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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM342E1WBRQZ

Name: ADUM342E1WBRQZ
Brand: Analog Devices Inc.
SKU: ADUM342E1WBRQZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM342E1WBRQZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM342E1WBRQZ.pdf

Description:: IC, QUAD CHANNEL DIGITAL ISO 2:2

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Product details

Overview

ADUM342E1WBRQZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation, delivering 3.0 kV_rms withstand voltage in a 16-lead QSOP package, 150 Mbps data rate at 5 V, 6.2 ns typical propagation delay, and ±8 kV IEC 61000-4-2 ESD protection across the barrier - deployed in industrial SPI isolation and CAN FD bus interfaces.

For engineers reviewing the ADUM342E1WBRQZ datasheet, ADUM342E1WBRQZ pinout, ADUM342E1WBRQZ application, or ADUM342E1WBRQZ equivalent, key selection criteria include fail-safe low (E1) output behavior, 2.25–5.5 V dual-supply level translation, high CMTI (180 kV/µs), AEC-Q100 qualification, and SOIC/QSOP package compatibility with legacy ADuM14x/ADuM24x families.

Technical Context

The ADUM342E1WBRQZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, supporting codirectional and opposing-direction channel matching ≤3.0 ns. Its fail-safe E1 configuration forces outputs low when input-side power is absent.

It operates across 2.25–5.5 V on both sides, enabling bidirectional level translation; UVLO thresholds (2.0–2.2 V) and 60 µs release time ensure robust power sequencing. Insulation meets DIN EN IEC 60747-17 (VIORM = 566 V_peak) and UL 1577 (VISO = 3000 V_rms/1 min) for QSOP (RQ-16).

Key Specifications

Parameter	Value and Actual Design Meaning
Data rate	150 Mbps maximum - supports high-speed SPI, CAN FD, and PWM signal isolation without timing bottlenecks
Propagation delay	6.2 ns typical (10 ns max) at 5 V - enables tight timing control in feedback loops and real-time control systems
Common-mode transient immunity	180 kV/µs typical - maintains signal integrity in noisy motor drives and industrial inverters
Isolation rating	3000 V_rms for 1 minute (QSOP) - certified for reinforced insulation per IEC/EN/CSA 62368-1 and 61010-1
Supply voltage range	2.25 V to 5.5 V per side - allows interfacing between 3.3 V microcontrollers and 5 V peripherals or 2.5 V FPGAs
Fail-safe output	E1 option - outputs default to logic low during input-side power loss, critical for safety-critical gate drive enable paths
ESD protection	±8 kV contact (IEC 61000-4-2) across barrier - eliminates need for external TVS diodes in isolated data lines

Pinout & Package

ADUM342E1WBRQZ is housed in a RoHS-compliant 16-lead QSOP (RQ-16) package with 7.4 mm body width and 1.27 mm pitch. Pinout follows standard ADuM34xE channel assignment with dedicated enable inputs and independent VDD1/VDD2 supplies.

Pin/Terminal	Circuit Role	Design Meaning
VDD1	Primary-side supply	Power for input-side logic and channel 1–2 transmitters; accepts 2.25–5.5 V
GND1	Primary-side ground	Reference for input signals and VDD1; must be separated from GND2 by isolation barrier
INA, INB	Input channels A/B	CMOS-compatible digital inputs referenced to VDD1/GND1; support 2.25–5.5 V logic levels
ENA, ENB	Enable inputs A/B	Active-low enables for channels A/B; pulled up internally (−6 µA at 0 V)
VDD2	Secondary-side supply	Power for output-side logic and channel 3–4 receivers; independent 2.25–5.5 V domain
GND2	Secondary-side ground	Reference for output signals and VDD2; galvanically isolated from GND1
OUTC, OUTD	Output channels C/D	E1-configured outputs - default low when VDD1 is unpowered; drive 4 mA at VOL ≤ 0.4 V
ENC, END	Enable inputs C/D	Active-low enables for channels C/D; match ENA/ENB electrical behavior and bias

Key Features

Feature	Design Value
iCoupler® transformer isolation	Monolithic air-core transformers eliminate optocoupler aging and enable >100-year lifetime per IEC 60747-17
High-speed timing performance	Channel matching ≤3.0 ns and pulse width distortion ≤3 ns ensure deterministic timing in multichannel feedback paths
Dual-supply level translation	2.25–5.5 V operation on both sides enables direct interface between 3.3 V MCU and 5 V ADC or 2.5 V FPGA I/O
AEC-Q100 qualification	Rated for automotive applications (Grade 1: −40°C to +125°C ambient), including battery management and EV traction inverters
Low dynamic power	<1.65 mA/channel at 1 Mbps - reduces thermal load in densely packed industrial PLC modules

Applications

SPI Data Converter Isolation	CAN FD Industrial Field Bus
Use Scenario: Isolating high-resolution SAR ADCs (e.g., AD7606) from host microcontrollers in motor drive current sensing. IC Role / Device Role / Timing Role: Quad-channel isolator separates SPI clock, MOSI, MISO, and CS lines while maintaining <10 ns skew between edges. Use Value: Prevents ground loop noise from corrupting 16-bit conversion results; 150 Mbps headroom supports oversampling modes.	Use Scenario: Galvanic isolation of CAN FD nodes in factory automation controllers communicating at 5 Mbps. IC Role / Device Role / Timing Role: Provides separate isolated paths for CAN_H/CAN_L differential pair drivers and microcontroller TX/RX lines. Use Value: Enables safe communication across 3000 V_rms isolation barrier while meeting CISPR 32 Class B emissions limits at full data rate.
PWM Controller Signal Isolation	General-Purpose Multichannel Isolation
Use Scenario: Isolating gate driver enable/disable and fault feedback signals in SiC half-bridge inverters. IC Role / Device Role / Timing Role: E1-fail-safe outputs ensure gate drivers disable safely during primary-side power interruption. Use Value: Eliminates risk of shoot-through due to floating control lines; 180 kV/µs CMTI rejects switching noise from 1000 V bus transients.	Use Scenario: Replacing multiple single-channel optocouplers in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Consolidates four independent isolation channels into one QSOP footprint, reducing PCB area by >60% vs. discrete solutions. Use Value: Low 4.0 pF input capacitance minimizes loading on microcontroller GPIOs; RoHS-compliant package supports automated assembly.

SPI Data Converter Isolation

CAN FD Industrial Field Bus

Use Scenario: Isolating high-resolution SAR ADCs (e.g., AD7606) from host microcontrollers in motor drive current sensing.

IC Role / Device Role / Timing Role: Quad-channel isolator separates SPI clock, MOSI, MISO, and CS lines while maintaining <10 ns skew between edges.

Use Value: Prevents ground loop noise from corrupting 16-bit conversion results; 150 Mbps headroom supports oversampling modes.

Use Scenario: Galvanic isolation of CAN FD nodes in factory automation controllers communicating at 5 Mbps.

IC Role / Device Role / Timing Role: Provides separate isolated paths for CAN_H/CAN_L differential pair drivers and microcontroller TX/RX lines.

Use Value: Enables safe communication across 3000 V_rms isolation barrier while meeting CISPR 32 Class B emissions limits at full data rate.

PWM Controller Signal Isolation

General-Purpose Multichannel Isolation

Use Scenario: Isolating gate driver enable/disable and fault feedback signals in SiC half-bridge inverters.

IC Role / Device Role / Timing Role: E1-fail-safe outputs ensure gate drivers disable safely during primary-side power interruption.

Use Value: Eliminates risk of shoot-through due to floating control lines; 180 kV/µs CMTI rejects switching noise from 1000 V bus transients.

Use Scenario: Replacing multiple single-channel optocouplers in programmable logic controller (PLC) I/O modules.

IC Role / Device Role / Timing Role: Consolidates four independent isolation channels into one QSOP footprint, reducing PCB area by >60% vs. discrete solutions.

Use Value: Low 4.0 pF input capacitance minimizes loading on microcontroller GPIOs; RoHS-compliant package supports automated assembly.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM342E0WBRQZ	E0 variant: outputs default high during input-side power loss	Suitable where active-high enable or status reporting is required during brownout	Select ADUM342E0WBRQZ only if system logic requires fail-safe high assertion
SI8642ED-B-IS	Capacitive isolation; 5000 V_rms rating; 150 Mbps; no AEC-Q100 rating	Lacks automotive qualification; higher CMTI (200 kV/µs) but lower ESD (±4 kV) across barrier	Prefer ADUM342E1WBRQZ for automotive or medical systems requiring IEC 61010-1 and AEC-Q100 compliance

Compared with ADUM342E0WBRQZ, the ADUM342E1WBRQZ provides fail-safe low behavior essential for safety-critical shutdown paths; versus SI8642ED-B-IS, it delivers certified AEC-Q100 operation and higher barrier ESD protection, at the cost of slightly lower VIORM (566 V_peak vs. 800 V_peak).

Availability

ADUM342E1WBRQZ is available at Aetrix Electronics and suitable for industrial motor drives, automotive battery management systems, and medical diagnostic equipment requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for ADUM342E1WBRQZ 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, headquartered in Wilmington, MA.

The ADuM34xE family was designed specifically for high-reliability industrial and automotive isolation applications demanding low propagation delay, high CMTI, and regulatory certification - extending iCoupler® technology into cost-sensitive, high-volume markets.

FAQ

What is the isolation voltage rating for ADUM342E1WBRQZ?

ADUM342E1WBRQZ is rated for 3000 V_rms for 1 minute per UL 1577 and meets DIN EN IEC 60747-17 with VIORM = 566 V_peak, validated for QSOP (RQ-16) packaging. This rating applies specifically to the ADUM342E1WBRQZ variant and is confirmed in Table 7 of the Rev. C datasheet under Insulation Specifications.

Does ADUM342E1WBRQZ support level translation between different supply voltages?

Yes, ADUM342E1WBRQZ supports independent 2.25 V to 5.5 V supplies on VDD1 and VDD2, enabling seamless level translation - for example, 3.3 V microcontroller signals can drive isolated outputs referenced to a 5 V ADC domain. This functionality is specified across all operating voltages in Tables 1–5 of the datasheet.

What does the "E1" suffix indicate in ADUM342E1WBRQZ?

The "E1" suffix denotes the fail-safe output configuration: when VDD1 is unpowered or below UVLO threshold, all outputs (OUTC/OUTD) default to logic low. This behavior is electrically verified and documented in the Truth Table (page 24) and Functional Block Diagram (Figure 3) of the ADUM342E datasheet.

Is ADUM342E1WBRQZ qualified for automotive applications?

Yes, ADUM342E1WBRQZ is AEC-Q100 qualified (Grade 1: −40°C to +125°C ambient), explicitly stated in the Applications section and Automotive Products page (page 28) of the datasheet. This qualification covers the full RQ-16 package variant and includes stress testing per AEC-Q100-001 through -011.

What is the maximum data rate guaranteed for ADUM342E1WBRQZ?

ADUM342E1WBRQZ guarantees 150 Mbps maximum data rate at 5 V operation, as specified in Table 1 (Timing Specifications) and confirmed in the General Description. This rate is maintained within pulse width distortion limits and applies to all four channels simultaneously under recommended operating conditions.

ADUM342E1WBRQZ 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:: CAN, RS485, SPI

Isolated Power:: Yes

Number of Channels:: 4

Inputs - Side 1/Side 2:: 2/2

Channel Type:: Unidirectional

Voltage - Isolation:: 10000Vrms

Common Mode Transient Immunity (Min):: 100kV/µs

Data Rate:: 150Mbps

Propagation Delay tpLH / tpHL (Max):: 10ns, 10ns

Pulse Width Distortion (Max):: 3ns

Rise / Fall Time (Typ):: 2.5ns, 2.5ns

Voltage - Supply:: 2.25V ~ 5.5V

Grade:: Automotive

Qualification:: AEC-Q100

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QSOP

ADUM342E1WBRQZ FAQ

1.How can I place an order for ADUM342E1WBRQZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM342E1WBRQZ 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 ADUM342E1WBRQZ reliable?

The price and inventory of ADUM342E1WBRQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM342E1WBRQZ is usually 5 days.

3.What payment methods are accepted for ADUM342E1WBRQZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM342E1WBRQZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM342E1WBRQZ?

ADUM342E1WBRQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM342E1WBRQZ 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 ADUM342E1WBRQZ?

For technical support, including ADUM342E1WBRQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM342E1WBRQZ requirements.

6.How does Aetrix verify that ADUM342E1WBRQZ is sourced from the original manufacturer or authorized distributors?

All ADUM342E1WBRQZ 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 ADUM342E1WBRQZ meets industry standards.

7.What is the process for return or replacement of ADUM342E1WBRQZ?

All ADUM342E1WBRQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM342E1WBRQZ, 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 ADUM342E1WBRQZ part is unused and in its original packaging.

Return procedure for ADUM342E1WBRQZ:

1.Submit a request within 90 days.

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

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