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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM142D1BRZ

Name: ADUM142D1BRZ
Brand: Analog Devices Inc.
SKU: ADUM142D1BRZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM142D1BRZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM142D1BRZ.pdf

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

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Product details

Overview

ADUM142D1BRZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.0 kV_RMS isolation with 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and 1.8 V to 5 V level translation. It serves as a high-speed, noise-immune signal barrier in isolated SPI interfaces and industrial field bus systems.

For engineers reviewing the ADUM142D1BRZ datasheet, ADUM142D1BRZ pinout, ADUM142D1BRZ application, or ADUM142D1BRZ equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), fail-safe output configuration (high), AEC-Q100 qualification, and SOIC-16 narrow-body package compatibility with PCB layout constraints for reinforced isolation.

Technical Context

The ADUM142D1BRZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports asymmetric supply operation (e.g., 1.8 V on side 1, 5 V on side 2) while maintaining tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms).

It features dual enable inputs (VE1, VE2) and disable control (DISABLE1), enabling precise power sequencing and tristate output management. Safety compliance includes UL 1577 (3000 V_RMS/1 min), IEC/EN/CSA 60950-1, IEC 60601-1, and DIN EN IEC 60747-17 (VIORM = 565 V_PEAK), validated for medical and industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	150 Mbps maximum - guarantees reliable high-speed serial communication across isolation barrier
Propagation Delay	13 ns max at 5 V - enables timing-critical applications such as real-time motor control feedback loops
Common-Mode Transient Immunity	100 kV/µs - sustains signal integrity in noisy industrial environments with fast-switching power electronics
Isolation Voltage	3000 V_RMS for 1 minute - meets reinforced insulation requirements per IEC 60950-1 and IEC 60601-1
Supply Voltage Range	1.8 V to 5 V per side - supports mixed-voltage system interfacing and low-power MCU integration
Fail-Safe Output State	High - ensures defined logic-high default during power loss or input disable, critical for safety interlocks
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive and industrial ambient conditions

Pinout & Package

ADUM142D1BRZ is housed in a 16-lead RoHS-compliant SOIC_N (R-16) narrow-body 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
VDD1	Primary-side power supply	Supplies input-side logic and isolation transmitter; accepts 1.8–5 V
GND1	Primary-side ground reference	Reference for all input signals and VDD1; must be separated from GND2 by isolation barrier
VA, VB, VC, VD	Input signal terminals	Unidirectional logic inputs accepting CMOS levels referenced to VDD1
VE1, VE2	Output enable controls	Active-low enables for respective output groups; pulled up internally when unused
DISABLE1	Input disable control	Active-high disables all input receivers; pulls inputs to known state when asserted
VDD2	Secondary-side power supply	Supplies output-side logic and isolation receiver; independent voltage domain from VDD1
GND2	Secondary-side ground reference	Reference for all output signals and VDD2; galvanically isolated from GND1
OA, OB, OC, OD	Output signal terminals	Unidirectional CMOS outputs referenced to VDD2; fail-safe high when disabled

Key Features

Feature	Design Value
iCoupler® transformer isolation	Eliminates LED aging and CTR degradation of optocouplers; enables >50-year lifetime at rated stress
1.8 V to 5 V level translation	Allows direct interface between low-voltage microcontrollers (e.g., 1.8 V ARM cores) and 3.3/5 V peripherals
Fail-safe high output	Guarantees logic-high output during VDD1/VDD2 power loss or DISABLE1 assertion, preventing undefined system states
AEC-Q100 Grade 1 qualification	Validated for automotive applications including engine control units and battery management systems
Low dynamic power consumption	7.7 mA typical supply current at 100 Mbps (side 1) and 8.7 mA (side 2), reducing thermal load in dense layouts

Applications

Motor Drive Control	SPI Isolation for Data Converters
Use Scenario: Isolating gate driver control signals and current-sense feedback in 3-phase inverter stages. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM enable, fault status, and analog-to-digital converter readback across high dv/dt barriers. Use Value: Enables 13 ns timing precision for synchronized switching while rejecting >100 kV/µs transients from IGBT switching noise.	Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between MCU and isolated ADC/DAC in programmable logic controllers. IC Role / Device Role / Timing Role: Provides four independent, matched-delay channels preserving SPI timing integrity at up to 150 Mbps. Use Value: Maintains sub-3 ns channel matching to prevent setup/hold violations in high-resolution (≥24-bit) data acquisition systems.
Industrial Field Bus Interface	Medical Sensor Isolation
Use Scenario: Galvanic isolation of RS-485 transceiver control and status lines in distributed I/O modules. IC Role / Device Role / Timing Role: Isolates enable, direction, and fault signals between microcontroller and bus PHY, supporting hot-plug robustness. Use Value: Meets IEC 60601-1 creepage/clearance requirements (4.0 mm) and withstands 3000 V_RMS for patient-connected equipment.	Use Scenario: Isolating analog front-end sensor signals and digital control paths in ECG or EEG monitoring devices. IC Role / Device Role / Timing Role: Provides reinforced isolation for patient-side analog sensors while enabling digital calibration and configuration from host processor. Use Value: Achieves VIORM = 565 V_PEAK per DIN EN IEC 60747-17, satisfying essential safety requirements for Class BF applied parts.

Motor Drive Control

SPI Isolation for Data Converters

Use Scenario: Isolating gate driver control signals and current-sense feedback in 3-phase inverter stages.

IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM enable, fault status, and analog-to-digital converter readback across high dv/dt barriers.

Use Value: Enables 13 ns timing precision for synchronized switching while rejecting >100 kV/µs transients from IGBT switching noise.

Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between MCU and isolated ADC/DAC in programmable logic controllers.

IC Role / Device Role / Timing Role: Provides four independent, matched-delay channels preserving SPI timing integrity at up to 150 Mbps.

Use Value: Maintains sub-3 ns channel matching to prevent setup/hold violations in high-resolution (≥24-bit) data acquisition systems.

Industrial Field Bus Interface

Medical Sensor Isolation

Use Scenario: Galvanic isolation of RS-485 transceiver control and status lines in distributed I/O modules.

IC Role / Device Role / Timing Role: Isolates enable, direction, and fault signals between microcontroller and bus PHY, supporting hot-plug robustness.

Use Value: Meets IEC 60601-1 creepage/clearance requirements (4.0 mm) and withstands 3000 V_RMS for patient-connected equipment.

Use Scenario: Isolating analog front-end sensor signals and digital control paths in ECG or EEG monitoring devices.

IC Role / Device Role / Timing Role: Provides reinforced isolation for patient-side analog sensors while enabling digital calibration and configuration from host processor.

Use Value: Achieves VIORM = 565 V_PEAK per DIN EN IEC 60747-17, satisfying essential safety requirements for Class BF applied parts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM142E1BRZ	Pin-compatible; fail-safe output state is low instead of high	Required where default logic-low output is needed for safety shutdown or reset assertion	Select ADUM142E1BRZ only when system logic requires active-low fail-safe behavior
SI8641ED-B-IS	Capacitive isolation; 5000 V_RMS rating; 150 Mbps; SOIC-16 wide-body (RW-16)	Higher isolation voltage but requires 7.8 mm creepage - needs larger PCB area	Choose SI8641ED-B-IS when 3.75 kV_RMS isolation and wider creepage are mandatory

Compared with ADUM142E1BRZ and SI8641ED-B-IS, ADUM142D1BRZ uniquely combines 3.0 kV_RMS isolation in a compact SOIC_N footprint with fail-safe high outputs-ideal for space-limited industrial controllers where default high-state signaling aligns with existing safety architecture.

Availability

ADUM142D1BRZ is available at Aetrix Electronics and suitable for motor drive control, SPI isolation for data converters, and industrial field bus interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified reliability.

Supply support for ADUM142D1BRZ 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 ADuM142D series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-speed, low-jitter, and high-CMTI signal isolation in safety-critical industrial and automotive systems.

FAQ

What is the maximum guaranteed data rate for ADUM142D1BRZ?

The ADUM142D1BRZ has a maximum guaranteed data rate of 150 Mbps across its full operating temperature range (−40°C to +125°C) and supply voltage range (1.8 V to 5 V). This value is tested and specified in the datasheet under switching specifications with CL = 15 pF and CMOS signal levels, ensuring reliable high-speed serial communication in demanding applications like isolated SPI and digital field buses.

Does ADUM142D1BRZ support level translation between different supply voltages?

Yes, ADUM142D1BRZ supports 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 low-voltage microcontrollers (e.g., 1.8 V or 2.5 V cores) and higher-voltage peripherals (e.g., 3.3 V or 5 V ADCs or transceivers) without external level-shifting circuitry, simplifying design and reducing BOM count.

What is the fail-safe output behavior of ADUM142D1BRZ?

The ADUM142D1BRZ is configured with a fail-safe high output state. When VDD1 or VDD2 is unpowered, or when DISABLE1 is asserted, all outputs (OA–OD) transition to and remain at a logic-high level. This deterministic behavior prevents floating or undefined states in safety-critical systems such as motor control interlocks or medical device sensor interfaces.

Is ADUM142D1BRZ qualified for automotive applications?

Yes, ADUM142D1BRZ is AEC-Q100 qualified for automotive applications (Grade 1: −40°C to +125°C ambient). It meets stringent reliability, thermal, and ESD requirements for use in engine control units, battery management systems, and onboard chargers, and carries full safety certifications including UL 1577 and IEC 60601-1 for functional safety integration.

What package type does ADUM142D1BRZ use, and what are its isolation-related dimensions?

ADUM142D1BRZ uses a 16-lead SOIC_N (R-16) narrow-body package. Its isolation-related mechanical dimensions include 4.0 mm minimum creepage and clearance between input and output pins, 4.5 mm PCB clearance, and a rated dielectric insulation voltage of 3000 V_RMS for 1 minute-fully compliant with IEC 60950-1 and IEC 60601-1 for reinforced insulation in industrial and medical equipment.

ADUM142D1BRZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: iCoupler®

Package/Case:: 16-SOIC (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-SOIC

ADUM142D1BRZ FAQ

1.How can I place an order for ADUM142D1BRZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM142D1BRZ 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 ADUM142D1BRZ reliable?

The price and inventory of ADUM142D1BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM142D1BRZ is usually 5 days.

3.What payment methods are accepted for ADUM142D1BRZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM142D1BRZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM142D1BRZ?

ADUM142D1BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM142D1BRZ 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 ADUM142D1BRZ?

For technical support, including ADUM142D1BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM142D1BRZ requirements.

6.How does Aetrix verify that ADUM142D1BRZ is sourced from the original manufacturer or authorized distributors?

All ADUM142D1BRZ 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 ADUM142D1BRZ meets industry standards.

7.What is the process for return or replacement of ADUM142D1BRZ?

All ADUM142D1BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM142D1BRZ, 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 ADUM142D1BRZ part is unused and in its original packaging.

Return procedure for ADUM142D1BRZ:

1.Submit a request within 90 days.

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

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