Analog Devices Inc. ADUM341E1BRWZ-RL

Overview

ADUM341E1BRWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing 5.7 kV_rms reinforced insulation in a 16-lead SOIC (RW-16) package. It delivers 150 Mbps data rate at 5 V operation, 6.2 ns typical propagation delay, and operates across 2.25 V to 5.5 V supply rails with fail-safe high (E1) output default. It is widely deployed in SPI isolation for industrial data acquisition systems.

For engineers reviewing the ADUM341E1BRWZ-RL datasheet, ADUM341E1BRWZ-RL pinout, ADUM341E1BRWZ-RL application, or ADUM341E1BRWZ-RL equivalent, key selection criteria include its 180 kV/µs common-mode transient immunity, AEC-Q100 qualification for automotive use, 125°C maximum operating temperature, and compliance with DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577.

Technical Context

The ADUM341E1BRWZ-RL implements four independent unidirectional isolation channels using monolithic air-core transformers with integrated CMOS interface circuitry on each side. Its architecture supports asymmetric voltage translation (e.g., 3.3 V side to 5 V side) and features undervoltage lockout (UVLO) with 2.2 V enable threshold and 0.2 V hysteresis on both VDD1 and VDD2 rails.

It uses a fail-safe E1 configuration where outputs default to logic high when input-side power is absent, and includes tristate output control via dedicated enable pins (VE1/VE2). Channel matching is specified at ≤3.0 ns codirectional skew, supporting precise timing-critical interfaces like isolated PWM and encoder feedback.

Key Specifications

Pinout & Package

ADUM341E1BRWZ-RL is housed in a 16-lead, RoHS-compliant wide-body SOIC package (RW-16), measuring 10.3 mm × 7.5 mm × 2.36 mm, with creepage/clearance ≥8.3 mm and reinforced insulation suitable for 300 V_rms working voltage applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM341E1BRWZ-RL, ADUM340E1BRWZ-RL offers bidirectional flexibility at identical isolation strength, while SI8641ED-B-IS trades automotive qualification and CMTI performance for lower unit cost in less demanding environments.

Availability

ADUM341E1BRWZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and isolated power supply design requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for ADUM341E1BRWZ-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, headquartered in Wilmington, MA.

The ADuM34xxE family was designed specifically for high-reliability, high-speed digital isolation in safety-critical industrial and automotive systems, emphasizing low jitter, high CMTI, and regulatory compliance out-of-the-box.

FAQ

What is the isolation voltage rating of ADUM341E1BRWZ-RL?

ADUM341E1BRWZ-RL provides 5.7 kV_rms isolation for 1 minute per UL 1577 and DIN EN IEC 60747-17 (VDE 0884-17), with a peak working voltage (VIORM) of 1173 V_peak in its SOIC RW-16 package. This rating is validated for reinforced insulation in end-equipment meeting IEC/EN/CSA 62368-1 and 61010-1 standards.

Does ADUM341E1BRWZ-RL support level translation between different supply voltages?

Yes, ADUM341E1BRWZ-RL supports true bidirectional level translation: VDD1 and VDD2 can each operate independently from 2.25 V to 5.5 V, enabling interfaces such as 3.3 V microcontrollers to 5 V peripherals or 2.5 V sensors to 3.3 V logic - all while maintaining full isolation and timing specifications.

What fail-safe behavior does ADUM341E1BRWZ-RL exhibit during input power loss?

ADUM341E1BRWZ-RL is an E1 variant, meaning its outputs (OA–OD) default to logic high when VDD1 is unpowered or below UVLO threshold (2.2 V). This ensures predictable, safe states in motor control or power supply enable circuits during brownout conditions.

Is ADUM341E1BRWZ-RL qualified for automotive applications?

Yes, ADUM341E1BRWZ-RL is AEC-Q100 qualified (Grade 1, −40°C to +125°C) and certified to IEC/CSA 60601-1 and IEC/CSA 61010-1, making it suitable for automotive powertrain, battery management, and charging systems where functional safety and high-temperature reliability are required.

How does the common-mode transient immunity (CMTI) of ADUM341E1BRWZ-RL impact system design?

With 180 kV/µs typical CMTI, ADUM341E1BRWZ-RL prevents data corruption in high-dV/dt environments like motor drives and inverters. This eliminates the need for additional RC snubbers or layout guard traces, simplifying PCB design and improving robustness in industrial and automotive applications.