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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. ADUM4401CRIZ-RL

Name: ADUM4401CRIZ-RL
Brand: Analog Devices Inc.
SKU: ADUM4401CRIZ-RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADUM4401CRIZ-RL

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

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

Datasheet:: ADUM4401CRIZ-RL.pdf

Description:: DGTL ISO 5000VRMS 4CH GP 16SOIC

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Product details

Overview

ADUM4401CRIZ-RL from Analog Devices is a 5 kV_RMS quad-channel digital isolator with bidirectional communication, 90 Mbps data rate, 2 ns max pulse width distortion, and 3.3 V/5 V level translation capability-used in medical equipment isolation barriers and motor drive control interfaces.

For engineers reviewing the ADUM4401CRIZ-RL datasheet, ADUM4401CRIZ-RL pinout, ADUM4401CRIZ-RL application, or ADUM4401CRIZ-RL equivalent, this page delivers verified specifications, safety-rated insulation details, channel configuration clarity, and real-world design implications for high-noise industrial and regulated healthcare systems.

Technical Context

The ADUM4401CRIZ-RL implements iCoupler® monolithic air-core transformer technology across four independent channels, supporting asymmetric supply operation (e.g., 5 V on Side 1, 3.3 V on Side 2) with guaranteed DC correctness via patented refresh circuitry during power-up and signal static conditions.

It features dual output-enable controls (VE1 on Side 1, VE2 on Side 2), precise timing (≤2 ns channel-to-channel matching), and system-level ESD robustness per IEC 61000-4-x-enabled by layout-aware internal enhancements rather than external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	DC to 90 Mbps (NRZ); supports high-speed SPI, RS-485, and gate driver feedback loops without timing violation.
Isolation Rating	5000 V_RMS for 1 minute; certified reinforced insulation per UL 1577, DIN EN IEC 60747-17 (VDE 0884-17), and IEC 60601-1 (2 MOPP).
Propagation Delay	18–32 ns (C grade, 5 V operation); enables sub-30 ns loop timing in closed-loop motor control.
Pulse Width Distortion	≤2 ns (C grade); preserves duty cycle integrity for PWM signals crossing isolation barrier.
Common-Mode Transient Immunity	>25 kV/µs; maintains logic state integrity during fast-switching events in inverters and power supplies.
Supply Voltage Range	3.0 V to 5.5 V per side; allows direct interfacing between 3.3 V microcontrollers and 5 V field-side peripherals.
Operating Temperature	−40°C to +105°C; qualified for under-hood automotive subsystems and industrial PLC backplanes.

Pinout & Package

ADUM4401CRIZ-RL uses a 16-lead SOIC wide-body package (RI-16) with enhanced creepage (8.7 mm clearance/creepage), optimized for reinforced insulation in medical and industrial applications.

Pin/Terminal	Circuit Role	Design Meaning
1, 16	VDD1 / VDD2	Independent power supplies for isolated sides; each supports 3.0–5.5 V, enabling voltage translation.
2, 8, 9, 15	GND1 / GND2	Dedicated ground references per side; mandatory separation prevents ground-loop noise coupling.
3–5, 11	VIA–VIC, VOD	Three input-only pins (Side 1) and one output-only pin (Side 2); defines ADUM4401's 3:1 unidirectional + 1 bidirectional channel mapping.
6, 10, 12–14	VOD, VE1, VOC–VOA	Output-enable (VE1) on Side 1; outputs VOC–VOA and VOD on Side 2; enables selective channel shutdown without affecting others.

Key Features

Feature	Design Value
Bidirectional channel flexibility	Configurable as 3 inputs + 1 output (Side 1 → Side 2) plus output-enable control on both sides for dynamic direction management.
DC-correct refresh architecture	Maintains output state during prolonged input inactivity or power sequencing-no external watchdog or refresh timer required.
Low-power scalability	0.9 mA/channel @ 2 Mbps (3.3 V); 4.3 mA/channel @ 10 Mbps (5 V); enables energy-sensitive portable medical devices.
Noise-immune input filtering	Integrated glitch filter rejects <10 ns transients-reduces need for external RC filtering in noisy motor drive environments.
Safety-certified layout support	RI-16 package provides 8.7 mm creepage/clearance; meets IEC 60601-1 2 MOPP and IEC 61010-1 overvoltage Category III requirements.

Applications

Motor Drive Control	Medical Patient Monitoring
Use Scenario: Isolating gate driver signals and current-sense feedback in 3-phase inverter stages. IC Role / Device Role / Timing Role: Quad-channel isolator providing PWM input isolation (CH A–C), fault feedback (CH D), and side-specific output enable for safe shutdown. Use Value: 2 ns pulse width distortion preserves PWM fidelity; >25 kV/µs CMTI prevents false triggering during IGBT switching.	Use Scenario: Separating patient-connected analog front-end (AFE) from digital processing unit in ECG/EEG systems. IC Role / Device Role / Timing Role: Reinforced-isolation barrier for serial data (SPI), control lines, and alarm signals-meeting IEC 60601-1 2 MOPP. Use Value: 5000 V_RMS rating and 645 V_PEAK VIORM ensure patient safety; 105°C rating supports compact, fanless enclosure designs.
Industrial PLC I/O Modules	Renewable Energy Inverters
Use Scenario: Digitally isolating discrete input/output signals between field-side sensors/actuators and controller-side logic. IC Role / Device Role / Timing Role: Four independent channels handling 24 V DC input sensing, relay control, status reporting, and enable signaling. Use Value: 3.3 V/5 V level translation bridges legacy 5 V logic and modern low-voltage MCUs; 16-pin SOIC fits standard PCB footprints.	Use Scenario: Isolating MPPT controller communication and DC-link voltage monitoring in solar string inverters. IC Role / Device Role / Timing Role: Bidirectional isolation for UART/RS-485 bus and unidirectional isolation for ADC readback and fault flags. Use Value: 90 Mbps capability supports high-resolution ADC streaming; reinforced insulation withstands 1000 V DC bus potentials.

Motor Drive Control

Medical Patient Monitoring

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

IC Role / Device Role / Timing Role: Quad-channel isolator providing PWM input isolation (CH A–C), fault feedback (CH D), and side-specific output enable for safe shutdown.

Use Value: 2 ns pulse width distortion preserves PWM fidelity; >25 kV/µs CMTI prevents false triggering during IGBT switching.

Use Scenario: Separating patient-connected analog front-end (AFE) from digital processing unit in ECG/EEG systems.

IC Role / Device Role / Timing Role: Reinforced-isolation barrier for serial data (SPI), control lines, and alarm signals-meeting IEC 60601-1 2 MOPP.

Use Value: 5000 V_RMS rating and 645 V_PEAK VIORM ensure patient safety; 105°C rating supports compact, fanless enclosure designs.

Industrial PLC I/O Modules

Renewable Energy Inverters

Use Scenario: Digitally isolating discrete input/output signals between field-side sensors/actuators and controller-side logic.

IC Role / Device Role / Timing Role: Four independent channels handling 24 V DC input sensing, relay control, status reporting, and enable signaling.

Use Value: 3.3 V/5 V level translation bridges legacy 5 V logic and modern low-voltage MCUs; 16-pin SOIC fits standard PCB footprints.

Use Scenario: Isolating MPPT controller communication and DC-link voltage monitoring in solar string inverters.

IC Role / Device Role / Timing Role: Bidirectional isolation for UART/RS-485 bus and unidirectional isolation for ADC readback and fault flags.

Use Value: 90 Mbps capability supports high-resolution ADC streaming; reinforced insulation withstands 1000 V DC bus potentials.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SI8440AB-B-IS	Capacitive isolation; 5 kV_RMS; 150 Mbps max; no integrated refresh; higher CMTI (35 kV/µs)	Lacks DC-correctness guarantee during static conditions; requires external refresh or protocol layer handling	Prefer when maximum speed >90 Mbps is critical and system firmware can manage idle-state behavior.
ISO6741QDWR	Capacitive isolation; 5 kV_RMS; 50 Mbps max; 3.3 V only; no output-enable per side	Lower data rate; single-side enable only; not rated for 5 V operation or medical 2 MOPP	Select for cost-sensitive industrial I/O where 50 Mbps suffices and dual enable is unnecessary.

Compared with SI8440AB-B-IS and ISO6741QDWR, ADUM4401CRIZ-RL uniquely combines guaranteed DC correctness, dual-side output enable, and full 3.3 V/5 V interoperability-making it optimal for safety-critical, mixed-voltage, and low-duty-cycle applications like medical diagnostics and motor control.

Availability

ADUM4401CRIZ-RL is available at Aetrix Electronics and suitable for motor drives, medical diagnostic equipment, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and regulatory-compliant isolation performance.

Supply support for ADUM4401CRIZ-RL 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and healthcare markets since 1965.

The ADuM440x family was designed specifically for high-reliability, safety-certified digital isolation in regulated environments-emphasizing low power, precise timing, and system-level EMC robustness over raw speed alone.

FAQ

What is the exact channel configuration of ADUM4401CRIZ-RL?

ADUM4401CRIZ-RL has three input channels (VIA, VIB, VIC) and one output channel (VOD) on Side 1, and four output channels (VOA–VOD) plus output-enable (VE2) on Side 2-matching the ADuM4401 functional diagram. This 3:1 input-to-output ratio with bidirectional capability distinguishes it from ADUM4400 (4:0) and ADUM4402 (2:2).

Does ADUM4401CRIZ-RL support 5 V and 3.3 V simultaneously on opposite sides?

Yes, ADUM4401CRIZ-RL supports mixed-supply operation: VDD1 may be 5 V while VDD2 is 3.3 V (or vice versa), enabling seamless level translation. Electrical characteristics-including propagation delay and supply current-are fully specified for these configurations in Tables 7 and 10 of the Rev. G datasheet.

What safety certifications apply to ADUM4401CRIZ-RL?

ADUM4401CRIZ-RL holds UL 1577 (5000 V_RMS), DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation (645 V_PEAK), IEC 60601-1 (2 MOPP), and IEC 62368-1 approvals-all verified for the RI-16 package variant. Certification marks are laser-etched on the device body.

How does the refresh feature in ADUM4401CRIZ-RL work during power-up?

The ADUM4401CRIZ-RL integrates a patented refresh circuit that automatically transmits the last valid input state across the isolation barrier during power-up, power-down, or extended input inactivity-ensuring deterministic outputs without external intervention or protocol-layer handling.

Can ADUM4401CRIZ-RL replace optocouplers in existing designs without layout changes?

ADUM4401CRIZ-RL uses a standard 16-lead SOIC footprint (RI-16) with 1.27 mm pitch, matching common optocoupler footprints. However, its enhanced creepage (8.7 mm) may require minor PCB trace spacing adjustments to maintain certification-especially in IEC 60601-1 designs.

ADUM4401CRIZ-RL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: iCoupler®

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

Packaging:: Tape & Reel (TR)

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:: 5000Vrms

Common Mode Transient Immunity (Min):: 25kV/µs

Data Rate:: 90Mbps

Propagation Delay tpLH / tpHL (Max):: 32ns, 32ns

Pulse Width Distortion (Max):: 2ns

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

Voltage - Supply:: 3V ~ 5.5V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 105°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC-IC

ADUM4401CRIZ-RL FAQ

1.How can I place an order for ADUM4401CRIZ-RL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADUM4401CRIZ-RL 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 ADUM4401CRIZ-RL reliable?

The price and inventory of ADUM4401CRIZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4401CRIZ-RL is usually 5 days.

3.What payment methods are accepted for ADUM4401CRIZ-RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4401CRIZ-RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADUM4401CRIZ-RL?

ADUM4401CRIZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADUM4401CRIZ-RL 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 ADUM4401CRIZ-RL?

For technical support, including ADUM4401CRIZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4401CRIZ-RL requirements.

6.How does Aetrix verify that ADUM4401CRIZ-RL is sourced from the original manufacturer or authorized distributors?

All ADUM4401CRIZ-RL 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 ADUM4401CRIZ-RL meets industry standards.

7.What is the process for return or replacement of ADUM4401CRIZ-RL?

All ADUM4401CRIZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4401CRIZ-RL, 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 ADUM4401CRIZ-RL part is unused and in its original packaging.

Return procedure for ADUM4401CRIZ-RL:

1.Submit a request within 90 days.

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

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