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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM142E1WBRQZ

Name: ADUM142E1WBRQZ
Brand: Analog Devices Inc.
SKU: ADUM142E1WBRQZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM142E1WBRQZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM142E1WBRQZ.pdf

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

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Product details

Overview

ADUM142E1WBRQZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation, delivering 3.0 kV_RMS withstand voltage, 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and AEC-Q100 qualification for automotive systems. It enables bidirectional signal isolation in SPI interfaces, motor control feedback loops, and isolated power supply monitoring.

For engineers reviewing the ADUM142E1WBRQZ datasheet, ADUM142E1WBRQZ pinout, ADUM142E1WBRQZ application, or ADUM142E1WBRQZ equivalent, this page provides verified specifications, SOIC-16W package details, fail-safe high/low output options, 1.8–5 V dual-supply level translation, and regulatory compliance per UL 1577, IEC 60950-1, IEC 60601-1, and DIN EN IEC 60747-17 (VDE 0884-17).

Technical Context

The ADUM142E1WBRQZ implements four independent unidirectional channels with CMOS input/output logic, monolithic air-core transformers, and integrated DC-correctness circuitry ensuring stable output states during input inactivity. Its architecture eliminates optocoupler aging and timing drift while supporting simultaneous operation across 1.8 V to 5 V supplies on either side of the isolation barrier.

It features two configurable fail-safe modes (high or low), disable inputs per side, and robust noise immunity with 100 kV/µs common-mode transient immunity. The device maintains tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), making it suitable for time-critical industrial and automotive serial communication links.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	3.0 kV_RMS for 1 minute - meets reinforced insulation requirements for functional safety in industrial and automotive end equipment.
Data Rate	150 Mbps guaranteed - supports high-speed SPI, RS-485, and digital encoder interfaces without oversampling or protocol overhead.
Propagation Delay	13 ns max at 5 V - enables sub-100 ns round-trip latency in closed-loop control systems such as servo drives.
Supply Voltage Range	1.8 V to 5 V on both sides - allows direct interfacing between legacy 5 V microcontrollers and modern 1.8 V FPGAs or ADCs.
Common-Mode Transient Immunity	100 kV/µs - ensures reliable operation in noisy motor drive or power converter environments with fast-switching transients.
Operating Temperature	−40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications including battery management and traction inverters.
Regulatory Approvals	UL 1577, IEC/EN/CSA 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, CQC GB 4943.1, DIN EN IEC 60747-17 - validated for medical, industrial, and consumer safety-critical designs.

Pinout & Package

ADUM142E1WBRQZ uses a 16-lead RoHS-compliant wide-body SOIC (SOIC_W) package with 7.8 mm creepage and clearance, optimized for 3.75 kV_RMS isolation systems. Pin assignments follow standard ADuM142E1 configuration with side 1 (pins 1–8) and side 2 (pins 9–16) fully galvanically separated.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side power supply	Accepts 1.8–5 V; powers input-side logic and isolation transmitter; UVLO threshold at 1.6 V.
GND1	Primary-side ground reference	Return path for VDD1; must be isolated from GND2 by ≥7.8 mm PCB spacing.
INA, INB, INC, IND	Input signal terminals	CMOS-compatible inputs; VIH = 0.7×VDD1, VIL = 0.3×VDD1; support 150 Mbps switching.
DISABLE1	Primary-side disable control	Pull-down enabled; forces outputs to fail-safe state when asserted high.
VDD2	Secondary-side power supply	Independent 1.8–5 V supply; powers output-side logic and receiver; UVLO at 1.6 V.
GND2	Secondary-side ground reference	Return path for VDD2; electrically isolated from GND1; defines output logic reference.
OUTA, OUTB, OUTC, OUTD	Output signal terminals	CMOS outputs; VOH ≥ VDD2 − 0.4 V @ 4 mA, VOL ≤ 0.4 V @ 4 mA; fail-safe state configurable at power-up.
VE2	Secondary-side enable input	Pull-up enabled; disables outputs when pulled low; used for synchronized shutdown across isolation barrier.

Key Features

Feature	Design Value
Fail-safe output configuration	Selectable high or low default state during power loss or input disable - prevents undefined logic states in safety-critical control paths.
Dual-supply level translation	1.8 V ↔ 5 V interoperability across isolation barrier - eliminates external level shifters in mixed-voltage systems.
iCoupler® transformer isolation	No LED degradation or timing drift over temperature/lifetime - delivers stable propagation delay and skew vs. optocouplers.
AEC-Q100 Grade 1 qualification	Validated for automotive use up to +125°C ambient - supports deployment in engine control units and battery management systems.
Low dynamic power consumption	7.7 mA typical supply current at 100 Mbps (side 1) and 11.2 mA (side 2) - reduces thermal load in dense PCB layouts.

Applications

Motor Control Feedback Isolation	SPI Interface Isolation
Use Scenario: Isolating position encoder signals and gate driver status feedback in 3-phase inverter systems. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM timing-critical feedback with ≤13 ns delay and ≤3 ns channel skew. Use Value: Enables precise rotor position tracking and fault detection without compromising loop bandwidth or introducing jitter-induced torque ripple.	Use Scenario: Galvanic separation of SPI clock, MOSI, MISO, and CS lines between MCU and isolated ADC or DAC. IC Role / Device Role / Timing Role: Four independent isolation channels preserving full-duplex SPI timing integrity at up to 150 Mbps. Use Value: Prevents ground loop noise from corrupting high-resolution sensor data while maintaining deterministic read/write latency.
Industrial Fieldbus Node Isolation	Automotive Battery Management System (BMS)
Use Scenario: Isolating CAN or RS-485 transceiver control lines and status signals in programmable logic controllers. IC Role / Device Role / Timing Role: Signal-level isolator for enable, fault, and direction control pins with 100 kV/µs CMTI immunity. Use Value: Maintains communication reliability in electrically noisy factory environments with variable-frequency drives and welding equipment.	Use Scenario: Isolating cell voltage monitoring and balancing control signals between high-voltage battery stack and low-voltage MCU domain. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolator providing reinforced insulation (3.0 kV_RMS) and operation up to +125°C ambient. Use Value: Meets ISO 26262 ASIL-B requirements for voltage sensing accuracy and fault response time in EV battery packs.

Motor Control Feedback Isolation

SPI Interface Isolation

Use Scenario: Isolating position encoder signals and gate driver status feedback in 3-phase inverter systems.

IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM timing-critical feedback with ≤13 ns delay and ≤3 ns channel skew.

Use Value: Enables precise rotor position tracking and fault detection without compromising loop bandwidth or introducing jitter-induced torque ripple.

Use Scenario: Galvanic separation of SPI clock, MOSI, MISO, and CS lines between MCU and isolated ADC or DAC.

IC Role / Device Role / Timing Role: Four independent isolation channels preserving full-duplex SPI timing integrity at up to 150 Mbps.

Use Value: Prevents ground loop noise from corrupting high-resolution sensor data while maintaining deterministic read/write latency.

Industrial Fieldbus Node Isolation

Automotive Battery Management System (BMS)

Use Scenario: Isolating CAN or RS-485 transceiver control lines and status signals in programmable logic controllers.

IC Role / Device Role / Timing Role: Signal-level isolator for enable, fault, and direction control pins with 100 kV/µs CMTI immunity.

Use Value: Maintains communication reliability in electrically noisy factory environments with variable-frequency drives and welding equipment.

Use Scenario: Isolating cell voltage monitoring and balancing control signals between high-voltage battery stack and low-voltage MCU domain.

IC Role / Device Role / Timing Role: AEC-Q100 qualified isolator providing reinforced insulation (3.0 kV_RMS) and operation up to +125°C ambient.

Use Value: Meets ISO 26262 ASIL-B requirements for voltage sensing accuracy and fault response time in EV battery packs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM142E0WBRQZ	Different fail-safe default state (low vs. high); identical pinout, timing, and isolation specs.	Used where system requires active-low default output during power loss or disable.	Select based on required fail-safe polarity; no layout or firmware changes needed.
SI8642ED-B-IS	Capacitive isolation; 5 kV_RMS rating; 150 Mbps; 15 ns max propagation delay; different pinout and enable logic.	Higher isolation voltage but lacks AEC-Q100 qualification and 1.8 V compatibility.	Prefer for non-automotive industrial applications requiring higher dielectric strength and lower cost.

Compared with ADUM142E1WBRQZ, ADUM142E0WBRQZ offers identical performance with inverted fail-safe behavior, while SI8642ED-B-IS trades automotive qualification and ultra-low-voltage operation for higher isolation rating and capacitive architecture - selection depends on safety certification needs and supply voltage constraints.

Availability

ADUM142E1WBRQZ is available at Aetrix Electronics and suitable for automotive battery management, industrial motor control, SPI data converter isolation, and medical equipment requiring stable component supply with long-term lifecycle assurance.

Supply support for ADUM142E1WBRQZ 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 ADuM142E series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, high-speed signal isolation in safety-critical systems where optocoupler limitations-aging, temperature drift, and speed bottlenecks-must be eliminated.

FAQ

What is the maximum guaranteed data rate for ADUM142E1WBRQZ?

The ADUM142E1WBRQZ guarantees a data rate of 150 Mbps across all operating conditions (−40°C to +125°C, 1.8 V to 5 V supplies). This value is tested with CL = 15 pF and CMOS signal levels, and applies within pulse width distortion limits. Higher rates may be achievable but are not production-guaranteed.

Does ADUM142E1WBRQZ support level translation between different supply voltages?

Yes, ADUM142E1WBRQZ 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 direct interfacing between, for example, a 1.8 V FPGA I/O bank and a 5 V microcontroller SPI peripheral without external level shifters.

What fail-safe output behavior does ADUM142E1WBRQZ provide?

ADUM142E1WBRQZ is configured for fail-safe high output - when VDD1 or VDD2 is absent, or when DISABLE1 is asserted, all outputs transition to logic high. This behavior is fixed for the E1 variant; the E0 variant provides fail-safe low. No external components are needed to establish this state.

Is ADUM142E1WBRQZ qualified for automotive applications?

Yes, ADUM142E1WBRQZ is AEC-Q100 qualified (Grade 1, −40°C to +125°C ambient), with full validation for automotive use cases including battery management systems, motor control modules, and body electronics. It meets IEC/CSA 60601-1 and IEC/CSA 61010-1 for medical and industrial safety standards.

What package type and isolation rating does ADUM142E1WBRQZ use?

ADUM142E1WBRQZ uses a 16-lead wide-body SOIC (SOIC_W) package with 7.8 mm creepage and clearance, rated for 3.75 kV_RMS isolation per IEC 60747-17 (VDE 0884-17). Its actual withstand voltage is specified as 3.0 kV_RMS for 1 minute per UL 1577 - consistent with reinforced insulation requirements in functional safety designs.

ADUM142E1WBRQZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

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:: Automotive

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QSOP

ADUM142E1WBRQZ FAQ

1.How can I place an order for ADUM142E1WBRQZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM142E1WBRQZ 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 ADUM142E1WBRQZ reliable?

The price and inventory of ADUM142E1WBRQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM142E1WBRQZ is usually 5 days.

3.What payment methods are accepted for ADUM142E1WBRQZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM142E1WBRQZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM142E1WBRQZ?

ADUM142E1WBRQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM142E1WBRQZ 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 ADUM142E1WBRQZ?

For technical support, including ADUM142E1WBRQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM142E1WBRQZ requirements.

6.How does Aetrix verify that ADUM142E1WBRQZ is sourced from the original manufacturer or authorized distributors?

All ADUM142E1WBRQZ 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 ADUM142E1WBRQZ meets industry standards.

7.What is the process for return or replacement of ADUM142E1WBRQZ?

All ADUM142E1WBRQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM142E1WBRQZ, 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 ADUM142E1WBRQZ part is unused and in its original packaging.

Return procedure for ADUM142E1WBRQZ:

1.Submit a request within 90 days.

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

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