Analog Devices Inc. ADUM142E0BRWZ-RL

Overview

ADUM142E0BRWZ-RL from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 3.75 kV_RMS galvanic isolation for high-noise industrial and automotive systems. It supports 150 Mbps data rate, 15 ns max propagation delay at 1.8 V, and operates across 1.8 V to 5 V supply rails with fail-safe low output configuration. It is used in SPI isolation for motor control inverters requiring robust noise immunity.

For engineers reviewing the ADUM142E0BRWZ-RL datasheet, ADUM142E0BRWZ-RL pinout, ADUM142E0BRWZ-RL application, or ADUM142E0BRWZ-RL equivalent, key selection criteria include reinforced isolation rating (3.75 kV_RMS), common-mode transient immunity (100 kV/µs), AEC-Q100 qualification, SOIC_W package creepage (7.8 mm), and fail-safe low output state during input power loss.

Technical Context

The ADUM142E0BRWZ-RL implements four independent unidirectional isolation channels using monolithic air-core transformers, enabling dc-correct signal transmission without input transitions. Its architecture ensures tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V).

It features dual supply domains (VDD1/VDD2), undervoltage lockout (1.5 V–1.6 V thresholds), and integrated enable/disable logic. The E0 variant provides fail-safe low outputs when inputs are disabled or unpowered - distinct from E1's fail-safe high behavior and D-series non-fail-safe operation.

Key Specifications

Pinout & Package

ADUM142E0BRWZ-RL uses a 16-lead, RoHS-compliant SOIC_W (RW-16) package with 7.8 mm creepage and clearance, optimized for high-voltage isolation in space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM142E1BRWZ-RL, the ADUM142E0BRWZ-RL provides fail-safe low output essential for de-energizing actuators on fault, while SI8642ED-B-IS offers higher isolation rating but lacks automotive qualification and has different CMTI performance (85 kV/µs vs. 100 kV/µs).

Availability

ADUM142E0BRWZ-RL is available at Aetrix Electronics and suitable for motor control inverters, battery management systems, industrial PLC modules, and medical imaging equipment requiring stable component supply and long-term lifecycle support.

Supply support for ADUM142E0BRWZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The ADuM142E series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-speed galvanic isolation in safety-critical and noise-intensive applications such as electric vehicle power systems and precision medical instrumentation.

FAQ

What is the isolation voltage rating of the ADUM142E0BRWZ-RL and which safety standards does it meet?

The ADUM142E0BRWZ-RL has a rated dielectric insulation voltage of 3.75 kV_RMS for 1 minute, certified to UL 1577, IEC/EN/CSA 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17). Its SOIC_W package provides 7.8 mm creepage and clearance, satisfying reinforced insulation requirements for 400 V_RMS working voltage.

Does the ADUM142E0BRWZ-RL support level translation between different supply voltages?

Yes, the ADUM142E0BRWZ-RL supports independent 1.8 V to 5 V supplies on both VDD1 and VDD2 sides, enabling bidirectional level translation across the isolation barrier. This allows interfacing a 1.8 V FPGA I/O bank with a 3.3 V ADC or 5 V microcontroller without external level shifters.

What is the fail-safe behavior of the ADUM142E0BRWZ-RL and how is it triggered?

The ADUM142E0BRWZ-RL is an E0 variant, meaning its outputs transition to logic low when VDD1 is absent, DISABLE1 is asserted high, or input power is lost. This fail-safe low state prevents undefined outputs in safety-critical paths, such as disabling IGBT gates during MCU reset or brownout conditions.

Is the ADUM142E0BRWZ-RL qualified for automotive applications?

Yes, the ADUM142E0BRWZ-RL is AEC-Q100 qualified Grade 1 (−40°C to +125°C), with full temperature cycling, HTOL, and ESD testing performed per automotive reliability standards. It is approved for use in battery management systems, traction inverter control, and onboard chargers in EV/HEV platforms.

How does the ADUM142E0BRWZ-RL compare to optocouplers in terms of timing performance and lifetime?

The ADUM142E0BRWZ-RL delivers 15 ns max propagation delay (vs. 50–100 ns for standard optocouplers), <3 ns pulse width distortion, and 70 ps rms jitter - enabling precise high-speed digital signaling. Unlike optocouplers, its iCoupler® technology has no LED wear-out mechanism, guaranteeing >50-year operational lifetime at 125°C per JEDEC JESD22-A108F.