Analog Devices Inc. ADUM141E1BRWZ-RL

Overview

ADUM141E1BRWZ-RL from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.75 kV_RMS reinforced isolation in a wide-body SOIC-16 package. It delivers 150 Mbps guaranteed data rate, 15 ns max propagation delay at 1.8 V operation, and supports 1.8 V to 5 V level translation across the isolation barrier. It is used in SPI isolation for industrial PLCs where high CMTI (>100 kV/µs) and AEC-Q100 qualification are required.

For engineers reviewing the ADUM141E1BRWZ-RL datasheet, ADUM141E1BRWZ-RL pinout, ADUM141E1BRWZ-RL application, or ADUM141E1BRWZ-RL equivalent, key selection criteria include reinforced isolation rating (3.75 kV_RMS), fail-safe high output configuration, wide-body creepage/clearance (7.8 mm), and compatibility with low-voltage microcontrollers (1.8 V side).

Technical Context

The ADUM141E1BRWZ-RL implements four independent unidirectional CMOS-isolated 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 two enable inputs (VE1/VE2) supporting configurable channel disable. The device meets DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation and supports fail-safe high output state when input power is absent.

Key Specifications

Pinout & Package

RW-16 wide-body SOIC-16 package (10.3 mm × 7.5 mm, 2.35 mm height), RoHS compliant, with creepage and clearance of 7.8 mm between input and output sides.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM141E1BRWZ-RL, ADUM140E1BRWZ-RL offers lower isolation rating but identical functionality and footprint, while SI8641ED-B-IS provides comparable isolation and speed but lacks fail-safe high and automotive qualification - making ADUM141E1BRWZ-RL uniquely suited for safety-critical 125°C environments requiring deterministic fault response.

Availability

ADUM141E1BRWZ-RL is available at Aetrix Electronics and suitable for industrial PLCs, medical patient monitors, and automotive battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADUM141E1BRWZ-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 ADuM141E family is part of Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-CMTI isolation in safety-critical systems requiring regulatory compliance and extended temperature operation.

FAQ

What is the isolation voltage rating of ADUM141E1BRWZ-RL?

ADUM141E1BRWZ-RL has a rated dielectric insulation voltage of 3.75 kV_RMS for 1 minute, verified per UL 1577 and DIN EN IEC 60747-17 (VDE 0884-17). This corresponds to the RW-16 wide-body SOIC package, which provides 7.8 mm creepage and clearance - meeting reinforced insulation requirements for IEC 60601-1 and IEC 60950-1.

Does ADUM141E1BRWZ-RL support 1.8 V operation on both sides?

Yes, ADUM141E1BRWZ-RL operates with supply voltages from 1.8 V to 5 V independently on each side (VDD1 and VDD2). At 1.8 V, it guarantees 150 Mbps data rate and 15 ns maximum propagation delay, enabling direct interfacing with ultra-low-power microcontrollers and FPGAs without level-shifting circuitry.

What fail-safe behavior does ADUM141E1BRWZ-RL exhibit?

ADUM141E1BRWZ-RL is configured as a fail-safe high device: when VDD1 is unpowered or the DISABLE1 input is asserted, all four outputs transition to and hold a logic-high state. This behavior is hardwired and does not require external components, ensuring predictable system-level fault response in safety-critical applications.

Is ADUM141E1BRWZ-RL pin-compatible with earlier ADuM140x series?

Yes, ADUM141E1BRWZ-RL is pin-compatible with ADuM1400/ADuM1401/ADuM1402 in the same RW-16 package. However, it differs in internal enable logic and fail-safe configuration - design review is required to confirm functional equivalence in existing layouts before drop-in replacement.

What safety certifications apply to ADUM141E1BRWZ-RL?

ADUM141E1BRWZ-RL is certified to UL 1577 (3000 V rms), 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). These approvals validate its use in medical, industrial, and test equipment requiring reinforced isolation and double insulation.