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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM141E1BRZ

Name: ADUM141E1BRZ
Brand: Analog Devices Inc.
SKU: ADUM141E1BRZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM141E1BRZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM141E1BRZ.pdf

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

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Product details

Overview

ADUM141E1BRZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller peripherals and high-noise industrial buses. It delivers 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, 3.0 kV_RMS withstand voltage, and operates across 1.8 V to 5 V supply rails with fail-safe high output configuration. It is used in SPI isolation for motor control gate drivers.

For engineers reviewing the ADUM141E1BRZ datasheet, ADUM141E1BRZ pinout, ADUM141E1BRZ application, or ADUM141E1BRZ equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), AEC-Q100 qualification, SOIC-16 narrow-body package compatibility, and backward pin-compatibility with ADuM1400-series isolators.

Technical Context

The ADUM141E1BRZ implements four independent unidirectional isolation channels using monolithic air-core transformers, enabling dc-correct signal transmission without input transitions. Its architecture supports asymmetric supply operation (e.g., 1.8 V on side 1, 5 V on side 2) for level translation across the isolation barrier.

It features dual fail-safe modes-outputs default to logic high when input power is absent-and includes integrated undervoltage lockout (UVLO) with 1.6 V threshold and 0.1 V hysteresis on both sides to prevent metastable operation during power ramp-up or brownout conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	150 Mbps maximum guaranteed - supports high-speed SPI, RS-485 transceiver control, and real-time feedback loops
Propagation Delay	13 ns max at 5 V - enables tight timing budgets in closed-loop motor drives and digital power converters
Isolation Withstand Voltage	3000 V_RMS for 1 minute - meets reinforced insulation requirements per IEC 60950-1 and IEC 61010-1
Common-Mode Transient Immunity	100 kV/µs - maintains signal integrity in high-dv/dt environments like IGBT gate drive circuits
Supply Voltage Range	1.8 V to 5 V per side - allows direct interfacing with low-voltage MCUs and legacy 5 V peripherals
Fail-Safe Output State	High - ensures safe default state for enable signals in safety-critical power stages
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive and industrial ambient conditions

Pinout & Package

ADUM141E1BRZ is housed in a RoHS-compliant 16-lead SOIC narrow-body (R-16) package with creepage and clearance ≥4.0 mm, rated for 3000 V_RMS isolation. Pin functions follow standard ADuM14xxE1 channel assignment: inputs on side 1 (pins 1–4), outputs on side 2 (pins 10–13), with VDD1/VDD2, GND1/GND2, and dedicated enable/disable controls.

Pin/Terminal	Circuit Role	Design Meaning
1–4 (A1–D1)	Input Channels	Unidirectional logic inputs referenced to VDD1/GND1; accept 1.8–5 V CMOS levels
10–13 (A2–D2)	Output Channels	Corresponding isolated outputs referenced to VDD2/GND2; fail-safe high when disabled
5, 14	VDD1 / VDD2	Independent power supplies for each side; support mixed-voltage system interfacing
6, 15	GND1 / GND2	Galvanically separated ground references; must not be connected externally
7, 8	DISABLE1 / VE2	Active-low disable for side 1 inputs; pull-up enable for side 2 outputs - enables partial channel shutdown
16	NC	No internal connection; left floating per datasheet - no PCB trace required

Key Features

Feature	Design Value
iCoupler® transformer isolation	Eliminates LED aging and CTR degradation of optocouplers; enables >50-year lifetime at 125°C
Backward pin compatibility	Direct replacement for ADuM1400/ADuM1401/ADuM1402 in existing layouts - no PCB revision needed
AEC-Q100 qualification	Qualified to Grade 1 (−40°C to +125°C) for automotive powertrain and body electronics
Low dynamic power	7.7 mA typical supply current at 100 Mbps (side 1) - reduces thermal load in dense PCBs
Dual UVLO protection	Independent 1.6 V UVLO on both sides prevents undefined output states during asymmetric power sequencing

Applications

Industrial Motor Control	SPI Isolation for Data Converters
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 direction, enable, and overcurrent signals with <13 ns propagation delay and matched channel skew ≤3 ns. Use Value: Prevents ground loop noise from corrupting gate drive timing, ensuring reliable IGBT switching and reducing EMI-induced misfires.	Use Scenario: Isolating SPI bus between precision ADC/DAC and host processor in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional SPI clock/data isolation with 150 Mbps capability and dc-correct transmission for continuous conversion sequences. Use Value: Maintains data integrity across noisy factory floors while supporting high-resolution sampling without bit errors or frame loss.
Automotive Battery Management	Isolated CAN Transceiver Interface
Use Scenario: Isolating cell voltage monitoring ICs from main BMS controller in EV traction battery packs. IC Role / Device Role / Timing Role: Unidirectional isolation of analog front-end status signals and watchdog lines with fail-safe high default state. Use Value: Ensures safe shutdown of monitoring circuitry during power loss, meeting ASIL-B functional safety requirements.	Use Scenario: Isolating CAN controller from external CAN transceiver in charging station communication modules. IC Role / Device Role / Timing Role: Isolating TXD/RXD lines and transceiver standby control, leveraging 100 kV/µs CMTI to reject switching noise from adjacent SMPS. Use Value: Prevents bus lockup caused by transients during AC/DC converter switching, improving network uptime and diagnostic reliability.

Industrial Motor Control

SPI Isolation for Data Converters

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 direction, enable, and overcurrent signals with <13 ns propagation delay and matched channel skew ≤3 ns.

Use Value: Prevents ground loop noise from corrupting gate drive timing, ensuring reliable IGBT switching and reducing EMI-induced misfires.

Use Scenario: Isolating SPI bus between precision ADC/DAC and host processor in programmable logic controllers.

IC Role / Device Role / Timing Role: Bidirectional SPI clock/data isolation with 150 Mbps capability and dc-correct transmission for continuous conversion sequences.

Use Value: Maintains data integrity across noisy factory floors while supporting high-resolution sampling without bit errors or frame loss.

Automotive Battery Management

Isolated CAN Transceiver Interface

Use Scenario: Isolating cell voltage monitoring ICs from main BMS controller in EV traction battery packs.

IC Role / Device Role / Timing Role: Unidirectional isolation of analog front-end status signals and watchdog lines with fail-safe high default state.

Use Value: Ensures safe shutdown of monitoring circuitry during power loss, meeting ASIL-B functional safety requirements.

Use Scenario: Isolating CAN controller from external CAN transceiver in charging station communication modules.

IC Role / Device Role / Timing Role: Isolating TXD/RXD lines and transceiver standby control, leveraging 100 kV/µs CMTI to reject switching noise from adjacent SMPS.

Use Value: Prevents bus lockup caused by transients during AC/DC converter switching, improving network uptime and diagnostic reliability.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM140E1BRZ	Same SOIC-16 package and pinout; lower data rate (100 Mbps vs. 150 Mbps); identical fail-safe high behavior	Suitable for cost-sensitive designs where 100 Mbps suffices, e.g., slower SPI or GPIO isolation	Select when bandwidth headroom is not required and BOM cost optimization is prioritized
SI8641ED-B-IS	Capacitive isolation; 150 Mbps; 5 kV_RMS rating; different pinout (no DISABLE1/VE2); higher CMTI (150 kV/µs)	Requires PCB redesign; better suited for ultra-high-noise medical imaging systems	Choose only if higher isolation voltage or superior CMTI justifies layout change and qualification effort

Compared with ADUM140E1BRZ, the ADUM141E1BRZ provides 50% higher guaranteed data rate while retaining pin compatibility and fail-safe behavior; versus SI8641ED-B-IS, it offers drop-in replacement capability and proven AEC-Q100 qualification but trades off peak CMTI for design reuse efficiency.

Availability

ADUM141E1BRZ is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management, and isolated SPI data converter interfaces requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for ADUM141E1BRZ 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 instrumentation, industrial automation, and automotive systems.

The ADuM14xxE family is designed for robust multichannel digital isolation in harsh electromagnetic environments, targeting applications demanding high CMTI, wide supply range, and automotive-grade reliability without optical coupling limitations.

FAQ

What is the isolation voltage rating of ADUM141E1BRZ?

The ADUM141E1BRZ has a rated dielectric withstand voltage of 3000 V_RMS for 1 minute per UL 1577 and IEC/EN/CSA 60950-1 standards. This applies to its R-16 narrow-body SOIC package and supports reinforced insulation in industrial and automotive end equipment. The VIORM working voltage is 565 V_PEAK, validated per DIN EN IEC 60747-17 (VDE 0884-17).

Does ADUM141E1BRZ support level translation between different supply voltages?

Yes, ADUM141E1BRZ supports true bidirectional level translation: side 1 (VDD1) and side 2 (VDD2) operate independently from 1.8 V to 5 V. For example, it can translate 1.8 V logic from an ultra-low-power MCU to 5 V signals driving an isolated ADC, with full timing specifications maintained across all combinations.

Is ADUM141E1BRZ pin-compatible with earlier ADuM1400-series isolators?

Yes, ADUM141E1BRZ is explicitly pin-compatible with ADuM1400, ADuM1401, and ADuM1402 per the datasheet's "Backward compatibility" section. This includes identical pin functions, spacing, and SOIC-16 footprint, enabling drop-in replacement without PCB modification in legacy designs.

What fail-safe behavior does ADUM141E1BRZ exhibit when input power is lost?

ADUM141E1BRZ is configured as an E1 variant, meaning its outputs default to logic high when VDD1 is unpowered or DISABLE1 is asserted. This fail-safe high state ensures gate drivers remain disabled and safety-critical control paths stay de-energized during power faults - a requirement in IEC 61800-5-2 compliant drives.

How does ADUM141E1BRZ handle common-mode transients in motor drive applications?

ADUM141E1BRZ achieves 100 kV/µs common-mode transient immunity (CMTI), verified per IEC 60747-17. In motor drives, this prevents false triggering during IGBT switching events where rapid dv/dt couples across isolation barriers - maintaining accurate PWM edge timing even with >1 kV/ns transients present.

ADUM141E1BRZ 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:: 3/1

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

ADUM141E1BRZ FAQ

1.How can I place an order for ADUM141E1BRZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM141E1BRZ 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 ADUM141E1BRZ reliable?

The price and inventory of ADUM141E1BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM141E1BRZ is usually 5 days.

3.What payment methods are accepted for ADUM141E1BRZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM141E1BRZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM141E1BRZ?

ADUM141E1BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM141E1BRZ 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 ADUM141E1BRZ?

For technical support, including ADUM141E1BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM141E1BRZ requirements.

6.How does Aetrix verify that ADUM141E1BRZ is sourced from the original manufacturer or authorized distributors?

All ADUM141E1BRZ 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 ADUM141E1BRZ meets industry standards.

7.What is the process for return or replacement of ADUM141E1BRZ?

All ADUM141E1BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM141E1BRZ, 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 ADUM141E1BRZ part is unused and in its original packaging.

Return procedure for ADUM141E1BRZ:

1.Submit a request within 90 days.

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

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