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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM231D1BRWZ

Name: ADUM231D1BRWZ
Brand: Analog Devices Inc.
SKU: ADUM231D1BRWZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM231D1BRWZ

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: ADUM231D1BRWZ.pdf

Description:: DGTL ISO 5000VRMS 3CH GP 16SOIC

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Product details

Overview

ADUM231D1BRWZ from Analog Devices is a triple-channel, 5.0 kV_RMS reinforced digital isolator based on iCoupler® technology, designed for high-noise industrial and medical interfaces. It delivers 150 Mbps data rate, 13 ns max propagation delay at 5 V, and operates across 1.8 V to 5 V supply rails with level translation. It is used in SPI isolation for isolated ADCs and motor control gate drivers requiring robust common-mode transient immunity.

For engineers reviewing the ADUM231D1BRWZ datasheet, ADUM231D1BRWZ pinout, ADUM231D1BRWZ application, or ADUM231D1BRWZ equivalent, this page provides verified specifications, fail-safe output behavior, safety certifications (UL 1577, VDE 0884-17), SOIC-16 package details, and real-world design context for high-reliability isolation.

Technical Context

The ADUM231D1BRWZ implements three independent unidirectional isolation channels using monolithic air-core transformers, enabling dc-correct operation without input transitions. Its architecture supports fail-safe high output state when input power is absent or inputs are disabled - a critical feature for safety-critical shutdown sequences.

It meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 849 V_PEAK, and achieves 100 kV/µs common-mode transient immunity under 1000 V common-mode step conditions. Channel matching is ≤3.0 ns, ensuring precise timing alignment in multi-signal systems like isolated SPI clock/data lines.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	5.0 kV_RMS for 1 minute - enables reinforced insulation in medical (IEC 60601-1) and industrial (IEC 62368-1) safety-critical systems
Data Rate	150 Mbps maximum - supports high-speed serial interfaces including isolated SPI, RS-485 transceivers, and digital power controller feedback loops
Propagation Delay	13 ns max at 5 V - ensures tight timing budgets in real-time control applications such as servo drives and inverters
Common-Mode Transient Immunity	100 kV/µs - maintains signal integrity in noisy environments like motor drives and factory automation with fast-switching power electronics
Supply Voltage Range	1.8 V to 5.5 V per side - enables level translation between low-voltage microcontrollers (1.8 V/3.3 V) and higher-voltage peripherals (5 V)
Fail-Safe Output State	High - outputs default to logic high during input-side power loss, supporting safe default states in PLC I/O modules and emergency stop circuits
Operating Temperature	−40°C to +125°C - qualified for under-hood automotive, industrial motor control, and outdoor energy infrastructure deployments

Pinout & Package

ADUM231D1BRWZ is housed in a 16-lead, RoHS-compliant, wide-body SOIC package (RW-16) with 8.3 mm creepage and clearance, optimized for reinforced insulation in high-voltage systems.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	Input-side power and signals (VDD1, GND1, AIN, BIN, CIN, DISABLE1, VE2)	Pins 1–8 form the primary (input) side: VDD1 powers channel inputs; DISABLE1 enables input disable mode; VE2 controls output enable on secondary side
9, 10, 11, 12, 13, 14, 15, 16	Output-side power and signals (VDD2, GND2, AOUT, BOUT, COUT, OE2)	Pins 9–16 form the isolated (output) side: VDD2 powers outputs; OE2 enables tristate control of all three output channels

Key Features

Feature	Design Value
Reinforced insulation certification	DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 60601-1 (2 MOPP) - eliminates need for external safety capacitors or creepage extenders in certified designs
DC-correct operation	Maintains output state without input toggling - prevents spurious resets or latch-up in static control signals like enable/disable lines
Channel matching	≤3.0 ns codirectional skew - enables synchronous sampling across multiple isolated analog channels in isolated data acquisition systems
Low dynamic power	0.01–0.02 mA/Mbps - reduces thermal load in densely packed isolated gate driver boards and compact power supplies
Undervoltage lockout (UVLO)	1.5 V / 1.6 V thresholds with 0.1 V hysteresis - ensures clean power-on reset and prevents metastable operation during brownout conditions

Applications

Industrial Motor Control	SPI Isolation for Isolated ADCs
Use Scenario: Isolating PWM gate drive signals and fault feedback from 600 V IGBT half-bridges in servo inverters. IC Role / Device Role / Timing Role: Provides reinforced isolation for three independent control signals (e.g., HO, LO, FAULT) with matched propagation delay. Use Value: Enables safe, high-speed switching while meeting IEC 61800-5-1 reinforced insulation requirements and eliminating ground loop noise.	Use Scenario: Isolating SPI clock, MOSI, and MISO lines between a 3.3 V MCU and a 5 V isolated Σ-Δ ADC in a high-precision current sensor. IC Role / Device Role / Timing Role: Acts as a triple-channel bidirectional SPI isolator with precise channel-to-channel timing alignment. Use Value: Preserves 150 Mbps throughput and sub-3 ns skew to maintain ADC sampling accuracy and avoid SPI frame corruption.
Medical Patient Monitoring	PLC Digital I/O Modules
Use Scenario: Isolating digital sensor interface lines (e.g., temperature, ECG lead-off detection) in Class II patient-connected devices. IC Role / Device Role / Timing Role: Delivers 2 MOPP reinforced isolation per IEC 60601-1 with fail-safe high outputs during power loss. Use Value: Ensures patient safety compliance without external watchdog circuitry; maintains known logic state during main power interruption.	Use Scenario: Providing isolated digital input conditioning for 24 V DC field sensors in modular PLC backplanes. IC Role / Device Role / Timing Role: Interfaces three discrete 24 V inputs to a 3.3 V logic domain with integrated level translation and UVLO protection. Use Value: Reduces component count by eliminating discrete level shifters and voltage supervisors while meeting IEC 61000-4-5 surge immunity.

Industrial Motor Control

SPI Isolation for Isolated ADCs

Use Scenario: Isolating PWM gate drive signals and fault feedback from 600 V IGBT half-bridges in servo inverters.

IC Role / Device Role / Timing Role: Provides reinforced isolation for three independent control signals (e.g., HO, LO, FAULT) with matched propagation delay.

Use Value: Enables safe, high-speed switching while meeting IEC 61800-5-1 reinforced insulation requirements and eliminating ground loop noise.

Use Scenario: Isolating SPI clock, MOSI, and MISO lines between a 3.3 V MCU and a 5 V isolated Σ-Δ ADC in a high-precision current sensor.

IC Role / Device Role / Timing Role: Acts as a triple-channel bidirectional SPI isolator with precise channel-to-channel timing alignment.

Use Value: Preserves 150 Mbps throughput and sub-3 ns skew to maintain ADC sampling accuracy and avoid SPI frame corruption.

Medical Patient Monitoring

PLC Digital I/O Modules

Use Scenario: Isolating digital sensor interface lines (e.g., temperature, ECG lead-off detection) in Class II patient-connected devices.

IC Role / Device Role / Timing Role: Delivers 2 MOPP reinforced isolation per IEC 60601-1 with fail-safe high outputs during power loss.

Use Value: Ensures patient safety compliance without external watchdog circuitry; maintains known logic state during main power interruption.

Use Scenario: Providing isolated digital input conditioning for 24 V DC field sensors in modular PLC backplanes.

IC Role / Device Role / Timing Role: Interfaces three discrete 24 V inputs to a 3.3 V logic domain with integrated level translation and UVLO protection.

Use Value: Reduces component count by eliminating discrete level shifters and voltage supervisors while meeting IEC 61000-4-5 surge immunity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM231D0BRWZ	Fail-safe output state is low (not high); identical pinout, specs, and package	Preferred where system requires default-low assertion on power loss (e.g., active-low reset lines)	Select ADUM231D0BRWZ only if low-fail-safe behavior matches your safety architecture; otherwise ADUM231D1BRWZ is required.
SI8631BB-B-IS	3-channel, 5 kV_RMS, but uses capacitive isolation; VIORM = 600 V_PEAK; no VDE 0884-17 certification	Lacks 2 MOPP rating for IEC 60601-1 medical use; suitable for industrial I/O where lower safety tier suffices	Choose SI8631BB-B-IS only for cost-sensitive industrial applications without medical or high-reliability safety mandates.

Compared with ADUM231D0BRWZ and SI8631BB-B-IS, ADUM231D1BRWZ uniquely combines fail-safe high output, VDE 0884-17 certification, and 849 V_PEAK VIORM - making it the only option for safety-critical medical and high-isolation industrial designs requiring guaranteed high-state defaults.

Availability

ADUM231D1BRWZ is available at Aetrix Electronics and suitable for industrial motor control, medical patient monitoring, isolated data acquisition, and PLC digital I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for ADUM231D1BRWZ 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 precision instrumentation, industrial automation, and healthcare markets.

The ADuM231D series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, safety-certified isolation in harsh electromagnetic environments where optocouplers fall short.

FAQ

What safety certifications does ADUM231D1BRWZ hold?

ADUM231D1BRWZ is certified to UL 1577 (5000 V_RMS), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation, IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. These approvals validate its use in medical, industrial, and test equipment without additional external safety components.

Does ADUM231D1BRWZ support level translation between different supply voltages?

Yes, ADUM231D1BRWZ supports independent 1.8 V to 5.5 V supplies on each side, enabling seamless level translation - for example, isolating a 1.8 V FPGA I/O to a 5 V DAC interface. Input thresholds scale with VDDx (VIH = 0.7 × VDDx), ensuring reliable logic interpretation across voltage domains.

What is the fail-safe behavior of ADUM231D1BRWZ during input power loss?

ADUM231D1BRWZ is configured for fail-safe high output: when VDD1 is removed or DISABLE1 is asserted, all three output channels (AOUT, BOUT, COUT) transition to and hold logic high. This behavior is hardwired per the D1 variant and supports safe default states in motor control enable lines and medical alarm circuits.

Can ADUM231D1BRWZ be used in 150 Mbps SPI applications?

Yes, ADUM231D1BRWZ guarantees 150 Mbps data rate with <3 ns pulse width distortion and ≤13 ns propagation delay at 5 V. Its matched channel timing (≤3.0 ns skew) preserves SPI SCLK–MOSI–MISO phase relationships, making it suitable for high-resolution isolated ADCs and fast DAC interfaces.

What is the package type and creepage distance of ADUM231D1BRWZ?

ADUM231D1BRWZ uses a 16-lead RW-16 wide-body SOIC package with minimum creepage and clearance of 8.3 mm (per IEC 62368-1, pollution degree 2). This package meets reinforced insulation requirements for up to 600 V_RMS working voltage and supports high-density PCB layouts without external spacing constraints.

ADUM231D1BRWZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: iCoupler®

Package/Case:: 16-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Active

Technology:: Magnetic Coupling

Type:: General Purpose

Isolated Power:: No

Number of Channels:: 3

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

Channel Type:: Unidirectional

Voltage - Isolation:: 5000Vrms

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

ADUM231D1BRWZ FAQ

1.How can I place an order for ADUM231D1BRWZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM231D1BRWZ 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 ADUM231D1BRWZ reliable?

The price and inventory of ADUM231D1BRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM231D1BRWZ is usually 5 days.

3.What payment methods are accepted for ADUM231D1BRWZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM231D1BRWZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM231D1BRWZ?

ADUM231D1BRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM231D1BRWZ 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 ADUM231D1BRWZ?

For technical support, including ADUM231D1BRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM231D1BRWZ requirements.

6.How does Aetrix verify that ADUM231D1BRWZ is sourced from the original manufacturer or authorized distributors?

All ADUM231D1BRWZ 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 ADUM231D1BRWZ meets industry standards.

7.What is the process for return or replacement of ADUM231D1BRWZ?

All ADUM231D1BRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM231D1BRWZ, 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 ADUM231D1BRWZ part is unused and in its original packaging.

Return procedure for ADUM231D1BRWZ:

1.Submit a request within 90 days.

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

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