Analog Devices Inc. ADUM242D1BRWZ

Overview

ADUM242D1BRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 5.0 kV_rms reinforced insulation, 150 Mbps guaranteed data rate, and 13 ns max propagation delay at 5 V operation. It supports 1.8 V to 5 V level translation across the isolation barrier and operates up to 125°C, enabling robust SPI/data converter isolation in industrial motor drives.

For engineers reviewing the ADUM242D1BRWZ datasheet, ADUM242D1BRWZ pinout, ADUM242D1BRWZ application, or ADUM242D1BRWZ equivalent, this page delivers verified specifications, SOIC_W-16 pin mapping, fail-safe high/low output options, safety certifications (UL 1577, VDE 0884-17), and real-world use context for high-noise industrial and medical systems.

Technical Context

The ADUM242D1BRWZ implements four independent unidirectional channels using monolithic air-core transformer coupling, with dc-correct output behavior ensuring stable logic states even during input inactivity. Its architecture guarantees tight channel matching (≤3.0 ns) and low pulse width distortion (≤3 ns), critical for timing-sensitive interfaces like isolated SPI clock and data lines.

It features dual supply domains (VDD1/VDD2), each supporting 1.8 V–5 V operation, enabling voltage-level translation without external level shifters. Fail-safe outputs default to high or low when input power is absent, and integrated undervoltage lockout (UVLO) triggers at 1.5 V/1.6 V thresholds to prevent metastable operation.

Key Specifications

Pinout & Package

ADUM242D1BRWZ uses a 16-lead, RoHS-compliant wide-body SOIC package (RW-16, also designated SOIC_W), with 7.8 mm creepage and clearance, rated for pollution degree 2 and altitudes ≤2000 m. Input-side pins (1–8) and output-side pins (9–16) are physically segregated to maintain isolation integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM242E1BRWZ and SI8642ED-B-IS, ADUM242D1BRWZ offers superior common-mode transient immunity (100 vs. 75 kV/µs) and tighter propagation delay (13 vs. 15 ns), making it preferred for high-reliability motor control and medical isolation where deterministic timing and noise resilience are critical.

Availability

ADUM242D1BRWZ is available at Aetrix Electronics and suitable for industrial motor drives, isolated data acquisition systems, and programmable logic controller (PLC) digital I/O modules requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.

Supply support for ADUM242D1BRWZ 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 industrial, automotive, communications, and healthcare markets.

The ADUM242D1BRWZ belongs to the ADuM24xxD/E family of iCoupler® digital isolators, designed specifically for high-speed, high-reliability galvanic isolation in safety-critical industrial and medical equipment where optocoupler limitations must be overcome.

FAQ

What is the maximum guaranteed data rate for ADUM242D1BRWZ?

The ADUM242D1BRWZ guarantees a maximum data rate of 150 Mbps across all operating conditions (−40°C to +125°C, 1.8 V–5 V supplies). While higher speeds may be achievable in specific lab conditions, 150 Mbps is the only rate validated and warranted by Analog Devices for production designs using ADUM242D1BRWZ.

Does ADUM242D1BRWZ support level translation between different supply voltages?

Yes, ADUM242D1BRWZ supports bidirectional level translation: VDD1 can operate from 1.8 V to 5 V independently of VDD2, which also ranges from 1.8 V to 5 V. This allows direct interface between a 1.8 V microcontroller's GPIO and a 5 V isolated ADC or gate driver without external level shifters-fully implemented within ADUM242D1BRWZ.

What safety certifications does ADUM242D1BRWZ hold?

ADUM242D1BRWZ is certified to UL 1577 (5000 V_rms), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation (849 V_peak), IEC/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. These approvals are valid for the RW-16 SOIC_W package and documented in Analog Devices' certification files E214100 and 40051926.

How does the fail-safe output function work on ADUM242D1BRWZ?

ADUM242D1BRWZ defaults to a logic-high output state when VDD1 is unpowered or the DISABLE1 input is asserted. This behavior is hardwired per the "D1" suffix and ensures deterministic system response during power-up, brownout, or communication failure-critical for enabling safe shutdown in motor control or medical devices using ADUM242D1BRWZ.

What is the package type and creepage distance of ADUM242D1BRWZ?

ADUM242D1BRWZ uses the RW-16 wide-body SOIC package (SOIC_W), with minimum external creepage and clearance distances of 7.8 mm between input and output sides. This meets IEC 62368-1 and IEC 60601-1 requirements for reinforced insulation at pollution degree 2 and altitudes ≤2000 m.