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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM141E0WBRQZ

Name: ADUM141E0WBRQZ
Brand: Analog Devices Inc.
SKU: ADUM141E0WBRQZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM141E0WBRQZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

Package:: 16-SSOP (0.154", 3.90mm Width)

Datasheet:: ADUM141E0WBRQZ.pdf

Description:: IC, AUTO ROBUST QUAD ISO, 3:1 CH

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Product details

Overview

ADUM141E0WBRQZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 3.0 kV_RMS galvanic isolation for signal integrity in noisy industrial and automotive environments. It supports up to 150 Mbps data rate, features 13 ns max propagation delay at 5 V, operates from 1.8 V to 5 V on both sides, and includes fail-safe high output configuration. It is used in isolated SPI interfaces for motor control systems.

For engineers reviewing the ADUM141E0WBRQZ datasheet, ADUM141E0WBRQZ pinout, ADUM141E0WBRQZ application, or ADUM141E0WBRQZ equivalent, key selection criteria include its 3.0 kV_RMS isolation rating, SOIC-16 wide-body (RW-16) package with 7.8 mm creepage/clearance, AEC-Q100 qualification, and guaranteed 150 Mbps operation across −40°C to +125°C.

Technical Context

The ADUM141E0WBRQZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture delivers tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), enabling precise timing in feedback loops and high-speed serial interfaces.

It integrates dual supply domains (VDD1/VDD2), supports 1.8 V–5 V level translation across the barrier, and features integrated undervoltage lockout (UVLO) with 1.5 V/1.6 V thresholds and 0.1 V hysteresis on both sides-critical for robust power sequencing in mixed-voltage systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	3.0 kV_RMS for 1 minute - meets UL 1577 and IEC/EN/CSA 60950-1 safety requirements for reinforced insulation in industrial equipment.
Max Data Rate	150 Mbps - guarantees reliable high-speed SPI, RS-485, or CAN FD signal isolation without bit errors under worst-case timing margins.
Propagation Delay	13 ns max at 5 V - enables sub-20 ns round-trip latency in closed-loop motor control or power converter feedback paths.
Common-Mode Transient Immunity	100 kV/µs - suppresses noise coupling in high-dv/dt environments like IGBT gate drivers or variable-frequency drives.
Operating Temperature	−40°C to +125°C - qualified per AEC-Q100 Grade 1, suitable for under-hood automotive and industrial ambient conditions.
Supply Voltage Range	1.8 V to 5 V on both sides - allows direct interfacing with low-voltage MCUs (e.g., ARM Cortex-M0+) and legacy 5 V peripherals without level shifters.
Fail-Safe Output	High - outputs default to logic high during power loss or input disable, preventing undefined states in safety-critical enable lines.

Pinout & Package

ADUM141E0WBRQZ uses a 16-lead RoHS-compliant SOIC_W (RW-16) wide-body package with 7.8 mm creepage and clearance, optimized for reinforced insulation in high-voltage applications.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side power supply	Supplies input-side logic and isolation transmitter; must be decoupled locally to maintain noise immunity.
GND1	Primary-side ground reference	Return path for VDD1; requires separate PCB plane from GND2 to preserve isolation barrier integrity.
INA, INB, INC, IND	Digital input channels A–D	Accept CMOS-level signals; VIH = 0.7×VDD1, VIL = 0.3×VDD1 - compatible with 1.8 V–5 V logic families.
VDD2	Secondary-side power supply	Supplies output-side logic and isolation receiver; enables bidirectional voltage translation across barrier.
GND2	Secondary-side ground reference	Return path for VDD2; electrically isolated from GND1; defines secondary-side logic reference.
OUTA, OUTB, OUTC, OUTD	Digital output channels A–D	Fail-safe high outputs; VOH ≥ VDD2 − 0.4 V at 4 mA load - drives standard CMOS loads directly.
DISABLE1	Input-side disable control	Pull-down enabled; asserts when tied to VDD1, forcing all inputs to high-impedance - useful for system-level power gating.
VE2	Output-enable control	Pull-up enabled; drives outputs low when pulled to GND2 - provides tristate capability for shared bus architectures.

Key Features

Feature	Design Value
iCoupler® transformer isolation	Eliminates LED aging and CTR degradation of optocouplers, ensuring >50-year lifetime and stable timing over temperature and life.
150 Mbps guaranteed data rate	Supports full-duplex SPI clocked at 75 MHz, enabling real-time ADC/DAC isolation in servo drives without protocol overhead.
100 kV/µs common-mode immunity	Prevents data corruption in 48 V–800 V systems with fast-switching SiC/GaN FETs, reducing need for external filtering.
AEC-Q100 Grade 1 qualification	Validated for automotive powertrain and chassis applications including battery management and EPS control modules.
SOIC_W package with 7.8 mm creepage	Meets reinforced insulation requirements for 600 V_RMS working voltage per IEC 60664-1, eliminating need for slotting or spacing adjustments.

Applications

Motor Control Feedback Isolation	SPI Isolation for Industrial ADCs
Use Scenario: Isolating encoder position signals and current-sense feedback in 3-phase inverter gate driver circuits. IC Role / Device Role / Timing Role: Quad-channel digital isolator transmitting PWM-modulated feedback and receiving fault signals with <13 ns delay asymmetry. Use Value: Enables precise current-loop timing synchronization and prevents ground-loop-induced offset drift in shunt-based sensing.	Use Scenario: Isolating high-resolution SAR ADCs (e.g., AD7606) from host microcontrollers in PLC analog input modules. IC Role / Device Role / Timing Role: Bidirectional SPI data isolator supporting 1 MSPS conversion rates with deterministic 15 ns max tPLH/tPHL. Use Value: Maintains DC accuracy by blocking noise coupling between noisy digital and sensitive analog ground domains.
Automotive Battery Management Systems	Isolated CAN FD Transceiver Interface
Use Scenario: Isolating cell voltage monitoring ICs (e.g., AD7280A) from MCU in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Unidirectional isolator for 16-bit voltage readback and daisy-chain command forwarding with fail-safe high defaults. Use Value: Ensures safe default state during MCU reset or brownout, preventing erroneous cell balancing commands.	Use Scenario: Isolating CAN FD controller (e.g., TJA1057) from physical transceiver in charging station communication interfaces. IC Role / Device Role / Timing Role: Signal isolator for TXD/RXD/CAN_STB lines, preserving 5 Mbps CAN FD timing integrity with <3 ns pulse width distortion. Use Value: Prevents ground potential differences from inducing bit errors in long cable runs while maintaining EMC compliance.

Motor Control Feedback Isolation

SPI Isolation for Industrial ADCs

Use Scenario: Isolating encoder position signals and current-sense feedback in 3-phase inverter gate driver circuits.

IC Role / Device Role / Timing Role: Quad-channel digital isolator transmitting PWM-modulated feedback and receiving fault signals with <13 ns delay asymmetry.

Use Value: Enables precise current-loop timing synchronization and prevents ground-loop-induced offset drift in shunt-based sensing.

Use Scenario: Isolating high-resolution SAR ADCs (e.g., AD7606) from host microcontrollers in PLC analog input modules.

IC Role / Device Role / Timing Role: Bidirectional SPI data isolator supporting 1 MSPS conversion rates with deterministic 15 ns max tPLH/tPHL.

Use Value: Maintains DC accuracy by blocking noise coupling between noisy digital and sensitive analog ground domains.

Automotive Battery Management Systems

Isolated CAN FD Transceiver Interface

Use Scenario: Isolating cell voltage monitoring ICs (e.g., AD7280A) from MCU in high-voltage EV battery packs.

IC Role / Device Role / Timing Role: Unidirectional isolator for 16-bit voltage readback and daisy-chain command forwarding with fail-safe high defaults.

Use Value: Ensures safe default state during MCU reset or brownout, preventing erroneous cell balancing commands.

Use Scenario: Isolating CAN FD controller (e.g., TJA1057) from physical transceiver in charging station communication interfaces.

IC Role / Device Role / Timing Role: Signal isolator for TXD/RXD/CAN_STB lines, preserving 5 Mbps CAN FD timing integrity with <3 ns pulse width distortion.

Use Value: Prevents ground potential differences from inducing bit errors in long cable runs while maintaining EMC compliance.

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
ADUM141D0WBRQZ	Same RW-16 package and 3.0 kV_RMS rating, but fail-safe output is low (not high).	Requires logic inversion in safety-critical enable paths where high-default is mandatory.	Select ADUM141E0WBRQZ when fail-safe high is required; use ADUM141D0WBRQZ only if downstream logic accepts low-default behavior.
SI8641ED-B-IS	3.75 kV_RMS isolation, SOIC-16 wide-body, but uses capacitive isolation and lacks AEC-Q100 qualification.	Not approved for automotive powertrain; higher EMI susceptibility in >100 MHz switching environments.	Choose SI8641ED-B-IS only for cost-sensitive industrial applications where AEC-Q100 is not mandated and 3.75 kV_RMS is needed.

Compared with ADUM141D0WBRQZ and SI8641ED-B-IS, ADUM141E0WBRQZ uniquely combines AEC-Q100 Grade 1 qualification, fail-safe high outputs, and 100 kV/µs CMTI-making it the only option validated for automotive motor control and battery monitoring where safety-state determinism is critical.

Availability

ADUM141E0WBRQZ is available at Aetrix Electronics and suitable for industrial motor drives, automotive battery management systems, and isolated data acquisition requiring stable component supply across extended temperature and regulatory compliance lifecycles.

Supply support for ADUM141E0WBRQZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.

The ADuM141x series targets high-reliability isolation in harsh environments, designed specifically for safety-critical signal transmission in motor control, energy storage, and automotive subsystems where galvanic separation and long-term stability are non-negotiable.

FAQ

What is the isolation voltage rating of the ADUM141E0WBRQZ?

The ADUM141E0WBRQZ has a rated dielectric insulation voltage of 3.0 kV_RMS for 1 minute, certified to UL 1577 and compliant with IEC/EN/CSA 60950-1, IEC/CSA 60601-1, and DIN EN IEC 60747-17 (VDE 0884-17). This applies to its RW-16 SOIC wide-body package with 7.8 mm creepage and clearance.

Does the ADUM141E0WBRQZ support level translation between different supply voltages?

Yes, the ADUM141E0WBRQZ supports true bidirectional level translation: VDD1 can operate from 1.8 V to 5 V independently of VDD2, which also ranges from 1.8 V to 5 V. This allows interfacing a 1.8 V FPGA I/O bank with a 3.3 V microcontroller SPI interface without external level shifters.

What is the fail-safe output behavior of the ADUM141E0WBRQZ?

The ADUM141E0WBRQZ has a fail-safe high output configuration: when VDD1 is unpowered or DISABLE1 is asserted, all four outputs (OUTA–OUTD) transition to and hold a logic high state. This prevents undefined or floating states in safety-critical enable lines such as IGBT gate drivers.

Is the ADUM141E0WBRQZ qualified for automotive applications?

Yes, the ADUM141E0WBRQZ is AEC-Q100 qualified for automotive applications (Grade 1, −40°C to +125°C), with full characterization across temperature, voltage, and lifetime stress tests. It is approved for use in battery management systems, electric power steering, and onboard chargers.

How does the ADUM141E0WBRQZ compare to optocouplers in terms of timing performance?

The ADUM141E0WBRQZ achieves 13 ns maximum propagation delay and ≤3 ns pulse width distortion at 5 V-over 10× faster and significantly more consistent than typical optocouplers (which often exceed 100 ns delay with >20 ns skew). Its transformer-based iCoupler® architecture eliminates LED aging and CTR variation, ensuring stable timing over 50+ years.

ADUM141E0WBRQZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: iCoupler®

Package/Case:: 16-SSOP (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Technology:: Magnetic Coupling

Type:: General Purpose

Isolated Power:: No

Number of Channels:: 4

Inputs - Side 1/Side 2:: 3/1

Channel Type:: Unidirectional

Voltage - Isolation:: 3000Vrms

Common Mode Transient Immunity (Min):: 75kV/µs

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 13ns, 13ns

Pulse Width Distortion (Max):: 3ns

Rise / Fall Time (Typ):: 2.5ns, 2.5ns

Voltage - Supply:: 1.7V ~ 5.5V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QSOP

ADUM141E0WBRQZ FAQ

1.How can I place an order for ADUM141E0WBRQZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM141E0WBRQZ 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 ADUM141E0WBRQZ reliable?

The price and inventory of ADUM141E0WBRQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM141E0WBRQZ is usually 5 days.

3.What payment methods are accepted for ADUM141E0WBRQZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM141E0WBRQZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM141E0WBRQZ?

ADUM141E0WBRQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM141E0WBRQZ 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 ADUM141E0WBRQZ?

For technical support, including ADUM141E0WBRQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM141E0WBRQZ requirements.

6.How does Aetrix verify that ADUM141E0WBRQZ is sourced from the original manufacturer or authorized distributors?

All ADUM141E0WBRQZ 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 ADUM141E0WBRQZ meets industry standards.

7.What is the process for return or replacement of ADUM141E0WBRQZ?

All ADUM141E0WBRQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM141E0WBRQZ, 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 ADUM141E0WBRQZ part is unused and in its original packaging.

Return procedure for ADUM141E0WBRQZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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