Analog Devices Inc. ADUM341E1WBRQZ

Overview

ADUM341E1WBRQZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation, delivering 3.0 kV_rms withstand voltage in a 16-lead QSOP package. It supports 150 Mbps data rate at 5 V, features 6.2 ns typical propagation delay, ±8 kV IEC 61000-4-2 ESD protection across the barrier, and operates from −40°C to +125°C - ideal for isolated SPI, CAN FD, and PWM signal transmission in industrial motor drives.

For engineers reviewing the ADUM341E1WBRQZ datasheet, ADUM341E1WBRQZ pinout, ADUM341E1WBRQZ application, or ADUM341E1WBRQZ equivalent, this page delivers verified specifications, fail-safe E1 output behavior, QSOP-16 terminal mapping, regulatory compliance (IEC 62368-1, UL 1577, VDE 0884-17), and real-world isolation use cases with timing-critical design implications.

Technical Context

The ADUM341E1WBRQZ implements four independent unidirectional CMOS-isolated channels using monolithic air-core transformers, enabling precise channel matching (≤3.0 ns codirectional skew) and low pulse width distortion (≤3 ns). Its fail-safe E1 configuration forces outputs high when input-side power is absent, supporting safe system startup and fault recovery.

It integrates undervoltage lockout (UVLO) on both sides (2.0–2.2 V enable threshold), supports 2.25–5.5 V supply translation across the barrier, and achieves 180 kV/µs common-mode transient immunity - critical for noisy industrial environments with fast-switching power electronics.

Key Specifications

Pinout & Package

ADUM341E1WBRQZ is housed in a 16-lead QSOP (RQ-16) package with 1.27 mm pitch, RoHS-compliant, and rated for VIORM = 566 V_peak. The package provides creepage/clearance suitable for 3.0 kV_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 ADUM341E1WBRQZ, ADUM340E1WBRQZ offers higher isolation voltage but no QSOP-16 variant, while SI8641ED-B-IS provides higher VIORM but lacks intrinsic fail-safe behavior - making ADUM341E1WBRQZ optimal for safety-critical, power-loss-resilient industrial designs.

Availability

ADUM341E1WBRQZ is available at Aetrix Electronics and suitable for industrial motor drives, PLC I/O modules, and battery management systems requiring stable component supply, long-term lifecycle assurance, and certified 3.0 kV_rms isolation performance.

Supply support for ADUM341E1WBRQZ 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 ADuM34xE family was designed specifically for cost-sensitive, high-reliability industrial isolation applications demanding AEC-Q100 qualification, extended temperature operation, and robust noise immunity - with ADUM341E1WBRQZ optimized for QSOP-packaged multichannel signal integrity.

FAQ

What is the isolation voltage rating of ADUM341E1WBRQZ?

ADUM341E1WBRQZ is rated for 3.0 kV_rms isolation withstand voltage for 1 minute in its QSOP-16 package (RQ-16), with a peak working voltage (VIORM) of 566 V. This rating complies with DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577 standards, and is validated for reinforced insulation in industrial equipment per IEC 62368-1.

Does ADUM341E1WBRQZ support level translation between different supply voltages?

Yes, ADUM341E1WBRQZ supports bidirectional level translation between 2.25 V and 5.5 V on each side independently. For example, it can interface a 3.3 V microcontroller (VDD1) with a 5 V analog front-end (VDD2), maintaining valid logic thresholds (VIH = 0.7 × VDDx, VIL = 0.3 × VDDx) and output drive strength across the full range - all within a single ADUM341E1WBRQZ device.

What does the "E1" suffix indicate in ADUM341E1WBRQZ?

"E1" denotes the fail-safe output configuration: when input-side power (VDD1) is removed or falls below UVLO threshold, all four outputs (OUTA–OUTD) transition to and hold a logic high state. This behavior is critical in safety-critical paths such as gate driver enables, where an undefined or low state could cause hazardous short-circuit conditions. ADUM341E1WBRQZ guarantees this behavior per datasheet specification.

Can ADUM341E1WBRQZ operate at 2.5 V supplies on both sides?

Yes, ADUM341E1WBRQZ operates down to 2.25 V on either side. At 2.5 V, it delivers guaranteed 100 Mbps data rate, 7.2 ns maximum propagation delay, and maintains full functionality including E1 fail-safe behavior, UVLO (2.0–2.2 V enable threshold), and ±8 kV ESD protection. Quiescent current rises slightly versus 5 V operation, but dynamic consumption remains scalable with data throughput.

Is ADUM341E1WBRQZ qualified for automotive applications?

Yes, the ADuM341E family is AEC-Q100 qualified for automotive applications (Grade 1: −40°C to +125°C ambient). ADUM341E1WBRQZ shares this qualification and is approved for use in automotive subsystems such as battery disconnect units, onboard chargers, and body control modules where reinforced isolation and fail-safe behavior are required - though final system-level compliance depends on board layout and end-equipment testing.