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Analog Devices Inc. ADUM3201WBRZ
- Part No.:
- ADUM3201WBRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201WBRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:369
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Product details
Overview
ADUM3201WBRZ from Analog Devices is a dual-channel, automotive-grade digital isolator based on iCoupler® transformer technology, providing reinforced galvanic isolation with 2500 VRMS withstand voltage, 25 Mbps data rate, and operation up to 125°C. It supports bidirectional communication with 3.3 V/5 V level translation across the isolation barrier and delivers precise timing (≤3 ns pulse width distortion, ≤3 ns channel-to-channel matching) for SPI, RS-485, and battery monitor interfaces in hybrid electric vehicles.
For engineers reviewing the ADUM3201WBRZ datasheet, ADUM3201WBRZ pinout, ADUM3201WBRZ application, or ADUM3201WBRZ equivalent, this page provides verified specifications, package mapping, functional pin definitions, real-world use cases, and validated alternative options for automotive and industrial isolation design.
Technical Context
The ADUM3201WBRZ implements two independent unidirectional isolation channels using monolithic air-core transformers-eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its architecture enables deterministic propagation delay (20–45 ns over temperature and voltage), low jitter, and immunity to magnetic fields without external components.
It features enhanced system-level ESD robustness per IEC 61000-4-x, qualified under AEC-Q100 Grade 1 (−40°C to +125°C), and supports mixed-supply operation (e.g., 5 V primary / 3.3 V secondary) with full DC correctness and refresh-based data retention at 1.1–1.2 Mbps during idle periods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps NRZ - supports high-speed SPI clocking and RS-485 control signaling without oversampling or encoding overhead |
| Isolation Withstand Voltage | 2500 VRMS for 1 minute - meets UL 1577 and IEC/EN/CSA 62368-1 reinforced insulation requirements for safety-critical systems |
| Pulse Width Distortion | ≤3 ns maximum - ensures clean clock/data edges for synchronous interfaces like SPI and digital power control loops |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drive or battery pack environments with fast voltage transients |
| Supply Voltage Range | 3.0–3.6 V or 4.5–5.5 V per side - enables flexible level translation between 3.3 V microcontrollers and 5 V peripherals |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive applications including battery management and traction inverters |
| Power Consumption | 1.1 mA/channel @ 1 Mbps (3.3 V), 3.7 mA/channel @ 10 Mbps (5 V) - reduces thermal load in space-constrained modules |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N-8) with creepage/clearance ≥5.5 mm and reinforced insulation barrier between sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VDD1) | Primary-side power supply | Accepts 3.0–3.6 V or 4.5–5.5 V; powers input-side logic and transmitter circuitry |
| Pin 2 (GND1) | Primary-side ground reference | Return path for VDD1; must be isolated from GND2 by PCB layout and physical spacing |
| Pin 3 (INA) | Channel A input | Unidirectional data input from primary-side controller; drives isolated output OUTA |
| Pin 4 (INB) | Channel B input | Unidirectional data input from primary-side controller; drives isolated output OUTB |
| Pin 5 (OUTA) | Channel A output | Isolated output referenced to VDD2/GND2; compatible with 3.3 V or 5 V logic thresholds |
| Pin 6 (OUTB) | Channel B output | Isolated output referenced to VDD2/GND2; supports independent signal routing to secondary-side peripherals |
| Pin 7 (GND2) | Secondary-side ground reference | Return path for VDD2; forms isolated domain with VDD2 and outputs OUTA/OUTB |
| Pin 8 (VDD2) | Secondary-side power supply | Accepts 3.0–3.6 V or 4.5–5.5 V; powers output-side logic and receiver circuitry |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler wear-out mechanisms and enables >50-year insulation lifetime per IEC 60747-17 |
| Automotive qualification | AEC-Q100 Grade 1 compliance ensures reliability in harsh thermal and EMI environments of HEV/EV systems |
| Enhanced ESD robustness | System-level IEC 61000-4-2/4-4/4-5 performance achieved via internal layout and process hardening-not just component-level rating |
| Bidirectional capability via dual unidirectional channels | Enables full-duplex SPI isolation (e.g., SCLK/MOSI on one channel, MISO on the other) without direction-control pins |
| Voltage translation | Native 3.3 V ↔ 5 V level shifting across isolation barrier removes need for external level shifters in mixed-voltage designs |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
Use Scenario: Isolating SPI bus between MCU and isolated ADC or DAC in battery monitoring unit. IC Role / Device Role / Timing Role: Dual-channel unidirectional isolator handling SCLK/MOSI (Ch A) and MISO (Ch B) with matched propagation delay. Use Value: Maintains SPI timing integrity (≤3 ns skew) while blocking ground loops and common-mode noise from high-voltage battery strings. |
Use Scenario: Galvanically isolating RS-485 transceiver control lines and data paths in motor drive CAN/SPI coexistence networks. IC Role / Device Role / Timing Role: Provides separate isolated paths for DE/RE control and differential data signals with <25 ns max propagation delay. Use Value: Prevents bus faults from propagating to host controller while supporting 25 Mbps burst signaling for diagnostics and firmware updates. |
| Hybrid Electric Vehicle Battery Monitor | Digital Field Bus Isolation |
Use Scenario: Signal isolation between cell voltage measurement ICs and central BMS microcontroller in 400–800 V traction battery packs. IC Role / Device Role / Timing Role: Reinforced isolator rated for 125°C ambient and 2500 VRMS working voltage, enabling direct placement near battery modules. Use Value: Meets IEC 62368-1 and UL 1577 safety standards for functional insulation in Class III equipment with no additional creepage augmentation required. |
Use Scenario: Isolating Modbus RTU or Profibus DP signals between PLC master and field devices in factory automation. IC Role / Device Role / Timing Role: Dual-channel isolator handling TX/RX pair with high CMTI (>25 kV/µs) to reject switching noise from adjacent VFDs or solenoids. Use Value: Enables reliable communication over long cable runs in electrically noisy industrial settings without repeaters or shielding upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8621ED-B-IS | Capacitive isolation; 5000 VRMS rating; 150 Mbps max data rate; 2.5 kV RMS surge rating | Higher data rate but lower system-level ESD robustness; not AEC-Q100 qualified | Preferred for non-automotive industrial systems requiring >25 Mbps or higher surge immunity |
| ISO7721DWR | Capacitive isolation; 5000 VRMS; 100 Mbps; 100 kV/µs CMTI; operates down to −55°C | Superior CMTI and extended temperature range; lacks IEC 61000-4-x system-level ESD enhancements | Best for aerospace or extreme-environment applications where transient immunity outweighs ESD hardening needs |
Compared with SI8621ED-B-IS and ISO7721DWR, the ADUM3201WBRZ trades peak data rate and CMTI for certified automotive qualification, enhanced system-level ESD resilience, and proven reliability in battery monitoring and motor control under sustained 125°C operation.
Availability
ADUM3201WBRZ is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitors, industrial RS-485 networks, and SPI-isolated data acquisition systems requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for ADUM3201WBRZ 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, communications, and automotive markets.
The ADuM3200/ADuM3201 family was designed specifically for cost-sensitive, size-constrained automotive and industrial isolation applications requiring robustness beyond basic component-level safety ratings-emphasizing system-level ESD, thermal stability, and interoperability with legacy 3.3 V/5 V logic.
FAQ
What is the maximum operating temperature for ADUM3201WBRZ?
The ADUM3201WBRZ is rated for continuous operation from −40°C to +125°C and is AEC-Q100 Grade 1 qualified. This makes it suitable for under-hood automotive applications such as battery management systems and motor control units where ambient temperatures exceed 105°C. The device maintains full 25 Mbps data rate and timing specifications across this full range, as verified in Tables 13–24 of the Rev. G datasheet.
Does ADUM3201WBRZ support bidirectional communication on a single channel?
No, ADUM3201WBRZ implements two unidirectional channels (INA→OUTA and INB→OUTB). Bidirectional protocols like I²C require external logic or a different isolator (e.g., ADUM1250). However, full-duplex SPI can be implemented using one channel for SCLK/MOSI and the other for MISO-enabling effective bidirectional data flow without direction-control pins. The ADUM3201WBRZ datasheet confirms this configuration in Application Information section.
What safety certifications does ADUM3201WBRZ hold?
ADUM3201WBRZ is certified to UL 1577 (2500 VRMS for 1 minute), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, CQC GB4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 VPEAK. These approvals cover reinforced insulation for functional and basic safety in end equipment. Certification documentation is available from Analog Devices' website under product support for ADUM3201WBRZ.
Can ADUM3201WBRZ operate with different supply voltages on each side?
Yes, ADUM3201WBRZ supports mixed-supply operation: VDD1 and VDD2 may be independently set to either 3.3 V (3.0–3.6 V) or 5 V (4.5–5.5 V). Tables 7, 10, 19, and 22 in the datasheet specify performance for 5 V/3.3 V and 3.3 V/5 V configurations-including propagation delay, PWD, and supply current. This enables native level translation without external components.
How does the enhanced ESD performance of ADUM3201WBRZ differ from standard ADUM3201?
ADUM3201WBRZ incorporates layout and process-level enhancements that improve system-level IEC 61000-4-2 (ESD), -4-4 (EFT), and -4-5 (surge) immunity-beyond the component-level rating. Unlike standard ADUM3201, the "W" grade is specifically characterized and qualified for automotive ESD stress testing per ISO 10605. This is documented in the General Description and AN-793 application note referenced in the ADUM3201WBRZ datasheet.
ADUM3201WBRZ 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:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM3201WBRZ FAQ
1.How can I place an order for ADUM3201WBRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201WBRZ 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 ADUM3201WBRZ reliable?
The price and inventory of ADUM3201WBRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201WBRZ is usually 5 days.
3.What payment methods are accepted for ADUM3201WBRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201WBRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201WBRZ?
ADUM3201WBRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201WBRZ 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 ADUM3201WBRZ?
For technical support, including ADUM3201WBRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201WBRZ requirements.
6.How does Aetrix verify that ADUM3201WBRZ is sourced from the original manufacturer or authorized distributors?
All ADUM3201WBRZ 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 ADUM3201WBRZ meets industry standards.
7.What is the process for return or replacement of ADUM3201WBRZ?
All ADUM3201WBRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201WBRZ, 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 ADUM3201WBRZ part is unused and in its original packaging.
Return procedure for ADUM3201WBRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3201WBRZ Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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