Analog Devices Inc. ADUM141D0BRWZ-RL

Overview

ADUM141D0BRWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing 3.75 kV RMS withstand voltage 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 industrial SPI isolation and medical data acquisition systems requiring reinforced insulation.

For engineers reviewing the ADUM141D0BRWZ-RL datasheet, ADUM141D0BRWZ-RL pinout, ADUM141D0BRWZ-RL application, or ADUM141D0BRWZ-RL equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), fail-safe output configuration (low), AEC-Q100 qualification, and SOIC_W package creepage (7.8 mm) for high-voltage system compliance.

Technical Context

The ADUM141D0BRWZ-RL implements four independent unidirectional isolation channels with transformer-coupled signal transmission, ensuring dc-correct output states without input transitions. Its architecture includes integrated undervoltage lockout (UVLO) on both sides (1.5 V threshold) and failsafe low output behavior when input power is absent.

It features tight channel matching (≤3.0 ns codirectional skew), low jitter (70 ps rms), and operates across −40°C to +125°C with supply voltages independently configurable from 1.8 V to 5 V per side - enabling robust noise-immune communication between mixed-voltage domains in motor control and patient-connected equipment.

Key Specifications

Pinout & Package

The ADUM141D0BRWZ-RL is housed in a 16-lead, RoHS-compliant, wide-body SOIC (SOIC_W, RW-16) package with 7.8 mm creepage and clearance, optimized for high-voltage isolation integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM141E0BRWZ-RL, ADUM141D0BRWZ-RL provides fail-safe low output critical for safety shutdowns; compared with SI8641ED-B-IS, it adds AEC-Q100 qualification and 33% higher CMTI - making it the only option qualified for ISO 26262 ASIL-D automotive systems and high-noise medical equipment.

Availability

ADUM141D0BRWZ-RL is available at Aetrix Electronics and suitable for industrial motor control, medical patient monitoring, automotive battery management, and high-reliability SPI isolation applications requiring stable component supply and long-term lifecycle support.

Supply support for ADUM141D0BRWZ-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 precision instrumentation, industrial automation, and healthcare markets.

The ADuM141D series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-speed, and safety-certified isolation in medical, automotive, and industrial systems demanding reinforced insulation and long-term stability.

FAQ

What is the isolation voltage rating of the ADUM141D0BRWZ-RL?

The ADUM141D0BRWZ-RL has a rated dielectric insulation voltage of 3.75 kV RMS for 1 minute, certified per UL 1577 and DIN EN IEC 60747-17 (VDE 0884-17). This rating applies to its wide-body SOIC_W package, which provides 7.8 mm creepage and clearance - meeting reinforced insulation requirements for IEC 60601-1 medical and IEC 61010-1 industrial equipment.

Does the ADUM141D0BRWZ-RL support level translation between different supply voltages?

Yes, the ADUM141D0BRWZ-RL supports true 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. Input thresholds scale with respective VDD (VIH = 0.7×VDDx), and outputs swing rail-to-rail relative to VDD2 - enabling direct interface between 1.8 V microcontrollers and 5 V peripherals without external level shifters.

What is the fail-safe output behavior of the ADUM141D0BRWZ-RL?

The ADUM141D0BRWZ-RL is configured as a D0 variant, meaning its outputs transition to a logic low state when the input-side power (VDD1) is removed or when DISABLE1 is asserted high. This fail-safe low behavior is critical in safety-critical applications such as gate driver disable or emergency stop circuits, where a known inactive state must be guaranteed during fault conditions.

Is the ADUM141D0BRWZ-RL qualified for automotive applications?

Yes, the ADUM141D0BRWZ-RL is AEC-Q100 qualified for Grade 1 (−40°C to +125°C), making it suitable for automotive applications including battery management systems, on-board chargers, and traction inverter controls. Its 100 kV/µs common-mode transient immunity and reinforced 3.75 kV isolation support functional safety requirements per ISO 26262 ASIL-D architectures.

How does the ADUM141D0BRWZ-RL compare to optocouplers in terms of reliability and speed?

The ADUM141D0BRWZ-RL uses iCoupler® monolithic air-core transformers instead of LEDs and photodiodes, eliminating LED aging, current transfer ratio (CTR) degradation, and temperature-dependent timing drift. It achieves 150 Mbps data rate and 15 ns max propagation delay - exceeding typical optocoupler limits (≤10 Mbps, >50 ns delay) - while guaranteeing >50-year insulation lifetime per IEC 60747-17 accelerated testing.