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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM140D0BRWZ-RL

Name: ADUM140D0BRWZ-RL
Brand: Analog Devices Inc.
SKU: ADUM140D0BRWZ-RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM140D0BRWZ-RL

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: ADUM140D0BRWZ-RL.pdf

Description:: DGTL ISO 3750VRMS 4CH GP 16SOIC

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Product details

Overview

ADUM140D0BRWZ-RL from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.75 kV_RMS reinforced isolation in a wide-body SOIC-16 package. It supports 150 Mbps data rate, 13 ns max propagation delay at 5 V, and operates across 1.8 V to 5 V supply rails with level translation. It is used in isolated SPI interfaces for industrial PLCs where high CMTI (>100 kV/µs) and AEC-Q100 qualification are required.

For engineers reviewing the ADUM140D0BRWZ-RL datasheet, ADUM140D0BRWZ-RL pinout, ADUM140D0BRWZ-RL application, or ADUM140D0BRWZ-RL equivalent, this page delivers verified specifications, fail-safe output behavior, insulation ratings per VDE 0884-17, and real-world use context for safety-critical signal isolation in motor drives and medical equipment.

Technical Context

The ADUM140D0BRWZ-RL implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, enabling dc-correct operation without input transitions. Its architecture ensures tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), critical for synchronized timing in isolated ADC/DAC interfaces.

It features dual supply domains (VDD1/VDD2), undervoltage lockout (1.5 V–1.6 V thresholds), and two fail-safe output states (high or low) selected by part variant. The RW-16 wide-body SOIC package provides 7.8 mm creepage/clearance, meeting IEC 60601-1 and IEC 61010-1 requirements for medical and test equipment.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	3.75 kV_RMS for 1 minute - enables reinforced isolation in 250 V_RMS working voltage systems per IEC 60601-1.
Data Rate	150 Mbps maximum - supports high-speed SPI clocking up to 75 MHz with guaranteed timing margin.
Propagation Delay	13 ns max at 5 V - ensures sub-15 ns latency for real-time control loop feedback paths.
CMTI	100 kV/µs minimum - maintains signal integrity during fast-switching transients in inverters and gate drivers.
Supply Range	1.8 V to 5 V per side - allows direct interfacing between 1.8 V FPGAs and 3.3 V/5 V microcontrollers without level shifters.
Fail-Safe Output	Low-state default when input power is absent - prevents undefined logic states in safety-monitored circuits.
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive and industrial ambient environments.
Regulatory Certifications	UL 1577, VDE 0884-17 (VIORM = 565 V_PEAK), IEC 60950-1, IEC 60601-1, IEC 61010-1 - meets global safety standards for medical, industrial, and test equipment.

Pinout & Package

ADUM140D0BRWZ-RL is housed in a 16-lead, RoHS-compliant, wide-body SOIC (RW-16) package with 7.8 mm creepage and clearance, optimized for reinforced isolation in high-voltage applications.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side power supply	Supplies input-side logic (pins 1–8); supports 1.8 V–5 V; UVLO active below 1.5 V.
GND1	Primary-side ground reference	Reference for input-side signals; must be separated from GND2 by ≥7.8 mm PCB clearance.
INA, INB, INC, IND	Input channels A–D	CMOS-compatible inputs accepting 1.8 V–5 V logic; no external pull-ups required.
VDD2	Secondary-side power supply	Supplies output-side logic (pins 9–16); independent of VDD1; enables bidirectional level translation.
GND2	Secondary-side ground reference	Reference for output-side signals; galvanically isolated from GND1; defines isolation barrier.
OUTA, OUTB, OUTC, OUTD	Output channels A–D	CMOS outputs with rail-to-rail swing; fail-safe low when VDD1 is unpowered or DISABLE1 asserted.
DISABLE1	Input-side disable control	Pull-high to disable all inputs; pulls outputs to fail-safe state; requires 9–15 µA pull-down current.
VE2	Output-enable control (secondary side)	Pull-low to tristate all outputs; internal 3 µA pull-up; enables shared-bus isolation in multi-device systems.

Key Features

Feature	Design Value
iCoupler® transformer isolation	Replaces optocouplers with 50-year lifetime, no LED aging, and guaranteed dc correctness without input toggling.
100 kV/µs CMTI	Rejects fast common-mode noise from IGBT switching in motor drives, preventing false triggering in isolated gate drivers.
1.8 V to 5 V dual-supply operation	Eliminates external level shifters when interfacing low-voltage FPGAs with legacy 5 V peripherals in industrial I/O modules.
AEC-Q100 Grade 1 qualification	Validated for automotive under-hood applications including battery management system (BMS) communication isolation.
Fail-safe low output	Ensures defined logic state during power loss or reset, critical for functional safety in ISO 26262 ASIL-B designs.
VDE 0884-17 certification	Supports reinforced insulation with VIORM = 565 V_PEAK, enabling compliance in Class I medical devices per IEC 60601-1.

Applications

Industrial Motor Drives	SPI Isolation for Precision ADCs
Use Scenario: Isolating PWM signals and fault feedback between MCU and three-phase inverter gate drivers in servo drives. IC Role / Device Role / Timing Role: Quad-channel isolator transmitting gate enable, direction, and overcurrent status across 3.75 kV barrier with <13 ns latency. Use Value: Prevents ground-loop noise from disrupting control timing while maintaining 100 kV/µs immunity during IGBT switching transients.	Use Scenario: Isolating serial interface between isolated precision SAR ADC (e.g., AD7606) and host processor in data acquisition systems. IC Role / Device Role / Timing Role: Bidirectional SPI clock/data isolation with matched propagation delay (<3 ns skew) preserving sampling synchronization. Use Value: Enables 16-bit accuracy by eliminating timing jitter and ground bounce that would otherwise degrade ENOB in isolated measurement front-ends.
Medical Patient Monitoring	Automotive Battery Management
Use Scenario: Isolating ECG/EEG analog front-end digital control lines from main system processor in Class I patient-connected devices. IC Role / Device Role / Timing Role: Reinforced isolation for SPI configuration and status reporting, certified to IEC 60601-1 and VDE 0884-17. Use Value: Meets mandatory creepage (7.8 mm) and VIORM (565 V_PEAK) requirements for patient safety without adding discrete isolation components.	Use Scenario: Isolating cell voltage monitoring IC (e.g., AD7280A) daisy-chain communication in high-voltage EV battery packs (up to 800 V). IC Role / Device Role / Timing Role: Robust SPI isolation with AEC-Q100 Grade 1 rating and −40°C to +125°C operation across module stack. Use Value: Guarantees reliable BMS communication under thermal stress and EMI exposure, supporting ASIL-B functional safety goals.

Industrial Motor Drives

SPI Isolation for Precision ADCs

Use Scenario: Isolating PWM signals and fault feedback between MCU and three-phase inverter gate drivers in servo drives.

IC Role / Device Role / Timing Role: Quad-channel isolator transmitting gate enable, direction, and overcurrent status across 3.75 kV barrier with <13 ns latency.

Use Value: Prevents ground-loop noise from disrupting control timing while maintaining 100 kV/µs immunity during IGBT switching transients.

Use Scenario: Isolating serial interface between isolated precision SAR ADC (e.g., AD7606) and host processor in data acquisition systems.

IC Role / Device Role / Timing Role: Bidirectional SPI clock/data isolation with matched propagation delay (<3 ns skew) preserving sampling synchronization.

Use Value: Enables 16-bit accuracy by eliminating timing jitter and ground bounce that would otherwise degrade ENOB in isolated measurement front-ends.

Medical Patient Monitoring

Automotive Battery Management

Use Scenario: Isolating ECG/EEG analog front-end digital control lines from main system processor in Class I patient-connected devices.

IC Role / Device Role / Timing Role: Reinforced isolation for SPI configuration and status reporting, certified to IEC 60601-1 and VDE 0884-17.

Use Value: Meets mandatory creepage (7.8 mm) and VIORM (565 V_PEAK) requirements for patient safety without adding discrete isolation components.

Use Scenario: Isolating cell voltage monitoring IC (e.g., AD7280A) daisy-chain communication in high-voltage EV battery packs (up to 800 V).

IC Role / Device Role / Timing Role: Robust SPI isolation with AEC-Q100 Grade 1 rating and −40°C to +125°C operation across module stack.

Use Value: Guarantees reliable BMS communication under thermal stress and EMI exposure, supporting ASIL-B functional safety goals.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM141D0BRWZ-RL	Same RW-16 package and 3.75 kV_RMS rating, but with different channel directionality (3 forward + 1 reverse vs. ADUM140D0's 4 forward).	Used where bidirectional SPI clocking or feedback path reversal is needed; not drop-in for pure unidirectional signal routing.	Select ADUM141D0 when reverse-direction channel is required for MISO or status return; verify truth table alignment with existing firmware.
SI8641ED-IS	4-channel, 3.75 kV_RMS, 150 Mbps, but uses capacitive isolation and lacks AEC-Q100 qualification.	Suitable for industrial automation but not automotive or medical applications requiring AEC-Q100 or IEC 60601-1.	Choose SI8641ED-IS only for cost-sensitive non-automotive/non-medical designs; confirm CMTI (75 kV/µs) suffices for target noise environment.

Compared with ADUM140D0BRWZ-RL, ADUM141D0BRWZ-RL offers reversed channel directionality for bidirectional protocols, while SI8641ED-IS trades AEC-Q100 and higher CMTI for lower unit cost-making ADUM140D0BRWZ-RL the optimal choice for safety-certified, high-noise, unidirectional isolation.

Availability

ADUM140D0BRWZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, medical patient monitors, and automotive battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADUM140D0BRWZ-RL 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision, power, and connectivity applications.

The ADuM140x series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for replacing optocouplers in safety-critical, high-noise, and space-constrained systems requiring long-term reliability and regulatory compliance.

FAQ

What is the isolation voltage rating of the ADUM140D0BRWZ-RL?

The ADUM140D0BRWZ-RL has a rated dielectric insulation voltage of 3.75 kV_RMS for 1 minute, achieved via its RW-16 wide-body SOIC package with 7.8 mm creepage and clearance. This rating complies with UL 1577 and VDE 0884-17 (VIORM = 565 V_PEAK), making it suitable for reinforced isolation in medical and industrial equipment.

Does the ADUM140D0BRWZ-RL support level translation between different supply voltages?

Yes, the ADUM140D0BRWZ-RL 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 seamless interfacing between 1.8 V FPGAs and 5 V microcontrollers without external level-shifting circuitry.

What fail-safe behavior does the ADUM140D0BRWZ-RL exhibit when input power is lost?

The ADUM140D0BRWZ-RL is a D0 variant, meaning its outputs default to logic low when VDD1 is unpowered or when the DISABLE1 pin is asserted. This fail-safe low state prevents undefined logic levels in safety-critical subsystems such as motor enable lines or fault-reporting paths.

Is the ADUM140D0BRWZ-RL qualified for automotive applications?

Yes, the ADUM140D0BRWZ-RL is AEC-Q100 qualified (Grade 1: −40°C to +125°C), making it suitable for automotive under-hood applications including battery management systems, onboard chargers, and isolated CAN gateway interfaces where high temperature and EMI resilience are required.

How does the ADUM140D0BRWZ-RL compare to optocouplers in terms of performance and reliability?

The ADUM140D0BRWZ-RL replaces optocouplers with iCoupler® transformer isolation, delivering 100 kV/µs CMTI (vs. typical 15 kV/µs for optos), 150 Mbps data rate (vs. <10 Mbps for most optos), and guaranteed dc correctness without input toggling. Its solid-state construction eliminates LED aging, ensuring >50-year lifetime and stable timing over temperature.

ADUM140D0BRWZ-RL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: iCoupler®

Package/Case:: 16-SOIC (0.295", 7.50mm 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:: 4/0

Channel Type:: Unidirectional

Voltage - Isolation:: 3750Vrms

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-SOIC

ADUM140D0BRWZ-RL FAQ

1.How can I place an order for ADUM140D0BRWZ-RL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM140D0BRWZ-RL 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 ADUM140D0BRWZ-RL reliable?

The price and inventory of ADUM140D0BRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM140D0BRWZ-RL is usually 5 days.

3.What payment methods are accepted for ADUM140D0BRWZ-RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM140D0BRWZ-RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM140D0BRWZ-RL?

ADUM140D0BRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM140D0BRWZ-RL 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 ADUM140D0BRWZ-RL?

For technical support, including ADUM140D0BRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM140D0BRWZ-RL requirements.

6.How does Aetrix verify that ADUM140D0BRWZ-RL is sourced from the original manufacturer or authorized distributors?

All ADUM140D0BRWZ-RL 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 ADUM140D0BRWZ-RL meets industry standards.

7.What is the process for return or replacement of ADUM140D0BRWZ-RL?

All ADUM140D0BRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM140D0BRWZ-RL, 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 ADUM140D0BRWZ-RL part is unused and in its original packaging.

Return procedure for ADUM140D0BRWZ-RL:

1.Submit a request within 90 days.

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

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