Analog Devices Inc. ADUM341E0BRQZ

Overview

ADUM341E0BRQZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing 3.0 kV rms isolation in a 16-lead QSOP package. It delivers 150 Mbps data rate at 5 V, 6.2 ns typical propagation delay, ±8 kV ESD protection across the barrier, and operates from 2.25 V to 5.5 V with fail-safe low (E0) output configuration - used in isolated SPI interfaces for industrial PLCs and motor drives.

For engineers reviewing the ADUM341E0BRQZ datasheet, ADUM341E0BRQZ pinout, ADUM341E0BRQZ application, or ADUM341E0BRQZ equivalent, key selection criteria include guaranteed 150 Mbps operation at 5 V, 180 kV/µs common-mode transient immunity, QSOP-16 package compatibility, and fail-safe low (E0) output behavior during input-side power loss.

Technical Context

The ADUM341E0BRQZ implements four independent unidirectional isolation channels using monolithic air-core transformers, enabling precise timing control with ≤3.0 ns channel matching and <3 ns pulse width distortion. Its dual-supply architecture supports asymmetric voltage translation (e.g., 2.5 V side to 5 V side) while maintaining full 125°C operating temperature capability.

It integrates undervoltage lockout (UVLO) with 2.2 V enable threshold and 60 µs release time, plus tristate output control via dedicated enable pins (VE1/VE2), allowing dynamic channel gating without affecting adjacent channels' signal integrity.

Key Specifications

Pinout & Package

ADUM341E0BRQZ is housed in a RoHS-compliant 16-lead QSOP (RQ-16) package with 1.27 mm pitch, 10.3 mm × 3.91 mm body size, and exposed pad for thermal enhancement. Pin functions are validated per Analog Devices' datasheet Figure 19 (Pin Configurations and Function Descriptions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM341E0BRQZ, ADUM340E0BRQZ offers higher isolation voltage but incompatible package rating, while SI8640ED-B-IS provides greater isolation voltage and speed margin but lacks E0 fail-safe assurance and automotive qualification - making ADUM341E0BRQZ optimal for space-constrained, safety-critical industrial and automotive designs requiring guaranteed low-state recovery.

Availability

ADUM341E0BRQZ is available at Aetrix Electronics and suitable for industrial PLCs, motor drives, medical diagnostics, and EV battery management systems requiring stable component supply, long-term lifecycle support, and certified isolation performance.

Supply support for ADUM341E0BRQZ 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 industrial and automotive isolation applications demanding low propagation delay, high CMTI, and fail-safe operation - extending iCoupler® technology into cost-sensitive, high-volume markets without compromising safety certification.

FAQ

What is the maximum data rate supported by ADUM341E0BRQZ?

ADUM341E0BRQZ supports a maximum guaranteed data rate of 150 Mbps at 5 V operation, verified under load conditions with CL = 15 pF and CMOS signal levels. At 3.3 V, it maintains 150 Mbps capability; at 2.5 V, the guaranteed maximum drops to 100 Mbps due to reduced slew rate. This makes ADUM341E0BRQZ suitable for high-speed SPI, CAN FD, and isolated PWM applications where timing precision is critical.

Does ADUM341E0BRQZ support level translation between different supply voltages?

Yes, ADUM341E0BRQZ supports bidirectional level translation between 2.25 V and 5.5 V on each side independently - for example, 2.5 V MCU I/O can drive inputs referenced to VDD1, while outputs swing relative to VDD2 at 5 V. This is enabled by CMOS-compatible input thresholds (0.3×VDDx / 0.7×VDDx) and rail-to-rail output drive capability, eliminating external level shifters in mixed-voltage systems.

What does the "E0" suffix indicate in ADUM341E0BRQZ?

The "E0" suffix in ADUM341E0BRQZ specifies the fail-safe output configuration: when the input-side power supply (VDD1) is absent or below UVLO threshold, all four outputs (OA–OD) default to logic low. This behavior is critical in safety-oriented applications such as gate driver interfaces, where unintended high states could cause destructive shoot-through in power stages.

Is ADUM341E0BRQZ qualified for automotive applications?

Yes, ADUM341E0BRQZ is AEC-Q100 qualified for automotive applications (Grade 1, −40°C to +125°C ambient). It meets IEC/CSA 60601-1 for medical, IEC/EN/CSA 62368-1 for general safety, and IEC/CSA 61010-1 for measurement equipment - making it suitable for EV battery management, traction inverter control, and ADAS power domain isolation.

What isolation certifications apply to ADUM341E0BRQZ in its QSOP package?

ADUM341E0BRQZ in the QSOP-16 (RQ-16) package is certified for 3000 V rms isolation for 1 minute per UL 1577 and carries VIORM = 566 V peak per DIN EN IEC 60747-17 (VDE 0884-17). It also complies with IEC/EN/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1 - confirming suitability for reinforced insulation in industrial, medical, and test equipment designs.