Analog Devices Inc. ADUM230D1BRWZ

Overview

ADUM230D1BRWZ from Analog Devices is a triple-channel, 5.0 kV_RMS digital isolator based on iCoupler® technology, designed for high-speed signal isolation across reinforced insulation barriers. It delivers 150 Mbps data rate, 13 ns max propagation delay at 5 V, and supports 1.8 V to 5 V level translation between isolated domains - enabling robust SPI and data converter isolation in industrial motor drives and PLC I/O modules.

For engineers reviewing the ADUM230D1BRWZ datasheet, ADUM230D1BRWZ pinout, ADUM230D1BRWZ application, or ADUM230D1BRWZ equivalent, key selection criteria include its 100 kV/µs common-mode transient immunity, fail-safe high output option, SOIC-16 wide-body package with 8.3 mm creepage, and compliance with IEC/EN/CSA 62368-1, IEC 60601-1 (2 MOPP), and DIN EN IEC 60747-17 (VDE 0884-17).

Technical Context

The ADUM230D1BRWZ implements three independent unidirectional CMOS-isolated channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture provides tight channel matching (≤3.0 ns) and low pulse width distortion (≤3 ns), critical for timing-sensitive interfaces like isolated SPI clock and data lines.

It features dual supply operation (VDD1/VDD2 = 1.7–5.5 V), undervoltage lockout (1.5 V/1.6 V thresholds), and configurable fail-safe outputs - with the D1 variant specifying a default-high output state upon input-side power loss or disable assertion, distinguishing it from E1 (fail-low) and D0/E0 variants.

Key Specifications

Pinout & Package

ADUM230D1BRWZ uses a 16-lead SOIC_W (RW-16) wide-body package with 8.3 mm minimum creepage and clearance, optimized for reinforced insulation in industrial environments. Pin numbering follows standard SOIC convention (Pin 1 = top-left corner, notch indicator).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM230D0BRWZ and SI8630BB-B-IS, ADUM230D1BRWZ uniquely combines guaranteed fail-safe high outputs during total input power loss, VDE 0884-17 certification, and 100 kV/µs CMTI - making it the preferred choice for safety-critical industrial and medical isolation where deterministic fault behavior and regulatory compliance are non-negotiable.

Availability

ADUM230D1BRWZ is available at Aetrix Electronics and suitable for industrial motor drives, medical patient monitors, and programmable logic controller (PLC) I/O modules requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADUM230D1BRWZ 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 ADUM230D1BRWZ belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in high-reliability, high-speed, and safety-certified isolation applications - emphasizing timing precision, longevity, and regulatory compliance.

FAQ

What is the fail-safe behavior of ADUM230D1BRWZ when input power is removed?

When VDD1 is removed or falls below UVLO threshold (1.5 V), ADUM230D1BRWZ forces all three outputs (OUTA/OUTB/OUTC) to logic high, regardless of prior input state. This behavior is intrinsic to the D1 variant and ensures predictable system-level fault response - for example, holding a gate driver enable high until controlled shutdown occurs. The ADUM230D1BRWZ specification explicitly defines this as "fail-safe high" in the Ordering Guide and Electrical Characteristics tables.

Does ADUM230D1BRWZ support 1.8 V operation on both sides simultaneously?

Yes, ADUM230D1BRWZ supports 1.8 V operation on both VDD1 and VDD2 supplies, with verified 150 Mbps data rate and 15 ns max propagation delay per the 1.8 V Electrical Characteristics table. Its level translation capability allows 1.8 V logic on one side to drive 3.3 V or 5 V logic on the other - confirmed by VIH/VIL thresholds scaling to 0.7×VDDx and 0.3×VDDx across all supply voltages. This makes ADUM230D1BRWZ suitable for ultra-low-power sensor interfaces paired with higher-voltage signal chains.

What safety certifications apply to ADUM230D1BRWZ in the RW-16 package?

ADUM230D1BRWZ in the RW-16 (SOIC_W) package holds UL 1577 (5000 V_RMS, 1 min), IEC/EN/CSA 62368-1 (reinforced insulation), IEC/CSA 60601-1 (2 MOPP, 237.5 V_RMS), IEC/CSA 61010-1 (Cat. III, 600 V_RMS), CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 849 V_PEAK). These are documented in Tables 11 and 13 of the Rev. C datasheet and apply specifically to the RW-16 package variant denoted by the "BRWZ" suffix.

How does ADUM230D1BRWZ compare to optocouplers in terms of timing stability?

ADUM230D1BRWZ achieves ≤3.0 ns maximum channel matching and <3 ns pulse width distortion - significantly tighter than typical optocouplers (often >50 ns skew and >100 ns PWD). Its iCoupler® transformer-based architecture eliminates LED degradation and temperature-dependent CTR drift, delivering stable propagation delay (±1.5 ps/°C change) over −40°C to +125°C. This enables precise timing in closed-loop control and high-resolution data acquisition where optocouplers introduce unacceptable jitter and aging effects.

Can ADUM230D1BRWZ be used for bidirectional data isolation?

No, ADUM230D1BRWZ provides three unidirectional channels only (INA→OUTA, INB→OUTB, INC→OUTC). It does not support true bidirectional signaling on any single pin. For bidirectional isolation (e.g., I²C), separate forward/reverse channel pairs or dedicated bidirectional isolators like ADUM1250 are required. The ADUM230D1BRWZ Truth Tables and Functional Block Diagram confirm strictly unidirectional signal flow - a design choice that maximizes speed, skew control, and noise immunity for protocols like SPI.