Analog Devices Inc. ADUM4402BRWZ

Overview

ADUM4402BRWZ 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 motor drive gate driver interfaces to isolate control logic from high-voltage power stages.

For engineers reviewing the ADUM4402BRWZ datasheet, ADUM4402BRWZ pinout, ADUM4402BRWZ application, or ADUM4402BRWZ equivalent, this page delivers verified specifications, SOIC-16 RW-16 package details, safety-certified isolation parameters, and real-world design context for medical, industrial, and power supply systems requiring reinforced insulation and ESD-hardened signal integrity.

Technical Context

The ADUM4402BRWZ implements iCoupler® monolithic air-core transformer technology across four independent channels, enabling simultaneous bidirectional data transfer with precise timing (≤2 ns channel-to-channel matching) and integrated refresh circuitry for DC-correct output during power-up or static input conditions.

It supports mixed-voltage operation (3.3 V/5 V on opposite sides), features an output enable function per side (VE1/VE2), and achieves >25 kV/µs common-mode transient immunity-critical for noise-prone motor drive and medical equipment environments where ground loop suppression and fast transient rejection are mandatory.

Key Specifications

Pinout & Package

ADUM4402BRWZ uses a 16-lead SOIC wide-body package (RW-16) with 7.8 mm minimum creepage and clearance, optimized for reinforced insulation in high-voltage applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8642ED-B-IS and ISO6742QDWR, ADUM4402BRWZ uniquely combines 90 Mbps speed, 3.3 V/5 V bidirectional level translation, VDE 0884-17-certified 50+ year insulation lifetime, and 2 MOPP medical safety-making it the only option for high-reliability, mixed-voltage, long-lifecycle isolation in Class II medical and industrial power systems.

Availability

ADUM4402BRWZ is available at Aetrix Electronics and suitable for motor drives, medical diagnostic equipment, and industrial power supplies requiring stable component supply, long-term lifecycle assurance, and certified reinforced isolation.

Supply support for ADUM4402BRWZ 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-critical isolation in medical, motor control, and energy infrastructure applications-emphasizing low power, precise timing, and regulatory-compliant reinforced insulation.

FAQ

What is the maximum data rate supported by ADUM4402BRWZ?

The ADUM4402BRWZ supports a maximum data rate of 90 Mbps in NRZ format. This specification applies to the C-grade version and is validated under 3.3 V or 5 V supply conditions with CL = 15 pF loading. At lower rates (e.g., 10 Mbps), supply current drops to 4.3 mA per channel (5 V) or 2.4 mA per channel (3.3 V), enabling optimization for power-sensitive designs. The ADUM4402BRWZ maintains timing integrity up to this limit with ≤2 ns pulse width distortion.

Does ADUM4402BRWZ support level translation between 3.3 V and 5 V domains?

Yes, ADUM4402BRWZ supports true bidirectional level translation: it operates with VDD1 = 3.3 V and VDD2 = 5 V (or vice versa), allowing logic signals from a 3.3 V microcontroller to drive 5 V gate drivers or analog front-ends across the isolation barrier. Input thresholds adapt automatically (VIH = 1.6 V at 3.3 V, 2.0 V at 5 V), and output drive strength meets VOH/VOL specs under mixed-supply conditions per Tables 7 and 10 in the datasheet.

What safety certifications apply to ADUM4402BRWZ?

ADUM4402BRWZ holds UL 1577 (5000 V_RMS for 1 min), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) approvals. Its RW-16 package is rated for reinforced insulation at 645 V_PEAK (VIORM) and 456 V_RMS (VIOWM), with 7.8 mm creepage/clearance-validated for use in Class I and Class II medical devices and industrial mains-connected equipment.

How does the output enable (VE2) pin function on ADUM4402BRWZ?

The VE2 pin on ADUM4402BRWZ is an active-high output enable for all Side 2 outputs (VOA–VOD). When VE2 is high or left open, outputs reflect their respective input states; when VE2 is low, all four outputs enter high-impedance state within 8 ns. This feature enables safe power sequencing, hot-swap I/O modules, and fault containment-critical in PLC and motor drive systems where controlled shutdown prevents latch-up or unintended actuation.

What is the common-mode transient immunity (CMTI) performance of ADUM4402BRWZ?

ADUM4402BRWZ delivers >25 kV/µs common-mode transient immunity, measured per IEC 61000-4-x with VCM = 1000 V and 800 V transient magnitude. This performance is achieved through proprietary transformer layout and on-chip filtering, ensuring reliable operation in noisy environments such as IGBT-based inverters and switch-mode power supplies-where fast dV/dt edges would disrupt optocoupler or basic capacitive isolators.