Analog Devices Inc. ADUM141E1WBRQZ

Overview

ADUM141E1WBRQZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing 3.0 kV_RMS isolation with 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and 1.8 V to 5 V level translation. It serves as a high-speed, noise-immune signal barrier in isolated SPI interfaces and industrial field bus systems.

For engineers reviewing the ADUM141E1WBRQZ datasheet, ADUM141E1WBRQZ pinout, ADUM141E1WBRQZ application, or ADUM141E1WBRQZ equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), fail-safe output configuration, AEC-Q100 qualification, and SOIC-16 narrow-body package compatibility with legacy ADuM1400-series designs.

Technical Context

This device 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 (e.g., 1.8 V on side 1, 5 V on side 2) and includes integrated undervoltage lockout (UVLO) with 1.5 V hysteresis.

The ADUM141E1WBRQZ features two enable inputs (VE1, VE2) for channel grouping control and supports fail-safe high or low output states during power loss. It meets DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 565 V_peak, and achieves tight channel matching (≤3.0 ns codirectional skew) for timing-critical applications.

Key Specifications

Pinout & Package

ADUM141E1WBRQZ uses a 16-lead RoHS-compliant SOIC narrow-body (R-16) package measuring 10.3 mm × 7.5 mm × 2.35 mm, with 4.0 mm minimum creepage/clearance for reinforced insulation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM140E1WBRQZ, the ADUM141E1WBRQZ delivers 50% higher guaranteed data rate while maintaining identical pinout and fail-safe behavior; versus SI8641ED-B-IS, it offers automotive qualification and narrower SOIC packaging but trades 750 V_RMS isolation margin for broader supply flexibility.

Availability

ADUM141E1WBRQZ is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive battery management systems, and isolated SPI data converter interfaces requiring stable component supply across multi-year production cycles.

Supply support for ADUM141E1WBRQZ 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 ADuM141x series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-speed, high-reliability galvanic isolation in safety-critical and electrically noisy environments.

FAQ

What is the maximum guaranteed data rate for ADUM141E1WBRQZ?

The ADUM141E1WBRQZ guarantees a data rate of 150 Mbps across its full operating temperature range (−40°C to +125°C) and supply voltage range (1.8 V to 5 V). This specification is validated per the datasheet's Electrical Characteristics tables and applies to all four channels simultaneously under standard test conditions (CL = 15 pF, CMOS levels). Higher rates may be achievable but are not production-guaranteed.

Does ADUM141E1WBRQZ support level translation between different supply voltages?

Yes, ADUM141E1WBRQZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 1.8 V to 5 V, enabling direct interfacing between 1.8 V microcontrollers and 5 V peripherals. Input thresholds scale with respective VDD (VIH = 0.7×VDDx), and output drive strength adapts to the local VDD2 rail-no external level shifters are required for cross-voltage-domain communication.

What fail-safe output behavior does ADUM141E1WBRQZ exhibit during power loss?

The ADUM141E1WBRQZ is an "E1" variant, meaning its outputs default to a logic high state when either VDD1 or VDD2 is absent or falls below UVLO threshold (1.5 V). This fail-safe high behavior prevents undefined states in critical control paths-for example, holding a gate driver enable high until power is fully established, avoiding unintended power stage activation.

Is ADUM141E1WBRQZ pin-compatible with earlier ADuM1400-series isolators?

Yes, ADUM141E1WBRQZ is explicitly pin-compatible with ADuM1400, ADuM1401, and ADuM1402 in the same SOIC-16 narrow-body (R-16) package. The pin functions, spacing, and thermal pad layout match exactly, allowing drop-in replacement without PCB modification-enabling performance upgrades (e.g., 150 Mbps vs. 100 Mbps) in legacy designs.

What safety certifications apply to ADUM141E1WBRQZ?

ADUM141E1WBRQZ carries UL 1577 (3000 V_RMS/1 min), CSA/IEC 60950-1, IEC/CSA 60601-1 (medical), IEC/CSA 61010-1 (test equipment), CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) certifications. Its 4.0 mm creepage/clearance and CTI >400 V meet reinforced insulation requirements for functional safety applications up to Pollution Degree 2.