Analog Devices Inc. ADUM240D1BRWZ

Overview

ADUM240D1BRWZ 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 capability.

For engineers reviewing the ADUM240D1BRWZ datasheet, ADUM240D1BRWZ pinout, ADUM240D1BRWZ application, or ADUM240D1BRWZ equivalent, this page provides verified specifications, fail-safe output behavior, SOIC_W package details, regulatory compliance (UL, VDE, IEC 60601-1), and real-world isolation use cases in SPI interfaces and field bus systems.

Technical Context

The ADUM240D1BRWZ implements four independent unidirectional channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports fail-safe high/low output options and includes integrated undervoltage lockout (UVLO) with 1.6 V threshold on both sides.

It achieves tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), enabling precise timing in high-speed serial protocols. Common-mode transient immunity is rated at 100 kV/µs, validated under 1000 V common-mode step with 800 V transient magnitude.

Key Specifications

Pinout & Package

ADUM240D1BRWZ uses a 16-lead RoHS-compliant SOIC_W (RW-16) wide-body package with 7.8 mm creepage and clearance, optimized for reinforced insulation in high-voltage applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM2401BRWZ, ADUM240D1BRWZ offers user-selectable fail-safe polarity; compared with SI8641ED-IS, it provides certified 2-MOPP medical isolation and superior noise immunity in radiated EMI environments.

Availability

ADUM240D1BRWZ is available at Aetrix Electronics and suitable for industrial motor control, medical diagnostics, SPI data converter interfaces, and field bus node designs requiring stable component supply and long-term lifecycle support.

Supply support for ADUM240D1BRWZ 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 ADUM240D1BRWZ belongs to the iCoupler® digital isolator product line, engineered specifically for high-reliability galvanic isolation in safety-critical systems demanding regulatory compliance, low latency, and robust noise immunity.

FAQ

What is the maximum guaranteed data rate for ADUM240D1BRWZ?

The ADUM240D1BRWZ 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 specification is validated per the datasheet's switching characteristics tables and applies to all four channels simultaneously under standard load conditions (CL = 15 pF, CMOS levels). Higher rates may be achievable but are not production-guaranteed.

Does ADUM240D1BRWZ support level translation between different supply voltages?

Yes, ADUM240D1BRWZ supports bidirectional level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains. Its input thresholds scale with VDDx (VIH = 0.7 × VDDx, VIL = 0.3 × VDDx), and outputs drive full rail-to-rail CMOS levels on each side. This allows direct interfacing between a 1.8 V FPGA and a 5 V microcontroller without external level shifters - a key feature confirmed in the General Description and Electrical Characteristics sections of the ADUM240D1BRWZ datasheet.

What safety certifications does ADUM240D1BRWZ hold?

ADUM240D1BRWZ holds UL 1577 (5000 V_rms), DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1 certifications. These are explicitly listed in Tables 12 and 13 of the datasheet for the RW-16 SOIC_W package. The device is rated for reinforced insulation with VIORM = 849 V_peak, making it suitable for Class I medical equipment and industrial safety systems.

How does the fail-safe output function work on ADUM240D1BRWZ?

The ADUM240D1BRWZ provides configurable fail-safe output behavior: when VDD1 or VDD2 is absent or falls below UVLO threshold (1.5 V), outputs transition to a predetermined high or low state based on internal configuration. This behavior is fixed per variant - the "D1" suffix denotes a specific fail-safe polarity option (distinct from E1/E0 variants). Unlike optocouplers, no refresh signal is needed to maintain the fail-safe state, ensuring deterministic behavior during brownout or power-up sequences.

What is the package type and creepage distance of ADUM240D1BRWZ?

ADUM240D1BRWZ uses the RW-16 wide-body SOIC package (SOIC_W), with minimum external creepage and clearance distances of 7.8 mm between input and output pins. This meets IEC 62368-1 and IEC 60601-1 requirements for pollution degree 2 and altitudes ≤2000 m. The package also features >400 V CTI rating and Material Group II classification, as specified in Table 9 of the ADUM240D1BRWZ datasheet.