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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM141E1WBRQZ-RL7

Name: ADUM141E1WBRQZ-RL7
Brand: Analog Devices Inc.
SKU: ADUM141E1WBRQZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM141E1WBRQZ-RL7

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM141E1WBRQZ-RL7.pdf

Description:: DGTL ISO 3000VRMS 4CH GP 16QSOP

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Product details

Overview

ADUM141E1WBRQZ-RL7 from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.0 kV_RMS galvanic isolation between two independent 1.8 V to 5 V logic domains. It delivers 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and high common-mode transient immunity of 100 kV/µs - enabling robust SPI and data converter isolation in industrial motor drives.

For engineers reviewing the ADUM141E1WBRQZ-RL7 datasheet, ADUM141E1WBRQZ-RL7 pinout, ADUM141E1WBRQZ-RL7 application, or ADUM141E1WBRQZ-RL7 equivalent, key selection criteria include fail-safe output state (high), AEC-Q100 qualification, SOIC-16 wide-body package with 7.8 mm creepage, and backward compatibility with ADuM1400-series footprints.

Technical Context

The ADUM141E1WBRQZ-RL7 implements four independent unidirectional isolation channels using monolithic air-core transformers and integrated CMOS interface circuitry. Each channel supports dc-correct operation without input transitions and features programmable disable inputs for power-sensitive systems.

It integrates undervoltage lockout (UVLO) on both sides (1.6 V threshold), supports level translation across the isolation barrier, and offers two fail-safe output states - this variant defaults to high when input power is absent or disabled.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	3.0 kV_RMS for 1 minute - meets UL 1577, IEC/EN/CSA 60950-1, and IEC 60601-1 safety standards
Data Rate	150 Mbps maximum guaranteed - supports high-speed SPI, RS-485, and isolated ADC interfaces
Propagation Delay	13 ns max at 5 V - enables tight timing budgets in real-time control loops
Common-Mode Transient Immunity	100 kV/µs - ensures reliable operation in noisy industrial environments with fast-switching power electronics
Supply Voltage Range	1.8 V to 5 V per side - allows direct interfacing with low-voltage microcontrollers and legacy 5 V peripherals
Fail-Safe Output State	High - outputs default to logic high during power loss or disable, critical for safe system shutdown
Operating Temperature	−40°C to +125°C - qualified for automotive under-hood and industrial ambient conditions

Pinout & Package

ADUM141E1WBRQZ-RL7 uses a RoHS-compliant 16-lead SOIC_W (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 supply	Power for input-side logic and isolation transmitter; accepts 1.8–5 V
GND1	Primary-side ground	Reference for input-side signals and VDD1; must be separated from GND2
INA, INB, INC, IND	Input signal terminals	Unidirectional logic inputs referenced to VDD1/GND1; support CMOS levels
DISABLE1	Primary-side disable control	Pull-high to disable all outputs; internal 15 µA pull-down current
VDD2	Secondary-side supply	Power for output-side logic and isolation receiver; accepts 1.8–5 V
GND2	Secondary-side ground	Reference for output-side signals and VDD2; galvanically isolated from GND1
OUTA, OUTB, OUTC, OUTD	Output signal terminals	Unidirectional logic outputs referenced to VDD2/GND2; fail-safe high
VE2	Secondary-side enable control	Pull-low to enable outputs; internal −3 µA pull-up current

Key Features

Feature	Design Value
iCoupler® transformer isolation	Eliminates LED aging and CTR degradation of optocouplers; enables >50-year insulation lifetime
Backward pin compatibility	Direct drop-in replacement for ADuM1400/ADuM1401/ADuM1402 in same SOIC_W footprint
AEC-Q100 qualification	Qualified for automotive applications including engine control, battery management, and charging systems
Dual-supply level translation	Allows 1.8 V MCU to drive 5 V peripheral across isolation barrier without external level shifters
Low dynamic power	7.7 mA typical supply current at 100 Mbps (side 1) and 11.2 mA (side 2) - reduces thermal load in dense layouts

Applications

Industrial Motor Drives	SPI-Isolated Data Acquisition
Use Scenario: Isolating gate driver control signals and feedback from high-voltage IGBT/SiC inverters operating at ±600 V bus voltages. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM enable/disable and fault signals with <13 ns propagation delay and 100 kV/µs CMTI. Use Value: Prevents ground loop noise from corrupting timing-critical gate drive signals, enabling stable 20 kHz+ switching frequencies.	Use Scenario: Isolating SPI bus between an ARM Cortex-M7 host MCU and isolated 16-bit SAR ADC in a high-precision sensor module. IC Role / Device Role / Timing Role: Transmitting SCLK, MOSI, MISO, and CS across isolation barrier while maintaining 150 Mbps data throughput and sub-3 ns pulse width distortion. Use Value: Enables full-resolution ADC sampling at 1 MSPS without clock skew or bit errors caused by ground potential differences.
Automotive Battery Management Systems	Isolated Industrial Fieldbus Nodes
Use Scenario: Communicating cell voltage and temperature measurements from high-side monitoring ICs to a central BMS controller across 400–800 V battery stacks. IC Role / Device Role / Timing Role: Providing reinforced 3.0 kV_RMS isolation with AEC-Q100 Grade 1 qualification and fail-safe high outputs during power interruption. Use Value: Ensures functional safety compliance (ISO 26262 ASIL-B) and prevents erroneous discharge commands during transient faults.	Use Scenario: Isolating RS-485 transceivers in PROFIBUS DP or Modbus RTU nodes deployed in factory automation with variable-frequency drives nearby. IC Role / Device Role / Timing Role: Protecting UART-level signals before RS-485 driver/receiver; supports 25 Mbps UART rates with 15 ns max delay at 1.8 V. Use Value: Maintains communication integrity in EMI-heavy environments where common-mode transients exceed 5 kV/µs.

Industrial Motor Drives

SPI-Isolated Data Acquisition

Use Scenario: Isolating gate driver control signals and feedback from high-voltage IGBT/SiC inverters operating at ±600 V bus voltages.

IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM enable/disable and fault signals with <13 ns propagation delay and 100 kV/µs CMTI.

Use Value: Prevents ground loop noise from corrupting timing-critical gate drive signals, enabling stable 20 kHz+ switching frequencies.

Use Scenario: Isolating SPI bus between an ARM Cortex-M7 host MCU and isolated 16-bit SAR ADC in a high-precision sensor module.

IC Role / Device Role / Timing Role: Transmitting SCLK, MOSI, MISO, and CS across isolation barrier while maintaining 150 Mbps data throughput and sub-3 ns pulse width distortion.

Use Value: Enables full-resolution ADC sampling at 1 MSPS without clock skew or bit errors caused by ground potential differences.

Automotive Battery Management Systems

Isolated Industrial Fieldbus Nodes

Use Scenario: Communicating cell voltage and temperature measurements from high-side monitoring ICs to a central BMS controller across 400–800 V battery stacks.

IC Role / Device Role / Timing Role: Providing reinforced 3.0 kV_RMS isolation with AEC-Q100 Grade 1 qualification and fail-safe high outputs during power interruption.

Use Value: Ensures functional safety compliance (ISO 26262 ASIL-B) and prevents erroneous discharge commands during transient faults.

Use Scenario: Isolating RS-485 transceivers in PROFIBUS DP or Modbus RTU nodes deployed in factory automation with variable-frequency drives nearby.

IC Role / Device Role / Timing Role: Protecting UART-level signals before RS-485 driver/receiver; supports 25 Mbps UART rates with 15 ns max delay at 1.8 V.

Use Value: Maintains communication integrity in EMI-heavy environments where common-mode transients exceed 5 kV/µs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad digital isolator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM141D1WBRQZ-RL7	Same SOIC_W package and pinout; fail-safe output state is low instead of high	Used where system safety requires outputs to default low during power loss (e.g., disable-on-fault actuators)	Select when fail-safe behavior must assert logic low rather than high
SI8641ED-B-IS	Capacitive isolation; 3.75 kV_RMS; 150 Mbps; SOIC_W package; no AEC-Q100 qualification	Lower cost alternative for non-automotive industrial use; lacks automotive reliability validation	Choose for cost-sensitive non-automotive designs requiring higher isolation voltage

Compared with ADUM141D1WBRQZ-RL7, the ADUM141E1WBRQZ-RL7 provides complementary fail-safe polarity; compared with SI8641ED-B-IS, it adds AEC-Q100 qualification and iCoupler reliability but at higher unit cost.

Availability

ADUM141E1WBRQZ-RL7 is available at Aetrix Electronics and suitable for industrial motor drives, automotive battery management systems, and isolated data acquisition requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for ADUM141E1WBRQZ-RL7 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 ADuM141x family is designed specifically for high-reliability multichannel isolation in safety-critical systems, emphasizing low propagation delay, high CMTI, and regulatory compliance across automotive and medical standards.

FAQ

What is the isolation voltage rating of ADUM141E1WBRQZ-RL7?

The ADUM141E1WBRQZ-RL7 has a rated dielectric insulation voltage of 3.0 kV_RMS for 1 minute, certified to UL 1577, IEC/EN/CSA 60950-1, IEC/CSA 60601-1, and DIN EN IEC 60747-17 (VDE 0884-17). Its SOIC_W package provides 7.8 mm creepage and clearance, supporting reinforced insulation in high-voltage industrial and automotive systems.

Does ADUM141E1WBRQZ-RL7 support level translation between different supply voltages?

Yes, ADUM141E1WBRQZ-RL7 supports independent 1.8 V to 5 V supplies on each side, enabling seamless level translation - for example, a 1.8 V microcontroller can drive 5 V peripherals across the isolation barrier without external level shifters. Input thresholds scale with VDD (VIH = 0.7 × VDDx), and outputs swing rail-to-rail relative to their local VDD2.

What fail-safe behavior does ADUM141E1WBRQZ-RL7 exhibit during power loss?

ADUM141E1WBRQZ-RL7 is an "E1" variant, meaning its outputs transition to a pre-determined high state when either VDD1 or VDD2 is removed or when DISABLE1 is asserted. This fail-safe high behavior ensures safe deactivation of downstream drivers or latches in safety-critical applications like motor control or battery disconnect circuits.

Is ADUM141E1WBRQZ-RL7 pin-compatible with earlier ADuM1400-series isolators?

Yes, ADUM141E1WBRQZ-RL7 is explicitly pin-compatible with ADuM1400, ADuM1401, and ADuM1402 in the same SOIC_W package. This backward compatibility allows drop-in upgrades to improve data rate (to 150 Mbps), reduce propagation delay (to 13 ns), and add AEC-Q100 qualification without PCB redesign.

What is the maximum data rate guaranteed for ADUM141E1WBRQZ-RL7?

The ADUM141E1WBRQZ-RL7 guarantees a maximum data rate of 150 Mbps across all operating conditions (−40°C to +125°C, 1.8 V to 5 V supplies). This is validated with pulse width distortion <3 ns and jitter <490 ps p-p, making it suitable for high-speed SPI, isolated USB bridges, and real-time sensor interfaces.

ADUM141E1WBRQZ-RL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

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:: Automotive

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QSOP

ADUM141E1WBRQZ-RL7 FAQ

1.How can I place an order for ADUM141E1WBRQZ-RL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM141E1WBRQZ-RL7 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 ADUM141E1WBRQZ-RL7 reliable?

The price and inventory of ADUM141E1WBRQZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM141E1WBRQZ-RL7 is usually 5 days.

3.What payment methods are accepted for ADUM141E1WBRQZ-RL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM141E1WBRQZ-RL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM141E1WBRQZ-RL7?

ADUM141E1WBRQZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM141E1WBRQZ-RL7 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 ADUM141E1WBRQZ-RL7?

For technical support, including ADUM141E1WBRQZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM141E1WBRQZ-RL7 requirements.

6.How does Aetrix verify that ADUM141E1WBRQZ-RL7 is sourced from the original manufacturer or authorized distributors?

All ADUM141E1WBRQZ-RL7 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 ADUM141E1WBRQZ-RL7 meets industry standards.

7.What is the process for return or replacement of ADUM141E1WBRQZ-RL7?

All ADUM141E1WBRQZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM141E1WBRQZ-RL7, 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 ADUM141E1WBRQZ-RL7 part is unused and in its original packaging.

Return procedure for ADUM141E1WBRQZ-RL7:

1.Submit a request within 90 days.

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

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