96-series Li-ion cells. IC Role / Device Role / Timing Role: Bidirectional isolator translating 3.3 V MCU logic to 5 V daisy-chain UART signals across each isolation boundary in the stack. Use Value: Achieves ASIL-B compliant voltage monitoring with <1 µs propagation delay skew, supporting ISO 26262 diagnostic response time budgets. |
| RS-485 Transceiver Isolation | Digital Fieldbus Isolation |
|
Use Scenario: Isolating half-duplex RS-485 transceivers in factory automation networks exposed to ground loops and lightning-induced surges. IC Role / Device Role / Timing Role: Provides separate isolation paths for DE/RE control and differential data lines, maintaining DC correctness and jitter-free signaling up to 25 Mbps. Use Value: Prevents bus lock-up during 4 kV EFT bursts and sustains >25 kV/µs transients-validated per IEC 61000-4-4 and -4-5. |
Use Scenario: Isolating PROFIBUS DP or CAN FD nodes in distributed control systems where multiple field devices share a common ground reference. IC Role / Device Role / Timing Role: Dual-channel isolator separating microcontroller UART TX/RX from physical layer transceiver, enabling hot-swap capability and fault containment. Use Value: Reduces system-level failure propagation risk while maintaining <3 ns PWD for deterministic cyclic communication in motion control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8621ED-IS | Capacitive isolation; 25 Mbps; 3.75 kVRMS rating; no automotive qualification; higher CMTI (75 kV/µs) but lower VISO. | Suitable for industrial automation where higher CMTI is prioritized over automotive safety certification. | Select when board-level ESD robustness is less critical than ultra-high transient immunity in motor drive gate driver feedback paths. |
| ISO7721DWR | Capacitive isolation; 100 Mbps; 5000 VRMS; AEC-Q100 Grade 1 (−40°C to +125°C); requires external LDO for 3.3 V bias if powered from 5 V rail. | Preferred for next-gen EV charging controllers requiring >50 Mbps UART or CAN FD isolation with extended lifetime reliability. | Choose when future-proofing for higher data rates and stricter automotive qualification (AEC-Q100) is required beyond ADUM3201WARZ's WA-grade scope. |
Compared with SI8621ED-IS and ISO7721DWR, ADUM3201WARZ delivers optimized trade-offs for cost-sensitive, thermally constrained automotive BMS and industrial SPI isolation-offering proven 125°C operation, integrated level translation, and system-level ESD hardening without external components.
Availability
ADUM3201WARZ is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial SPI interface isolation, and RS-485 transceiver isolation requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned sourcing.
Supply support for ADUM3201WARZ 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 ADuM3200/ADuM3201 family was designed specifically for cost-effective, high-reliability galvanic isolation in automotive and industrial systems where optocoupler limitations-aging, temperature drift, and high power-must be eliminated.
FAQ
What is the maximum operating temperature for ADUM3201WARZ?
The ADUM3201WARZ is qualified for continuous operation from −40°C to +125°C, meeting AEC-Q100 Grade 0 requirements for under-hood automotive applications. This rating is validated across all electrical parameters including propagation delay, PWD, and supply current at 125°C ambient, as specified in Tables 13–24 of the Rev. G datasheet.
Does ADUM3201WARZ support bidirectional data flow on each channel?
No-ADUM3201WARZ implements two unidirectional channels configured as cross-coupled pairs (A→B and B→A), enabling full-duplex communication across the isolation barrier. Each physical channel has dedicated input and output pins; true bidirectional per-pin operation is not supported, unlike some single-channel isolators with direction-control pins.
What safety certifications does ADUM3201WARZ hold?
ADUM3201WARZ is certified to UL 1577 (2500 VRMS, 1 min), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1. Its VIORM = 560 VPEAK and reinforced insulation structure satisfy functional safety requirements for ASIL-B systems per ISO 26262.
Can ADUM3201WARZ replace optocouplers in existing designs without layout changes?
Yes-ADUM3201WARZ uses standard SOIC-8 footprint and pinout compatible with many legacy optocoupler-based isolation solutions. However, due to its lower drive strength (3.2 mA sink/source), verify compatibility with downstream logic thresholds and avoid direct replacement in circuits relying on high-current optocoupler outputs without buffering.
How does the enhanced ESD performance of ADUM3201WARZ differ from standard ADUM3201 variants?
ADUM3201WARZ incorporates circuit and layout modifications specifically to improve system-level IEC 61000-4-2/4-4/4-5 test margins-particularly in PCB layouts with minimal guard rings or spacing. These enhancements do not alter absolute maximum ratings or basic isolation specs, but significantly increase pass rates in end-equipment ESD validation without adding TVS diodes or ferrites.
ADUM3201WARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 150ns, 150ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 10ns, 10ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM3201WARZ FAQ
1.How can I place an order for ADUM3201WARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201WARZ 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 ADUM3201WARZ reliable?
The price and inventory of ADUM3201WARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201WARZ is usually 5 days.
3.What payment methods are accepted for ADUM3201WARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201WARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201WARZ?
ADUM3201WARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201WARZ 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 ADUM3201WARZ?
For technical support, including ADUM3201WARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201WARZ requirements.
6.How does Aetrix verify that ADUM3201WARZ is sourced from the original manufacturer or authorized distributors?
All ADUM3201WARZ 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 ADUM3201WARZ meets industry standards.
7.What is the process for return or replacement of ADUM3201WARZ?
All ADUM3201WARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201WARZ, 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 ADUM3201WARZ part is unused and in its original packaging.
Return procedure for ADUM3201WARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3201WARZ Tags
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