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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM142D0BRQZ

Name: ADUM142D0BRQZ
Brand: Analog Devices Inc.
SKU: ADUM142D0BRQZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM142D0BRQZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM142D0BRQZ.pdf

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

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Product details

Overview

ADUM142D0BRQZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.0 kV_RMS galvanic isolation between two independent 2-channel logic domains. 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 fail-safe high output configuration. It is used in SPI isolation for industrial PLCs where noise immunity and signal integrity across voltage domains are critical.

For engineers reviewing the ADUM142D0BRQZ datasheet, ADUM142D0BRQZ pinout, ADUM142D0BRQZ application, or ADUM142D0BRQZ equivalent, key selection factors include its 3.0 kV_RMS isolation rating, 100 kV/µs common-mode transient immunity, AEC-Q100 qualification, SOIC-16 narrow-body package, and guaranteed 150 Mbps operation with tight channel matching (≤3.0 ns).

Technical Context

The ADUM142D0BRQZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, eliminating LED aging and timing drift inherent in optocouplers. Its architecture ensures DC correctness without input transitions and supports dual-supply operation (VDD1/VDD2 = 1.8–5 V) for level translation across the isolation barrier.

It features two enable inputs (VE1, VE2), configurable fail-safe high outputs, undervoltage lockout (1.5 V/1.6 V thresholds), and meets DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation. The device is rated for continuous operation up to +125°C ambient and qualified per AEC-Q100 Grade 1.

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 and medical systems.
Data Rate	150 Mbps maximum - guarantees reliable high-speed serial communication (e.g., isolated SPI, RS-485 control) without bit errors under worst-case conditions.
Propagation Delay	13 ns max at 5 V - enables precise timing-critical applications such as motor control feedback loops and real-time sensor interfaces.
Common-Mode Transient Immunity	100 kV/µs - maintains signal integrity in noisy environments like variable-frequency drives and industrial power converters.
Supply Voltage Range	1.8 V to 5 V per side - allows interoperability between low-voltage microcontrollers (e.g., 1.8 V ARM cores) and 3.3 V/5 V peripherals across isolation barrier.
Operating Temperature	−40°C to +125°C - supports deployment in under-hood automotive ECUs and industrial edge controllers without derating.
Fail-Safe Output State	High - outputs default to logic high when input power is lost or inputs disabled, enabling safe system state retention in fault conditions.

Pinout & Package

ADUM142D0BRQZ is housed in a RoHS-compliant 16-lead narrow-body SOIC (R-16 / SOIC_N) package with 4.0 mm creepage and clearance, optimized for space-constrained PCB layouts requiring 3.0 kV_RMS isolation.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Input Channels A–D (primary side)	Dedicated CMOS-compatible inputs referenced to VDD1; accept 1.8–5 V logic levels.
5, 12	Enable Inputs VE1, VE2	Active-low enables for respective channel pairs; pull-up current ≤ −3 µA ensures robust disable behavior.
6, 7, 8, 9	Output Channels A–D (secondary side)	CMOS outputs referenced to VDD2; VOH ≥ VDD2 − 0.4 V @ 4 mA load ensures strong drive into downstream logic.
10, 11	VDD1, GND1	Primary-side power and ground - decoupling required within 1 cm for EMI suppression and jitter control.
13, 14, 15, 16	VDD2, GND2, DISABLE1, DISABLE2	Secondary-side power/ground plus dedicated disable controls; DISABLE1 has 9–15 µA pull-down for clean shutdown.

Key Features

Feature	Design Value
iCoupler® transformer isolation	Eliminates optocoupler LED degradation and temperature-dependent timing drift; enables >50-year lifetime at 125°C.
100 kV/µs CMTI	Prevents false triggering in high-dV/dt environments such as IGBT gate drivers and isolated DC-DC feedback paths.
1.8 V to 5 V dual-supply operation	Enables seamless voltage translation between mixed-voltage subsystems (e.g., 1.8 V FPGA core ↔ 3.3 V ADC interface).
AEC-Q100 Grade 1 qualification	Validated for automotive under-hood use (−40°C to +125°C), including HTOL, TC, and ESD testing per stress test plan.
Fail-safe high output	Guarantees known logic state during power loss or input float - critical for safety interlocks and watchdog reset circuits.
DIN EN IEC 60747-17 (VDE 0884-17) compliance	Meets latest reinforced insulation standard for partial discharge, surge, and lifetime endurance - required for medical and industrial safety certification.

Applications

SPI Isolation in Industrial PLCs	Isolated CAN Bus Interface
Use Scenario: Isolating SPI signals between a 3.3 V host MCU and multiple 5 V isolated analog input modules in programmable logic controllers. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator with two channels for SCLK/MOSI and two for MISO/SS, preserving full-duplex timing integrity. Use Value: Enables 150 Mbps clock/data transfer while blocking ground loops and common-mode noise up to 100 kV/µs - eliminating communication dropouts in factory-floor EMI.	Use Scenario: Providing galvanic isolation between a CAN controller and transceiver in automotive body control modules. IC Role / Device Role / Timing Role: Isolates TXD/RXD signals and provides separate VDD1/VDD2 domains to break ground paths between controller and physical layer. Use Value: Prevents bus faults from propagating to the MCU side; AEC-Q100 qualification and 125°C operation ensure reliability in engine bay environments.
Isolated Power Supply Feedback	Medical Sensor Data Acquisition
Use Scenario: Isolating voltage/current feedback signals from secondary-side synchronous rectifiers back to primary-side PWM controllers in isolated DC-DC converters. IC Role / Device Role / Timing Role: Transmits analog-derived digital error signals across isolation barrier with <3 ns channel matching to preserve loop stability. Use Value: Maintains tight regulation accuracy (<±0.5%) despite >1 kV common-mode transients - critical for telecom and server PSU compliance.	Use Scenario: Isolating EEG/ECG front-end ADC digital outputs from patient-connected analog circuitry in diagnostic equipment. IC Role / Device Role / Timing Role: Provides 3.0 kV_RMS reinforced insulation per IEC 60601-1, with fail-safe high outputs ensuring safe default state during power interruption. Use Value: Meets creepage/clearance and CTI (>400 V) requirements for Type BF applied parts while supporting high-resolution, low-jitter data streaming.

SPI Isolation in Industrial PLCs

Isolated CAN Bus Interface

Use Scenario: Isolating SPI signals between a 3.3 V host MCU and multiple 5 V isolated analog input modules in programmable logic controllers.

IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator with two channels for SCLK/MOSI and two for MISO/SS, preserving full-duplex timing integrity.

Use Value: Enables 150 Mbps clock/data transfer while blocking ground loops and common-mode noise up to 100 kV/µs - eliminating communication dropouts in factory-floor EMI.

Use Scenario: Providing galvanic isolation between a CAN controller and transceiver in automotive body control modules.

IC Role / Device Role / Timing Role: Isolates TXD/RXD signals and provides separate VDD1/VDD2 domains to break ground paths between controller and physical layer.

Use Value: Prevents bus faults from propagating to the MCU side; AEC-Q100 qualification and 125°C operation ensure reliability in engine bay environments.

Isolated Power Supply Feedback

Medical Sensor Data Acquisition

Use Scenario: Isolating voltage/current feedback signals from secondary-side synchronous rectifiers back to primary-side PWM controllers in isolated DC-DC converters.

IC Role / Device Role / Timing Role: Transmits analog-derived digital error signals across isolation barrier with <3 ns channel matching to preserve loop stability.

Use Value: Maintains tight regulation accuracy (<±0.5%) despite >1 kV common-mode transients - critical for telecom and server PSU compliance.

Use Scenario: Isolating EEG/ECG front-end ADC digital outputs from patient-connected analog circuitry in diagnostic equipment.

IC Role / Device Role / Timing Role: Provides 3.0 kV_RMS reinforced insulation per IEC 60601-1, with fail-safe high outputs ensuring safe default state during power interruption.

Use Value: Meets creepage/clearance and CTI (>400 V) requirements for Type BF applied parts while supporting high-resolution, low-jitter data streaming.

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
ADUM142E0BRQZ	Pin-compatible but with fail-safe low output state instead of high; identical timing, isolation, and supply specs.	Preferred where system safety requires default-low assertion (e.g., active-low reset lines or enable signals).	Select ADUM142E0BRQZ only when fail-safe low behavior is explicitly required; otherwise ADUM142D0BRQZ remains optimal for high-default logic.
SI8642ED-B-IS	Capacitive isolation; 5 kV_RMS rating; 150 Mbps; 15 ns max propagation delay; different pinout (SOIC-16 wide-body RW-16).	Offers higher isolation voltage but requires PCB layout revision due to wider package and non-pin-compatible enable/disable mapping.	Consider SI8642ED-B-IS only if 3.75 kV_RMS is mandated; ADUM142D0BRQZ provides superior CMTI (100 vs. 75 kV/µs) and same footprint for drop-in replacement in R-16 designs.

Compared with ADUM142E0BRQZ, ADUM142D0BRQZ delivers identical performance except for fail-safe polarity - making it ideal for high-default control paths. Against SI8642ED-B-IS, ADUM142D0BRQZ offers better noise immunity and mechanical compatibility in narrow-body SOIC layouts, avoiding redesign costs.

Availability

ADUM142D0BRQZ is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical diagnostics requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified isolation components.

Supply support for ADUM142D0BRQZ 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 since 1965.

The ADuM142D series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-noise industrial and automotive applications demanding robust galvanic isolation, precise timing, and long-term reliability without optocoupler limitations.

FAQ

What is the isolation voltage rating of the ADUM142D0BRQZ?

The ADUM142D0BRQZ is rated for 3.0 kV_RMS isolation per UL 1577 and IEC/EN/CSA 60950-1 standards, verified for 1-minute dielectric withstand. This applies to the R-16 narrow-body SOIC package and supports reinforced insulation in industrial and medical systems meeting IEC 60601-1 and IEC 61010-1.

Does the ADUM142D0BRQZ support level translation between different supply voltages?

Yes, the ADUM142D0BRQZ supports independent 1.8 V to 5 V supplies on each side (VDD1 and VDD2), enabling bidirectional level translation. For example, it can interface a 1.8 V FPGA I/O bank to a 3.3 V ADC SPI bus while maintaining signal integrity and timing accuracy across the isolation barrier.

What is the fail-safe behavior of the ADUM142D0BRQZ?

The ADUM142D0BRQZ features a fail-safe high output configuration: when VDD1 is unpowered or inputs are disabled, all four outputs default to logic high. This behavior is hard-coded in the silicon design and does not require external pull-ups, ensuring predictable system state during brownout or initialization.

Is the ADUM142D0BRQZ pin-compatible with earlier ADuM140x/ADuM141x devices?

No - ADUM142D0BRQZ is not pin-compatible with ADuM1400/ADuM1401/ADuM1402. However, ADUM142E1 variants (not D0) are pin-compatible with those legacy parts. The ADUM142D0BRQZ uses a distinct pinout optimized for dual-enable and dual-disable control, as documented in Figure 3 of the Rev. K datasheet.

What safety certifications does the ADUM142D0BRQZ hold?

The ADUM142D0BRQZ is certified to UL 1577 (3000 V_RMS), IEC/EN/CSA 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17). These approvals validate its suitability for industrial, medical, and measurement equipment requiring reinforced insulation.

ADUM142D0BRQZ 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:: 2/2

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

ADUM142D0BRQZ FAQ

1.How can I place an order for ADUM142D0BRQZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM142D0BRQZ 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 ADUM142D0BRQZ reliable?

The price and inventory of ADUM142D0BRQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM142D0BRQZ is usually 5 days.

3.What payment methods are accepted for ADUM142D0BRQZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM142D0BRQZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM142D0BRQZ?

ADUM142D0BRQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM142D0BRQZ 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 ADUM142D0BRQZ?

For technical support, including ADUM142D0BRQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM142D0BRQZ requirements.

6.How does Aetrix verify that ADUM142D0BRQZ is sourced from the original manufacturer or authorized distributors?

All ADUM142D0BRQZ 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 ADUM142D0BRQZ meets industry standards.

7.What is the process for return or replacement of ADUM142D0BRQZ?

All ADUM142D0BRQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM142D0BRQZ, 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 ADUM142D0BRQZ part is unused and in its original packaging.

Return procedure for ADUM142D0BRQZ:

1.Submit a request within 90 days.

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

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