Analog Devices Inc. ADUM242E0WBRWZ

Overview

ADUM242E0WBRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 5.0 kV_rms reinforced insulation for high-noise industrial and medical systems. It delivers 150 Mbps guaranteed 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 isolated SPI interfaces for motor drives and PLC I/O modules.

For engineers reviewing the ADUM242E0WBRWZ datasheet, ADUM242E0WBRWZ pinout, ADUM242E0WBRWZ application, or ADUM242E0WBRWZ equivalent, key selection criteria include its 849 V_peak VIORM rating, 100 kV/µs common-mode transient immunity, fail-safe low output configuration, SOIC_W-16 package with 7.8 mm creepage, and automotive qualification per AEC-Q100.

Technical Context

The ADUM242E0WBRWZ implements four independent unidirectional isolation channels using monolithic air-core transformers, enabling dc-correct operation without input transitions. Its architecture supports asymmetric supply operation (e.g., 1.8 V on side 1, 5 V on side 2) and includes integrated undervoltage lockout (UVLO) with 1.6 V threshold and 0.1 V hysteresis on both sides.

It features a fail-safe low output state when input power is absent or disabled, and supports tristate outputs via dedicated ENABLE/ DISABLE pins. Channel matching is ≤3.0 ns codirectional, and jitter is as low as 70 ps rms at 1.8 V operation - critical for timing-sensitive serial protocols like isolated SPI and RS-485 transceiver control.

Key Specifications

Pinout & Package

ADUM242E0WBRWZ uses a 16-lead RoHS-compliant SOIC_W (wide-body) package with 7.8 mm creepage and clearance, qualified for automotive applications and rated for operation up to +125°C ambient.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM242E1WBRWZ, ADUM242E0WBRWZ provides fail-safe low outputs - critical for safety-critical disable paths - while SI8642ED-B-IS offers identical performance specs but diverges in UVLO behavior and internal architecture, requiring validation of startup sequencing under brownout conditions.

Availability

ADUM242E0WBRWZ is available at Aetrix Electronics and suitable for industrial motor drives, medical patient monitors, programmable logic controller I/O modules, and battery management systems requiring stable component supply across extended product lifecycles.

Supply support for ADUM242E0WBRWZ 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 ADuM242x series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-CMTI galvanic isolation in safety-critical and noise-immune applications such as motor control, medical instrumentation, and energy infrastructure.

FAQ

What is the fail-safe output state of ADUM242E0WBRWZ?

The ADUM242E0WBRWZ has a fail-safe low output configuration. When the input-side supply (VDD1) is absent, or the DISABLE1 pin is asserted high, all four outputs transition to and remain in a logic-low state. This behavior is explicitly defined in the datasheet truth tables and ensures predictable, safe system behavior during power faults or initialization - a key requirement for ADUM242E0WBRWZ deployment in industrial safety interlocks and medical device isolation barriers.

Does ADUM242E0WBRWZ support level translation between different supply voltages?

Yes, ADUM242E0WBRWZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 1.8 V to 5 V. For example, it can translate 1.8 V logic from an FPGA I/O bank to 3.3 V signals driving an isolated ADC, or interface a 5 V microcontroller with a 2.5 V isolated sensor interface. This eliminates external level shifters and reduces BOM count - a verified capability confirmed across all operating voltage combinations in Tables 1–7 of the ADUM242E0WBRWZ datasheet.

What safety certifications does ADUM242E0WBRWZ hold?

ADUM242E0WBRWZ is certified to UL 1577 (5000 V_rms), IEC/EN/CSA 62368-1, DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. It achieves reinforced insulation with 849 V_peak VIORM and meets creepage/clearance requirements (7.8 mm) for pollution degree 2. These certifications are documented in Tables 9–13 of the official Analog Devices datasheet Rev. E.

Can ADUM242E0WBRWZ be used in automotive applications?

Yes, ADUM242E0WBRWZ is qualified for automotive applications per AEC-Q100 Grade 1 (−40°C to +125°C ambient). It is listed in the "Automotive Products" section of the datasheet and supports operation across the full temperature range with guaranteed 150 Mbps data rate and 100 kV/µs CMTI. Its SOIC_W-16 package and robust UVLO (1.6 V threshold) make it suitable for engine control units, battery management systems, and onboard chargers.

How does ADUM242E0WBRWZ differ from ADUM242D0WBRWZ?

ADUM242E0WBRWZ and ADUM242D0WBRWZ share identical pinout, package, and isolation specifications, but differ in fail-safe behavior and dynamic power consumption. The 'E' variant has fail-safe low outputs and lower quiescent current (e.g., 1.6 mA IDD1(Q) at 5 V), while the 'D' variant has fail-safe high outputs and higher quiescent current (e.g., 2.2 mA IDD1(Q)). Both are specified in the same datasheet Rev. E, with distinctions clearly called out in Table 1 footnotes and the Ordering Guide.