Analog Devices Inc. ADUM1300BRWZ-RL

Overview

ADUM1300BRWZ-RL from Analog Devices is a triple-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller and peripheral domains in industrial and automotive systems. It supports bidirectional communication, 3 V/5 V level translation, operates up to 125°C, and delivers 10 Mbps data rate with ≤3 ns pulse width distortion and ≤15 ns propagation delay skew.

For engineers reviewing the ADUM1300BRWZ-RL datasheet, ADUM1300BRWZ-RL pinout, ADUM1300BRWZ-RL application, or ADUM1300BRWZ-RL equivalent, this page provides verified specifications, SOIC-16W package details, channel configuration, safety certifications (UL 2500 Vrms, VDE 0884-17), and real-world use cases in SPI isolation and RS-485 transceiver interfaces.

Technical Context

The ADUM1300BRWZ-RL implements three independent isolation channels using monolithic air-core transformers, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its architecture supports asymmetric supply operation (2.7–5.5 V per side) and includes a patented refresh circuit ensuring DC correctness during idle or single-supply conditions.

It features output enable functionality, precise timing control (≤3 ns PWD, ≤6 ns tPSK in mixed-voltage mode), and high common-mode transient immunity (>25 kV/µs). The device is rated for 125°C operation and meets IEC/EN/CSA 62368-1, IEC 60601-1, and DIN EN IEC 60747-17 (VDE 0884-17) safety standards with VIORM = 560 Vpeak.

Key Specifications

Pinout & Package

ADUM1300BRWZ-RL is housed in a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance ≥8.3 mm, optimized for reinforced insulation compliance.

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, ADUM1300BRWZ-RL uniquely combines transformer-based DC correctness, 25 kV/µs CMTI, and seamless 3 V/5 V level translation in a standard SOIC-16W footprint-making it optimal for safety-critical industrial and automotive isolation where signal integrity and fault resilience are non-negotiable.

Availability

ADUM1300BRWZ-RL is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and medical equipment requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADUM1300BRWZ-RL 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 ADuM1300/ADuM1301 product line was designed specifically for multichannel galvanic isolation in noise-immune, safety-certified systems-emphasizing timing precision, low power, and interoperability across voltage domains.

FAQ

What is the maximum guaranteed data rate for ADUM1300BRWZ-RL?

The ADUM1300BRWZ-RL is rated for a maximum data rate of 10 Mbps, with guaranteed pulse width distortion ≤3 ns and propagation delay skew ≤15 ns under all operating conditions (2.7–5.5 V supplies, −40°C to +125°C). This specification is validated per Table 1 (BRW grade) in the Rev. M datasheet and applies to both 3 V and 5 V supply configurations.

Does ADUM1300BRWZ-RL support level translation between 3.3 V and 5 V domains?

Yes, ADUM1300BRWZ-RL supports true bidirectional level translation: VDD1 can operate at 2.7–3.6 V while VDD2 runs at 4.5–5.5 V (or vice versa), with input thresholds and output drive levels automatically adapting. Logic high input threshold is 1.6 V (3 V side) or 2.0 V (5 V side), and outputs swing rail-to-rail within their respective supply rails.

What safety certifications does ADUM1300BRWZ-RL hold?

ADUM1300BRWZ-RL is certified to UL 1577 (2500 Vrms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1 - covering industrial, medical, and measurement equipment safety requirements.

How does the refresh feature in ADUM1300BRWZ-RL improve system reliability?

The patented refresh circuit in ADUM1300BRWZ-RL continuously monitors input states and retransmits static logic levels across the isolation barrier, ensuring correct DC output even during prolonged input inactivity or loss of one supply rail. This prevents undetected latch-up or undefined states in safety-critical monitoring paths.

Can ADUM1300BRWZ-RL be used in automotive applications?

Yes - while ADUM1300BRWZ-RL itself is not AEC-Q100 qualified, it belongs to the ADuM1300/ADuM1301 family whose automotive-grade variants (e.g., ADUM1300W) share identical architecture, pinout, and electrical specs. Designers routinely deploy ADUM1300BRWZ-RL in non-safety-critical automotive subsystems (e.g., body control, HVAC) with full thermal and EMC validation.