Analog Devices Inc. ADUM240D0BRIZ

Overview

ADUM240D0BRIZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 5.0 kV_rms reinforced insulation for high-noise industrial and medical systems. It delivers 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and operates across 1.8 V to 5 V supply rails with level translation. It is used in SPI isolation between microcontrollers and isolated ADCs in motor drive control units.

For engineers reviewing the ADUM240D0BRIZ datasheet, ADUM240D0BRIZ pinout, ADUM240D0BRIZ application, or ADUM240D0BRIZ equivalent, key selection criteria include reinforced insulation rating (5.0 kV_rms), fail-safe low output state, SOIC_W package creepage/clearance compliance, and 100 kV/µs common-mode transient immunity under 1.8–5 V dual-supply operation.

Technical Context

The ADUM240D0BRIZ implements four independent unidirectional isolation channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports fail-safe low output behavior when input power is absent or disabled, distinguishing it from optocouplers and enabling robust system-level fault handling.

It features dual-supply operation (VDD1/VDD2 = 1.8 V–5 V), enabling voltage translation across the isolation barrier, and meets IEC/EN/DIN safety standards including DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation with VIORM = 849 V_peak and UL 1577 certification at 5000 V_rms/1 min.

Key Specifications

Pinout & Package

ADUM240D0BRIZ uses a 16-lead, RoHS-compliant RW-16 wide-body SOIC package (SOIC_W) with 7.8 mm minimum creepage and clearance, qualified for automotive applications and rated for 125°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM2401BRIZ and SI8641ED-B-IS, ADUM240D0BRIZ uniquely combines fail-safe low output, RW-16 SOIC_W packaging with 7.8 mm creepage, and guaranteed 150 Mbps operation - making it optimal for motor control and medical I/O where low-default safety and compact layout are critical.

Availability

ADUM240D0BRIZ is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and electric vehicle battery management systems requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADUM240D0BRIZ 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 ADuM240x series is part of Analog Devices' iCoupler® digital isolator product line, designed specifically for replacing optocouplers in high-reliability, high-noise environments where timing precision, safety certification, and long-term stability are mandatory.

FAQ

What is the maximum guaranteed data rate for ADUM240D0BRIZ?

The ADUM240D0BRIZ guarantees a maximum 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 rating is validated per the datasheet's switching specifications table and applies to all four channels simultaneously under CL = 15 pF loading conditions. Higher rates may be achievable in specific lab conditions, but 150 Mbps is the only production-guaranteed value for ADUM240D0BRIZ.

Does ADUM240D0BRIZ support level translation between different supply voltages?

Yes, ADUM240D0BRIZ supports true bidirectional level translation: VDD1 can operate from 1.8 V to 5 V independently of VDD2, which also ranges from 1.8 V to 5 V. This allows interfacing a 1.8 V FPGA I/O bank to a 3.3 V isolated ADC or a 5 V microcontroller to a 2.5 V sensor interface without external translators. The input thresholds scale with VDD1 (VIH = 0.7×VDD1), and outputs swing rail-to-rail relative to VDD2.

What safety certifications does ADUM240D0BRIZ hold?

ADUM240D0BRIZ holds UL 1577 (5000 V_rms/1 min), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2-MOPP), IEC/CSA 61010-1, CQC GB4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) approvals. Its RW-16 SOIC_W package achieves reinforced insulation with VIORM = 849 V_peak, and it is rated for pollution degree 2 and altitudes ≤2000 m per IEC 60664-1.

What is the fail-safe behavior of ADUM240D0BRIZ?

ADUM240D0BRIZ is configured as a D0 variant, meaning its outputs transition to a predefined logic low state when the input-side supply (VDD1) is removed or when the DISABLE1 pin is asserted high. This fail-safe low behavior prevents undefined states in downstream logic - for example, keeping gate drivers disabled or keeping relay control lines inactive during brownout conditions. It is distinct from E0 variants, which default to high.

Can ADUM240D0BRIZ be used in automotive applications?

Yes, ADUM240D0BRIZ is explicitly qualified for automotive applications per the datasheet's "Automotive Products" section. It operates over the full −40°C to +125°C junction temperature range, meets AEC-Q100 stress test requirements, and supports the voltage and noise immunity demands of automotive subsystems such as battery management, motor control, and domain controllers - provided layout follows iCoupler® PCB guidelines for creepage and grounding.