Analog Devices Inc. ADUM242D0BRWZ

Overview

ADUM242D0BRWZ 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 ADUM242D0BRWZ datasheet, ADUM242D0BRWZ pinout, ADUM242D0BRWZ application, or ADUM242D0BRWZ equivalent, key selection criteria include its 849 V_peak VIORM rating, fail-safe low output option (D0 suffix), SOIC_W-16 package with 7.8 mm creepage, and compatibility with 125°C ambient operation in safety-critical isolation barriers.

Technical Context

The ADUM242D0BRWZ implements four independent unidirectional isolation channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports asymmetric supply configurations (e.g., 1.8 V side 1 / 3.3 V side 2) and includes integrated undervoltage lockout (UVLO) with 1.6 V turn-on threshold on both sides.

Unlike optocouplers, it guarantees channel matching ≤3.0 ns and pulse width distortion <3 ns, enabling precise timing in synchronized multi-channel interfaces such as isolated gate driver feedback loops and redundant sensor bus isolation.

Key Specifications

Pinout & Package

ADUM242D0BRWZ is housed in a RoHS-compliant 16-lead SOIC_W (wide-body) package (RW-16), measuring 10.3 mm × 10.3 mm × 2.4 mm, with 7.8 mm minimum creepage and clearance for reinforced insulation compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM242E0BRWZ and SI8640ED-B-IS, ADUM242D0BRWZ uniquely combines fail-safe low output, AEC-Q100 qualification, and IEC 60747-17 (VDE 0884-17) reinforced insulation in a single SOIC_W package-making it the only choice for automotive OBCs and Class II medical devices requiring certified 2-MOPP isolation.

Availability

ADUM242D0BRWZ is available at Aetrix Electronics and suitable for industrial motor drives, medical imaging power supplies, automotive onboard chargers, and isolated data acquisition systems requiring stable component supply and long-term lifecycle support.

Supply support for ADUM242D0BRWZ 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 ADuM242x series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, high-speed, reinforced-isolation applications in safety-critical systems including EV power electronics and diagnostic imaging equipment.

FAQ

What is the fail-safe output behavior of ADUM242D0BRWZ?

The ADUM242D0BRWZ features a fail-safe low output configuration: when either VDD1 or VDD2 is absent, or when inputs are disabled, all four outputs (OUTA–OUTD) transition to and hold a logic low state. This behavior is defined by the "D0" suffix and is verified per datasheet Truth Tables and Functional Descriptions. It ensures predictable shutdown in power converter gate driver interfaces and meets IEC 61508 functional safety requirements for safe failure modes.

Does ADUM242D0BRWZ support 1.8 V operation on both sides simultaneously?

Yes, ADUM242D0BRWZ supports 1.8 V operation on both VDD1 and VDD2 rails concurrently. Electrical Characteristics tables confirm full functionality-including 150 Mbps data rate, 15 ns max propagation delay, and 100 kV/µs CMTI-at 1.8 V ±0.1 V across −40°C to +125°C. This enables direct interface with ultra-low-power microcontrollers and sensors without level-shifting circuitry.

What safety certifications apply to ADUM242D0BRWZ?

ADUM242D0BRWZ holds UL 1577 (5000 V_rms), IEC/EN/DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation (849 V_peak VIORM), IEC/CSA 62368-1, IEC/CSA 60601-1 (2-MOPP), and IEC/CSA 61010-1 approvals. Certification documentation is publicly available via Analog Devices' iCoupler Safety Portal and includes test reports for RW-16 package-specific creepage, clearance, and partial discharge performance.

Can ADUM242D0BRWZ replace ADUM240D0BRWZ in an existing design?

No, ADUM242D0BRWZ cannot directly replace ADUM240D0BRWZ because they differ in channel directionality: ADUM240D0BRWZ has all channels unidirectional input-to-output (VDD1→VDD2), while ADUM242D0BRWZ has two channels in each direction (A/B: VDD1→VDD2; C/D: VDD2→VDD1). Pinout and truth table logic are incompatible; PCB redesign and firmware updates would be required.

What is the maximum recommended data rate for reliable operation of ADUM242D0BRWZ?

The ADUM242D0BRWZ guarantees 150 Mbps operation across all supply voltages (1.8 V–5 V) and temperatures (−40°C to +125°C), as specified in Switching Specifications tables. While higher rates may function empirically, 150 Mbps is the only data rate validated for pulse width distortion <3 ns, jitter <500 ps p-p, and propagation delay skew ≤3.0 ns - making it the maximum design-qualified rate for timing-critical applications.