Analog Devices Inc. ADUM231E0BRIZ

Overview

ADUM231E0BRIZ from Analog Devices is a triple-channel, 5.0 kV_RMS digital isolator using iCoupler® technology, designed for high-noise industrial interfaces. It delivers 150 Mbps data rate, 13 ns max propagation delay at 5 V, and supports 1.8 V to 5 V level translation across the isolation barrier. It is used in SPI isolation for isolated ADCs and motor control gate drivers requiring reinforced insulation.

For engineers reviewing the ADUM231E0BRIZ datasheet, ADUM231E0BRIZ pinout, ADUM231E0BRIZ application, or ADUM231E0BRIZ equivalent, this page provides verified specifications, safety-certified isolation parameters, fail-safe output behavior, SOIC-16 package details, and real-world implementation context for industrial fieldbus and medical power supply designs.

Technical Context

The ADUM231E0BRIZ implements three independent unidirectional isolation channels with air-core transformer coupling and integrated CMOS interface circuitry. Its architecture ensures DC correctness without input transitions and supports two fail-safe states (high or low) upon input-side power loss or disable assertion.

It meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, and IEC/EN/CSA 62368-1, with VIORM = 849 V_peak, VISO = 5000 V_RMS/1 min, and common-mode transient immunity of 100 kV/µs - enabling robust operation in high-dV/dt environments like inverters and PLC backplanes.

Key Specifications

Pinout & Package

ADUM231E0BRIZ is housed in a 16-lead, RoHS-compliant wide-body SOIC package (SOIC_W, RW-16 footprint) with 8.3 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 digital isolator applications.

Compared with SI8631BB-B-IS and ISO6731FDWR, ADUM231E0BRIZ uniquely combines 150 Mbps speed, VDE 0884-17 certification, and 100 kV/µs CMTI - making it the only option qualified for next-generation medical power supplies and high-bandwidth industrial servo controllers.

Availability

ADUM231E0BRIZ is available at Aetrix Electronics and suitable for industrial motor drives, medical power supplies, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and certified reinforced isolation.

Supply support for ADUM231E0BRIZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The ADUM231E0BRIZ belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in safety-critical, high-noise, and high-data-rate applications - emphasizing reliability, regulatory compliance, and timing precision.

FAQ

What is the maximum guaranteed data rate for ADUM231E0BRIZ?

The ADUM231E0BRIZ guarantees a maximum data rate of 150 Mbps across all operating conditions (−40°C to +125°C, 1.7–5.5 V). While higher rates may be achievable, 150 Mbps is the highest speed validated for pulse width distortion, jitter, and propagation delay compliance per the datasheet. This makes ADUM231E0BRIZ suitable for high-speed SPI, digital encoder interfaces, and fast serial control links.

Does ADUM231E0BRIZ support fail-safe output behavior, and how is it configured?

Yes, ADUM231E0BRIZ offers configurable fail-safe output states (high or low) when the input-side power supply is lost or the DISABLE1 pin is asserted. The specific fail-safe state is determined by the variant suffix: "E0" denotes fail-safe low, while "E1" denotes fail-safe high. ADUM231E0BRIZ is the fail-safe-low version, ensuring outputs default to logic low during primary-side power failure - critical for safe shutdown in motor control and power supply applications.

Which safety certifications apply to ADUM231E0BRIZ, and what do they cover?

ADUM231E0BRIZ is certified to UL 1577 (5000 V_RMS/1 min), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. These cover reinforced insulation, 849 V_peak working voltage (VIORM), 12,800 V_peak surge withstand, and pollution degree 2 operation - validating its use in medical devices, industrial controls, and test equipment requiring functional safety.

Can ADUM231E0BRIZ operate with different supply voltages on each side, and what is the supported range?

Yes, ADUM231E0BRIZ supports independent supply domains: VDD1 (input side) and VDD2 (output side) each accept 1.7 V to 5.5 V. This enables true level translation - for example, interfacing a 1.8 V FPGA to a 5 V DAC or isolated gate driver without external level shifters. The device maintains full 150 Mbps performance and timing specs across all valid voltage combinations within this range.

What is the common-mode transient immunity (CMTI) specification for ADUM231E0BRIZ, and why does it matter?

ADUM231E0BRIZ specifies 100 kV/µs common-mode transient immunity (CMTI) - the maximum slew rate of voltage transients across the isolation barrier that the device can withstand while maintaining correct output logic levels. This high CMTI is essential in noisy environments like motor drives and switch-mode power supplies, where rapid dV/dt events (e.g., from IGBT switching) could otherwise corrupt isolated signals and cause system malfunction.