Analog Devices Inc. ADUM1310ARWZ-RL

Overview

ADUM1310ARWZ-RL from Analog Devices is a triple-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller SPI buses and industrial sensor interfaces. It supports bidirectional communication, 3 V/5 V level translation, programmable default output states, and operates up to 10 Mbps with 25 kV/µs common-mode transient immunity. Designed for RS-485 transceiver isolation in motor control systems.

For engineers reviewing the ADUM1310ARWZ-RL datasheet, ADUM1310ARWZ-RL pinout, ADUM1310ARWZ-RL application, or ADUM1310ARWZ-RL equivalent, this page delivers verified electrical specs, SOIC-16W package details, channel configuration logic, safety certifications (UL 2500 Vrms, VDE 0884-17), and real-world isolation use cases - all validated against Rev. L datasheet and Analog Devices official documentation.

Technical Context

The ADUM1310ARWZ-RL implements three independent unidirectional isolation channels using monolithic air-core transformers, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its patented refresh circuit ensures DC-correct output during power-up, power-down, and static input conditions without external components.

It supports asymmetric supply operation (2.7–5.5 V on either side), enabling 3 V/5 V level translation across the barrier. Channel A and B are input-side referenced (VDD1), while Channel C is output-side referenced (VDD2), with dedicated CTRL1/CTRL2 pins for default state control and disable functionality.

Key Specifications

Pinout & Package

ADUM1310ARWZ-RL uses a 16-lead, RoHS-compliant SOIC wide-body package (7.6 mm body width, 10.3 mm length) with 8.1 mm creepage distance, rated for 105°C operation and certified to UL, CSA, IEC/EN 62368-1, and IEC/CSA 60601-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM1310ARWZ-RL, ADUM1311ARWZ-RL offers identical isolation performance but fixed input-only topology, while SI8630BB-B-IS reduces power consumption at the expense of configurable fail-safe logic - making ADUM1310ARWZ-RL optimal for SPI and RS-485 control where direction flexibility and power-up safety are critical.

Availability

ADUM1310ARWZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, medical sensor interfaces, and PLC backplane isolation requiring stable component supply, long-term lifecycle assurance, and certified 2500 Vrms reinforcement.

Supply support for ADUM1310ARWZ-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 with precision technologies.

The ADuM1310/ADuM1311 product line delivers robust, low-power digital isolation for noise-prone environments - specifically engineered for SPI, RS-485, and fieldbus applications demanding safety certification, high CMTI, and mixed-voltage interoperability.

FAQ

What is the maximum data rate supported by ADUM1310ARWZ-RL?

ADUM1310ARWZ-RL supports up to 10 Mbps NRZ data rate in BRWZ-grade configuration, with guaranteed pulse width distortion ≤5 ns and propagation delay 20–50 ns. This rating applies under CL = 15 pF load and CMOS signal levels, as specified in Table 1 of Rev. L datasheet. The ARWZ suffix confirms it is the 10 Mbps speed grade.

Does ADUM1310ARWZ-RL support level translation between 3 V and 5 V domains?

Yes, ADUM1310ARWZ-RL supports true bidirectional level translation: VDD1 and VDD2 each operate independently from 2.7 V to 5.5 V, enabling 3 V MCU-to-5 V peripheral or 5 V MCU-to-3 V sensor interfacing. Input thresholds scale with supply (VIH = 2.0 V at 5 V, 1.6 V at 3 V), and outputs swing rail-to-rail within their respective supply rails.

How does the programmable default output function work on ADUM1310ARWZ-RL?

ADUM1310ARWZ-RL uses CTRL1 (VDD1-side) and CTRL2 (VDD2-side) pins to set Channel C's default output state (high or low) during power loss or disable mode. When DISABLE is high, OUTC assumes the state defined by CTRL1/CTRL2 logic levels - enabling fail-safe behavior in motor control or medical systems where undefined outputs could cause hazardous conditions.

What safety certifications apply to ADUM1310ARWZ-RL?

ADUM1310ARWZ-RL is certified to UL 1577 (2500 Vrms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 Vpeak, IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1 (medical), and IEC/CSA 61010-1 (test equipment). These approvals validate its suitability for reinforced isolation in industrial and safety-critical systems.

Can ADUM1310ARWZ-RL replace optocouplers in existing designs without layout changes?

ADUM1310ARWZ-RL uses a standard 16-lead SOIC wide-body footprint (7.6 mm × 10.3 mm) with 1.27 mm pitch - identical to industry-standard optocoupler packages like HCPL-0723. Pin-for-pin compatibility allows direct replacement in most layouts, though designers must verify VDD1/VDD2 decoupling and ensure no external drivers (required for optocouplers) remain in circuit.