Analog Devices Inc. ADUM241D1BRIZ

Overview

ADUM241D1BRIZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 5.0 kV_rms reinforced insulation, 150 Mbps guaranteed data rate, and 13 ns maximum propagation delay at 5 V operation. It supports 1.8 V to 5 V level translation across the isolation barrier and operates reliably up to 125°C in industrial and automotive systems requiring high-noise immunity.

For engineers reviewing the ADUM241D1BRIZ datasheet, ADUM241D1BRIZ pinout, ADUM241D1BRIZ application, or ADUM241D1BRIZ equivalent, this device delivers deterministic timing (≤3 ns channel matching), fail-safe output options, and compliance with UL, VDE, IEC/CSA 62368-1, 60601-1, and 61010-1 safety standards for medical, industrial, and test equipment isolation.

Technical Context

The ADUM241D1BRIZ implements four independent unidirectional isolation channels using monolithic air-core transformer coupling, ensuring dc-correct output states without input transitions. Its architecture enables precise timing control with ≤3.0 ns codirectional channel matching and <3 ns pulse width distortion at 5 V.

It features dual supply domains (VDD1/VDD2), programmable fail-safe output states (high or low), and integrated undervoltage lockout (UVLO) with 1.6 V threshold. The device meets DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation at 849 V_peak and achieves 100 kV/µs common-mode transient immunity under full-rated voltage stress.

Key Specifications

Pinout & Package

ADUM241D1BRIZ is housed in a 16-lead RoHS-compliant SOIC_W (wide-body) package with creepage/clearance ≥7.8 mm and reinforced insulation barrier between pins 1–8 (side 1) and pins 9–16 (side 2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM241E1BRIZ, ADUM241D1BRIZ provides identical timing and safety specs but slightly higher quiescent current at 1.8 V; versus SI8641ED-B-IS, it delivers superior noise immunity and certified medical-grade insulation-making it the only option for IEC 60601-1 2 MOPP designs.

Availability

ADUM241D1BRIZ is available at Aetrix Electronics and suitable for industrial motor drives, medical diagnostic equipment, PLC I/O modules, and automotive battery management systems requiring stable component supply with long lifecycle assurance.

Supply support for ADUM241D1BRIZ 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 ADUM241D1BRIZ belongs to the ADuM24xxD/E family of iCoupler® digital isolators engineered for high-reliability, high-speed, and safety-certified signal isolation in harsh electromagnetic environments.

FAQ

What safety certifications does ADUM241D1BRIZ hold?

ADUM241D1BRIZ is certified to UL 1577 (5000 V_rms), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation (849 V_peak), IEC/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. These approvals validate its use in medical, industrial, and test equipment requiring regulatory compliance.

Does ADUM241D1BRIZ support bidirectional communication?

No, ADUM241D1BRIZ implements four unidirectional channels (INA→OUTA, INB→OUTB, etc.). For bidirectional SPI isolation, two ADUM241D1BRIZ devices or a dedicated bidirectional isolator like ADUM2441 would be required. The device's truth table confirms fixed input-to-output directionality.

What is the minimum recommended creepage distance for ADUM241D1BRIZ PCB layout?

The ADUM241D1BRIZ SOIC_W package requires ≥7.8 mm creepage between side 1 (pins 1–8) and side 2 (pins 9–16). This is enforced by internal mold compound and validated per IEC 62368-1. PCB traces must maintain this spacing; solder mask is not a valid insulator for creepage compliance.

Can ADUM241D1BRIZ operate with different supply voltages on each side?

Yes, ADUM241D1BRIZ supports independent VDD1 and VDD2 supplies ranging from 1.8 V to 5 V. This enables level translation-for example, interfacing a 1.8 V FPGA I/O bank to a 3.3 V sensor interface-without external level-shifting circuitry.

How does the fail-safe output function work on ADUM241D1BRIZ?

When VDD1 is unpowered or inputs are disabled, ADUM241D1BRIZ forces all outputs to a predefined logic state (high or low) based on its specific variant. The D1 suffix indicates a defined fail-safe state-confirmed in the ordering guide as low-side default-ensuring predictable behavior during power-up/down sequences.