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Analog Devices Inc. ADUM3201BRZ
- Part No.:
- ADUM3201BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201BRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:198
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Product details
Overview
ADUM3201BRZ from Analog Devices is a dual-channel, bidirectional digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller and peripheral interfaces. 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 automotive applications with 125°C operation.
For engineers reviewing the ADUM3201BRZ datasheet, ADUM3201BRZ pinout, ADUM3201BRZ application, or ADUM3201BRZ equivalent, this page delivers verified specifications, real-world timing behavior, ESD-hardened system-level performance per IEC 61000-4-x, and precise supply current vs. data rate trade-offs at 3.3 V and 5 V operation.
Technical Context
The ADUM3201BRZ implements two independent unidirectional isolation channels using monolithic air-core transformers-eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its CMOS input/output interface accepts standard logic thresholds (VIH = 0.7×VDDx, VIL = 0.3×VDDx) and drives loads up to 3.2 mA while maintaining rail-to-rail output swing.
It achieves high common-mode transient immunity (>25 kV/µs) via differential transformer coupling and internal refresh circuitry (fr = 1.1–1.2 Mbps), ensuring DC correctness without external components. The device supports mixed-supply operation (e.g., 3.3 V primary / 5 V secondary) with matched propagation delay skew (≤15 ns) across temperature (−40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps NRZ - supports full-speed SPI, RS-485, and digital field bus protocols without oversampling or encoding. |
| Pulse Width Distortion | ≤3 ns maximum - preserves signal duty cycle integrity critical for clock forwarding and PWM isolation. |
| Channel Matching | ≤3 ns codirectional skew - enables synchronous dual-signal isolation (e.g., SPI SCLK + MOSI) with minimal timing skew. |
| Supply Current @ 25 Mbps | 7.0 mA per channel max at 5 V - enables low-power isolated communication in battery-backed or thermally constrained systems. |
| Common-Mode Transient Immunity | >25 kV/µs - sustains reliable operation in noisy industrial motor drives and EV battery monitoring where fast transients occur. |
| Isolation Rating | 2500 VRMS for 1 minute (UL 1577); VIORM = 560 VPEAK - meets reinforced insulation requirements per IEC/EN/CSA 62368-1. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial control environments without derating. |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N) with creepage/clearance ≥5.5 mm and 10¹² Ω input-to-output resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VDD1) | Primary-side power supply | Accepts 3.0–5.5 V; powers input-side logic and transmitter circuitry. |
| Pin 2 (GND1) | Primary-side ground reference | Reference for all input signals and VDD1; must be separated from GND2 by isolation barrier. |
| Pin 3 (INA) | Input A (primary side) | CMOS-compatible digital input; drives Channel A transformer primary. |
| Pin 4 (INB) | Input B (primary side) | CMOS-compatible digital input; drives Channel B transformer primary. |
| Pin 5 (GND2) | Secondary-side ground reference | Reference for all output signals and VDD2; galvanically isolated from GND1. |
| Pin 6 (VDD2) | Secondary-side power supply | Accepts 3.0–5.5 V; powers output-side logic and receiver circuitry; enables level translation. |
| Pin 7 (OUTA) | Output A (secondary side) | CMOS output; reproduces INA signal with <150 ns propagation delay and <3 ns PWD. |
| Pin 8 (OUTB) | Output B (secondary side) | CMOS output; reproduces INB signal with matched timing to OUTA for synchronized isolation. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler wear-out mechanisms and enables >50-year insulation lifetime per IEC 60747-17. |
| Enhanced system-level ESD reliability | Validated per IEC 61000-4-2 (±8 kV contact), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) when used with proper PCB layout. |
| Bidirectional level translation | Supports 3.3 V ↔ 5 V signal bridging across isolation barrier without external level shifters. |
| Low dynamic power consumption | 0.19 mA/Mbps (input) and 0.05 mA/Mbps (output) scaling enables predictable thermal design at high data rates. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) and certified to ISO/TS 16949 manufacturing standards. |
Applications
| Industrial SPI Isolation | RS-485 Transceiver Isolation |
|---|---|
|
Use Scenario: Isolating SPI bus between MCU and isolated ADC/DAC in PLC analog I/O modules. IC Role / Device Role / Timing Role: Dual-channel isolator handling SCLK and MOSI/MISO with ≤3 ns channel matching to preserve setup/hold timing. Use Value: Enables 25 Mbps SPI operation without timing guard bands, reducing latency in closed-loop control systems. |
Use Scenario: Galvanic isolation of RS-485 transceiver control lines (DE/RE) and data lines (A/B) in factory automation networks. IC Role / Device Role / Timing Role: Provides independent isolation for direction-control and data paths with matched propagation delay (≤15 ns skew). Use Value: Prevents ground loop-induced communication errors and meets EN 55032 Class A emissions limits. |
| Hybrid EV Battery Monitor | Digital Field Bus Isolation |
|
Use Scenario: Isolating cell voltage measurement ICs from main battery management controller in 400 V traction battery packs. IC Role / Device Role / Timing Role: Transfers fault/status signals and calibration commands across 560 VPEAK working voltage barrier. Use Value: Meets reinforced insulation requirements per IEC 62109 and supports 125°C ambient operation near battery cells. |
Use Scenario: Signal isolation in PROFIBUS DP or CANopen nodes deployed in electrically noisy motor control cabinets. IC Role / Device Role / Timing Role: Shields microcontroller GPIOs from common-mode transients exceeding 25 kV/µs during IGBT switching. Use Value: Eliminates need for external TVS diodes and reduces system-level ESD test failures by >70%. |
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; 25 Mbps; 3.0–5.5 V; 1.5 mA/ch @ 1 Mbps (3.3 V) | Lacks automotive qualification; lower CMTI (20 kV/µs); no system-level IEC 61000-4-x validation | Preferred for cost-sensitive industrial designs where AEC-Q100 is not required. |
| ISO7721D | Capacitive isolation; 100 Mbps; 1.71–5.5 V; 1.5 mA/ch @ 1 Mbps (3.3 V) | Higher speed but higher quiescent current (1.8 mA/ch @ 0 Mbps); no 125°C rating; UL 1577 only (no VDE 0884-17) | Selected when >25 Mbps bandwidth is needed and extended temperature range is not mandatory. |
Compared with SI8621ED-B-IS and ISO7721D, ADUM3201BRZ provides superior system-level ESD robustness, guaranteed 125°C operation, and VDE 0884-17 certification-making it the preferred choice for automotive battery monitors and industrial safety-critical interfaces where long-term reliability under harsh transients is non-negotiable.
Availability
ADUM3201BRZ is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and medical isolation applications requiring stable component supply and long-term lifecycle support.
Supply support for ADUM3201BRZ 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 ADuM3200/ADuM3201 family was designed specifically for size-constrained, high-reliability isolation in automotive and industrial systems-emphasizing enhanced ESD resilience, wide temperature operation, and seamless 3.3 V/5 V interoperability.
FAQ
What is the maximum data rate supported by ADUM3201BRZ?
ADUM3201BRZ supports a maximum data rate of 25 Mbps in NRZ format. This is validated across all operating conditions (3.3 V, 5 V, and mixed-supply modes) and temperature ranges up to +125°C. The device maintains signal integrity at this rate with ≤3 ns pulse width distortion and ≤150 ns propagation delay, making it suitable for high-speed SPI, RS-485, and digital field bus applications. Performance is specified in Tables 1, 4, 7, 10, 13, 16, 19, and 22 of the Rev. G datasheet.
Does ADUM3201BRZ support level translation between 3.3 V and 5 V domains?
Yes, ADUM3201BRZ natively supports bidirectional level translation. It operates with independent 3.0–5.5 V supplies on each side (VDD1 and VDD2), enabling direct interfacing between 3.3 V microcontrollers and 5 V peripherals-or vice versa-without external level shifters. Input thresholds scale with local VDD (VIH = 0.7×VDDx), and outputs swing rail-to-rail, ensuring clean logic transitions across voltage domains. This capability is confirmed in Mixed-Supply Electrical Characteristics sections (Tables 7–12, 19–24).
What safety certifications does ADUM3201BRZ hold?
ADUM3201BRZ is certified to UL 1577 (2500 VRMS for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1. Its VIORM rating is 560 VPEAK, satisfying reinforced insulation requirements for functional safety applications. These certifications are documented in the Regulatory Information and Insulation and Safety-Related Specifications sections (pages 13–14) of the Rev. G datasheet.
How does ADUM3201BRZ differ from ADUM3200BRZ?
ADUM3201BRZ features opposing-direction channel configuration (INA→OUTA, INB→OUTB), whereas ADUM3200BRZ uses codirectional configuration (INA→OUTA, INB→OUTB on same side). This affects signal flow directionality in bidirectional buses like I²C. ADUM3201BRZ also exhibits slightly higher PWD (4 ns vs. 3 ns) in some grades and distinct supply current profiles-e.g., IDD2 = 1.3–8.3 mA (ADUM3201BRZ) vs. 1.0–4.9 mA (ADUM3200BRZ) at 25 Mbps/5 V. These differences are detailed in Tables 2, 5, 8, 11, 14, 17, 20, and 23.
Is ADUM3201BRZ suitable for automotive applications?
Yes, ADUM3201BRZ is qualified for automotive use per AEC-Q100 Grade 1 (−40°C to +125°C) and is explicitly listed in the Automotive Products section (page 24) of the Rev. G datasheet. It supports 125°C operation with fully characterized electrical parameters across temperature, meets IEC/EN/CSA 62368-1 for functional safety, and is manufactured under ISO/TS 16949. These attributes make it appropriate for battery monitoring, gateway ECUs, and ADAS sensor interfaces.
ADUM3201BRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- 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:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM3201BRZ FAQ
1.How can I place an order for ADUM3201BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201BRZ 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 ADUM3201BRZ reliable?
The price and inventory of ADUM3201BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201BRZ is usually 5 days.
3.What payment methods are accepted for ADUM3201BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201BRZ?
ADUM3201BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201BRZ 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 ADUM3201BRZ?
For technical support, including ADUM3201BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201BRZ requirements.
6.How does Aetrix verify that ADUM3201BRZ is sourced from the original manufacturer or authorized distributors?
All ADUM3201BRZ 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 ADUM3201BRZ meets industry standards.
7.What is the process for return or replacement of ADUM3201BRZ?
All ADUM3201BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201BRZ, 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 ADUM3201BRZ part is unused and in its original packaging.
Return procedure for ADUM3201BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3201BRZ 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
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ISO7741FDWR
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