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Analog Devices Inc. ADUM3201WCRZ
- Part No.:
- ADUM3201WCRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201WCRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,585
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Product details
Overview
ADUM3201WCRZ from Analog Devices is a dual-channel, reinforced digital isolator based on iCoupler® transformer technology, designed for bidirectional signal isolation across high-voltage barriers in industrial and automotive systems. It supports 3.3 V/5 V level translation, operates up to 25 Mbps (NRZ), delivers ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching, and is qualified for 125°C operation in automotive applications such as battery monitoring and isolated SPI interfaces.
For engineers reviewing the ADUM3201WCRZ datasheet, ADUM3201WCRZ pinout, ADUM3201WCRZ application, or ADUM3201WCRZ equivalent, this page provides verified specifications, package details, functional context, and validated alternative options - all aligned with Rev. G datasheet and automotive-grade qualification requirements.
Technical Context
The ADUM3201WCRZ implements two independent unidirectional isolation channels using monolithic air-core transformers, enabling galvanic separation without optocoupler limitations. Its architecture supports mixed-supply operation (e.g., 3.3 V on side 1, 5 V on side 2) and maintains precise timing integrity under high common-mode transients (>25 kV/µs).
It features enhanced system-level ESD reliability per IEC 61000-4-x, reinforced insulation rated at VISO = 2500 VRMS (1 min) and VIORM = 560 VPEAK, and meets DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, and IEC/EN/CSA 62368-1 safety standards - confirming suitability for functional isolation in ASIL-B–compatible automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps (NRZ); enables real-time isolation of high-speed digital buses like SPI and RS-485. |
| Pulse Width Distortion | ≤3 ns max; ensures minimal duty-cycle degradation for clock or PWM signals crossing the barrier. |
| Channel-to-Channel Matching | ≤3 ns max; critical for synchronized dual-signal paths such as differential encoder or ADC interface isolation. |
| Common-Mode Transient Immunity | >25 kV/µs; sustains reliable operation in noisy motor drive or battery pack environments. |
| Supply Voltage Range | 3.0–3.6 V or 4.5–5.5 V per side; supports flexible voltage translation between 3.3 V logic and 5 V peripherals. |
| Operating Temperature | −40°C to +125°C; qualified for under-hood automotive use including hybrid electric vehicle battery monitors. |
| Isolation Rating | VISO = 2500 VRMS (1 min), VIORM = 560 VPEAK; meets reinforced insulation requirements per IEC 62368-1 and VDE 0884-17. |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N-8), 5.3 mm × 6.2 mm footprint, creepage/clearance ≥8.3 mm, suitable for space-constrained PCB layouts in automotive ECUs and industrial PLC modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VDD1 (Side 1 Supply) | Provides power to input-side circuitry; accepts 3.0–3.6 V or 4.5–5.5 V. |
| Pin 2 | GND1 (Side 1 Ground) | Reference ground for input-side logic; must be separated from GND2 by isolation barrier. |
| Pin 3 | INA (Channel A Input) | Unidirectional input signal path from side 1 to side 2; compatible with CMOS levels. |
| Pin 4 | INB (Channel B Input) | Unidirectional input signal path from side 1 to side 2; independent of INA. |
| Pin 5 | GND2 (Side 2 Ground) | Reference ground for output-side logic; galvanically isolated from GND1. |
| Pin 6 | VDD2 (Side 2 Supply) | Provides power to output-side circuitry; independently configurable voltage domain. |
| Pin 7 | OUTA (Channel A Output) | Isolated output corresponding to INA; drives CMOS loads on side 2. |
| Pin 8 | OUTB (Channel B Output) | Isolated output corresponding to INB; fully independent timing and loading behavior. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging, CTR drift, and temperature-dependent nonlinearity inherent in optocouplers. |
| Enhanced system-level ESD robustness | Validated per IEC 61000-4-x; reduces board-level protection component count in harsh EMC environments. |
| Bidirectional communication support | Enabled via dual unidirectional channels (INA→OUTA + INB→OUTB), allowing full-duplex SPI data and control path isolation. |
| Low dynamic power consumption | As low as 0.10 mA/Mbps on input side at 3.3 V; extends thermal margin in dense automotive modules. |
| Automotive AEC-Q100 qualification | WA/WB/WC grade variants qualified to 125°C ambient; supports ASIL-B functional safety requirements. |
Applications
| Industrial SPI Isolation | Automotive Battery Monitor Interface |
|---|---|
|
Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between MCU and isolated ADC in motor drive control units. IC Role / Device Role / Timing Role: Dual-channel unidirectional isolator providing separate paths for clock/data (INA→OUTA) and feedback/data (INB→OUTB) with matched propagation delay. Use Value: Enables noise-immune, high-speed sensor data acquisition while maintaining <3 ns channel skew for time-critical current/voltage sampling. |
Use Scenario: Signal isolation between battery management system (BMS) controller and cell voltage monitoring ICs in 400 V–800 V EV battery packs. IC Role / Device Role / Timing Role: Reinforced isolator delivering 2500 VRMS working voltage and >25 kV/µs CMTI to withstand fast-switching transients during cell balancing. Use Value: Supports functional safety compliance (ASIL-B) and extends system lifetime by eliminating optocoupler wear-out mechanisms in continuous operation. |
| RS-485 Transceiver Isolation | Isolated Digital Fieldbus Node |
|
Use Scenario: Galvanic isolation of RS-485 driver/receiver control signals (DE, RE, RO) in factory automation networks. IC Role / Device Role / Timing Role: Dual-channel isolator translating 3.3 V MCU GPIOs to 5 V transceiver control inputs with precise edge alignment. Use Value: Prevents ground loop currents and bus faults from propagating to host controller, while sustaining 25 Mbps signaling for high-throughput Modbus RTU. |
Use Scenario: Isolating microcontroller UART and GPIO lines in distributed PROFIBUS or CANopen slave nodes deployed in electrically noisy plant floors. IC Role / Device Role / Timing Role: Provides bidirectional signal isolation with level-shifting capability (3.3 V ↔ 5 V) across the barrier for mixed-voltage fieldbus peripherals. Use Value: Reduces EMI-induced communication errors and eliminates need for external level shifters or optocoupler bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8620ED-B-IS | Capacitive isolation; 25 Mbps; VISO = 3750 VRMS; no automotive qualification; higher CMTI (75 kV/µs) | Preferred for industrial AC/DC power supplies where higher CMTI outweighs automotive compliance needs | Select when higher transient immunity is prioritized over AEC-Q100 qualification and 125°C operation. |
| ISO7720FDWR | Capacitive isolation; 100 Mbps; VISO = 5000 VRMS; AEC-Q100 Grade 1 (−40°C to +125°C); lower PWD (1 ns) | Suitable for next-gen EV inverters requiring >25 Mbps and tighter timing budgets | Choose when bandwidth >25 Mbps and sub-2 ns PWD are required, and layout allows larger SOIC-8 footprint. |
Compared with SI8620ED-B-IS and ISO7720FDWR, the ADUM3201WCRZ offers automotive-grade reliability at 25 Mbps with proven iCoupler transformer robustness in battery monitoring and SPI isolation, while trading off maximum speed and peak CMTI for broader supply flexibility and mature system-level ESD hardening.
Availability
ADUM3201WCRZ is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and isolated communications requiring stable component supply, long-term lifecycle support, and AEC-Q100–compliant sourcing.
Supply support for ADUM3201WCRZ 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 industrial, automotive, communications, and healthcare markets.
The ADUM3201WCRZ belongs to the ADuM320x automotive-qualified digital isolator family, engineered for functional safety-critical isolation in electric vehicles, battery monitoring, and industrial control systems operating up to 125°C.
FAQ
What is the maximum data rate supported by the ADUM3201WCRZ?
The ADUM3201WCRZ supports a maximum data rate of 25 Mbps in NRZ format, verified across all operating conditions including 125°C ambient and mixed 3.3 V/5 V supply configurations. This rate is sustained with guaranteed pulse width distortion ≤3 ns and propagation delay skew ≤3 ns, making it suitable for high-speed SPI, RS-485 control, and digital fieldbus isolation in automotive and industrial applications. The ADUM3201WCRZ achieves this performance using iCoupler® transformer technology without compromising timing integrity.
Does the ADUM3201WCRZ support level translation between different supply voltages?
Yes, the ADUM3201WCRZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently at either 3.3 V (3.0–3.6 V) or 5 V (4.5–5.5 V), enabling seamless interfacing between 3.3 V microcontrollers and 5 V peripherals such as RS-485 transceivers or legacy industrial sensors. This capability is built into the core architecture and validated across all temperature grades (WA/WB/WC) and data rates up to 25 Mbps. The ADUM3201WCRZ maintains specified timing and noise immunity regardless of supply combination.
What safety certifications does the ADUM3201WCRZ hold?
The ADUM3201WCRZ is certified to UL 1577 (2500 VRMS, 1 minute), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1, with reinforced insulation rating VIORM = 560 VPEAK. These certifications confirm its suitability for functional isolation in safety-critical automotive systems, including ASIL-B–compliant battery monitors and industrial equipment. The ADUM3201WCRZ meets these standards as tested per manufacturer's qualification protocol and documented in Rev. G datasheet.
How does the ADUM3201WCRZ differ from standard ADUM3201 variants?
The ADUM3201WCRZ is the automotive-grade variant of the ADUM3201, featuring WA/WB/WC temperature grading (−40°C to +125°C), enhanced system-level ESD robustness per IEC 61000-4-x, and AEC-Q100 qualification. Unlike commercial-grade ADUM3201 versions, the ADUM3201WCRZ undergoes extended burn-in and failure analysis, and its electrical specs (e.g., supply current, PWD, CMTI) are guaranteed across the full 125°C range. All ADUM3201WCRZ units are marked with "W" suffix and packaged in tape-and-reel per automotive logistics requirements.
Can the ADUM3201WCRZ replace optocouplers in existing designs?
Yes, the ADUM3201WCRZ is a direct functional replacement for dual-channel optocouplers such as HCPL-0723 or 6N137 in most isolation applications, offering superior performance: no current transfer ratio uncertainty, negligible aging, 10× lower power, and integrated level shifting. Pin compatibility requires verifying SOIC-8 layout (standard 150 mil width), but no external drivers or bias resistors are needed. The ADUM3201WCRZ simplifies design while improving reliability - especially in automotive and industrial environments where temperature stability and long-term consistency are critical.
ADUM3201WCRZ 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:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- 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
ADUM3201WCRZ FAQ
1.How can I place an order for ADUM3201WCRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201WCRZ 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 ADUM3201WCRZ reliable?
The price and inventory of ADUM3201WCRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201WCRZ is usually 5 days.
3.What payment methods are accepted for ADUM3201WCRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201WCRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201WCRZ?
ADUM3201WCRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201WCRZ 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 ADUM3201WCRZ?
For technical support, including ADUM3201WCRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201WCRZ requirements.
6.How does Aetrix verify that ADUM3201WCRZ is sourced from the original manufacturer or authorized distributors?
All ADUM3201WCRZ 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 ADUM3201WCRZ meets industry standards.
7.What is the process for return or replacement of ADUM3201WCRZ?
All ADUM3201WCRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201WCRZ, 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 ADUM3201WCRZ part is unused and in its original packaging.
Return procedure for ADUM3201WCRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3201WCRZ Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
Texas Instruments
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ISO7741FDWR
Texas Instruments
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