Analog Devices Inc. ADUM141E1WBRWZ

Overview

ADUM141E1WBRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.75 kV_RMS isolation with 150 Mbps guaranteed data rate, 15 ns max propagation delay at 1.8 V operation, and AEC-Q100 qualification for automotive systems. It enables bidirectional signal isolation in SPI interfaces, motor control feedback loops, and isolated power supply monitoring.

For engineers reviewing the ADUM141E1WBRWZ datasheet, ADUM141E1WBRWZ pinout, ADUM141E1WBRWZ application, or ADUM141E1WBRWZ equivalent, this page delivers verified specifications, SOIC_W package layout, fail-safe output behavior, safety certifications (UL, VDE, IEC), and real-world design implications for high-noise industrial and automotive environments.

Technical Context

The ADUM141E1WBRWZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports asymmetric supply operation (1.8 V to 5 V on either side) and includes integrated undervoltage lockout (UVLO) with 1.5 V hysteresis per side.

It features two enable inputs (VE1, VE2) controlling channel groups, configurable fail-safe outputs (high or low during input-side power loss), and robust common-mode transient immunity of 100 kV/µs - validated under ±800 V transients at 1000 V common-mode voltage.

Key Specifications

Pinout & Package

ADUM141E1WBRWZ uses a 16-lead, RoHS-compliant wide-body SOIC (SOIC_W, RW-16) package with 7.8 mm creepage and clearance, optimized for reinforced 3.75 kV_RMS isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM141E1WBRWZ, ADUM140E1WBRWZ offers identical pinout and lower cost at reduced isolation and noise immunity, while SI8641ED-B-IS provides higher voltage rating but lacks automotive qualification and CMTI performance critical for motor drives.

Availability

ADUM141E1WBRWZ is available at Aetrix Electronics and suitable for automotive battery management, industrial motor drives, isolated SPI data acquisition, and medical equipment requiring stable component supply with long-term lifecycle support.

Supply support for ADUM141E1WBRWZ 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 series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-speed signal isolation in safety-critical and noise-intensive applications.

FAQ

What is the isolation voltage rating of ADUM141E1WBRWZ?

ADUM141E1WBRWZ has a rated dielectric insulation voltage of 3.75 kV_RMS for 1 minute, certified per UL 1577, DIN EN IEC 60747-17 (VDE 0884-17), and IEC/EN/CSA 60950-1. This wide-body SOIC package achieves 7.8 mm creepage and clearance, supporting reinforced insulation in high-voltage systems. The ADUM141E1WBRWZ meets requirements for medical (IEC 60601-1) and industrial (IEC 61010-1) safety standards.

Does ADUM141E1WBRWZ support level translation between different supply voltages?

Yes, ADUM141E1WBRWZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 1.8 V to 5 V. For example, it can interface a 1.8 V FPGA I/O bank with a 3.3 V ADC SPI bus while maintaining signal integrity and timing compliance. Input thresholds scale with respective VDD, and output drive strength adapts to VDD2. The ADUM141E1WBRWZ enables flexible voltage domain bridging without external level shifters.

What fail-safe behavior does ADUM141E1WBRWZ exhibit during input power loss?

ADUM141E1WBRWZ provides configurable fail-safe outputs: when VDD1 is absent or below UVLO threshold (1.5 V), outputs OA–OD transition to a pre-determined logic state - high or low - based on internal configuration. This prevents floating or metastable states in downstream logic, critical for safety interlocks in motor drives and battery disconnect circuits. The ADUM141E1WBRWZ ensures deterministic behavior even during brownout conditions.

Is ADUM141E1WBRWZ pin-compatible with earlier ADuM140x devices?

Yes, ADUM141E1WBRWZ is pin-compatible with ADuM1400/ADuM1401/ADuM1402 in the same RW-16 package. All enable, input, output, and power pins align identically. This allows drop-in replacement in existing designs to upgrade isolation rating from 3.0 kV_RMS to 3.75 kV_RMS, improve CMTI from 75 kV/µs to 100 kV/µs, and add AEC-Q100 qualification - without PCB or firmware changes. The ADUM141E1WBRWZ maintains full backward compatibility.

What is the maximum guaranteed data rate for ADUM141E1WBRWZ?

ADUM141E1WBRWZ guarantees a data rate of 150 Mbps across its full operating temperature range (−40°C to +125°C) and supply range (1.8 V to 5 V). This is validated with 15 pF load and CMOS signal levels. While higher rates may function, 150 Mbps is the maximum speed with full timing margin for pulse width distortion (<3 ns), jitter (≤490 ps p-p), and propagation delay skew (<7 ns). The ADUM141E1WBRWZ supports robust high-speed SPI, UART, and digital I/O isolation.