Analog Devices Inc. ADUM2201ARWZ-RL

Overview

ADUM2201ARWZ-RL from Analog Devices is a dual-channel digital isolator based on iCoupler® transformer technology, providing 5 kV rms isolation for signal transmission across high-voltage barriers. It supports data rates up to 10 Mbps (NRZ), operates from 3.0 V to 5.5 V on both sides, and delivers precise timing with ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching-used in isolated RS-485 transceivers and battery monitor interfaces.

For engineers reviewing the ADUM2201ARWZ-RL datasheet, ADUM2201ARWZ-RL pinout, ADUM2201ARWZ-RL application, or ADUM2201ARWZ-RL equivalent, key selection criteria include reinforced insulation rating (VIORM = 645 V peak), mixed-voltage level translation (3.3 V/5 V), high common-mode transient immunity (>25 kV/µs), and SOIC wide-body RW-16 package compatibility with industrial and medical safety standards.

Technical Context

The ADUM2201ARWZ-RL implements two independent unidirectional isolation channels using monolithic air-core transformers and integrated CMOS interface circuitry. Its architecture eliminates optocoupler limitations-including uncertain CTR, temperature drift, and aging-by delivering deterministic propagation delay (≤55 ns at 10 Mbps) and guaranteed dc correctness via patented refresh logic during idle or power transitions.

It supports asymmetric supply configurations: VDD1 and VDD2 may operate independently at 3.3 V or 5 V, enabling bidirectional voltage translation across the barrier. Safety compliance includes UL 1577 (5000 V rms), DIN EN IEC 60747-17 (VDE 0884-17), and IEC 60601-1 (2 MOPP), with creepage/clearance of 7.8 mm in the RW-16 package.

Key Specifications

Pinout & Package

The ADUM2201ARWZ-RL uses a 16-lead SOIC wide-body (RW-16) package with 7.8 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 dual-channel digital isolator applications.

Compared with SI8621ED-B-IS and ISO7721DR, the ADUM2201ARWZ-RL provides superior system-level ESD robustness, VDE 0884-17 certification for medical use, and integrated GND pin pairs that simplify PCB grounding-making it optimal for safety-critical, high-noise industrial and healthcare applications.

Availability

ADUM2201ARWZ-RL is available at Aetrix Electronics and suitable for medical diagnostics, industrial motor drives, isolated communications, and battery management systems requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.

Supply support for ADUM2201ARWZ-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 ADuM2200/ADuM2201 product line delivers certified, high-reliability digital isolation for safety-critical systems-designed specifically for medical equipment, EV battery monitors, and industrial PLCs demanding 2-MOPP reinforcement and >25 kV/µs CMTI.

FAQ

What is the maximum data rate supported by the ADUM2201ARWZ-RL?

The ADUM2201ARWZ-RL supports a maximum data rate of 10 Mbps in NRZ format, verified across all operating conditions (3.3 V, 5 V, and mixed-supply modes). This performance is maintained with ≤3 ns pulse width distortion and ≤55 ns propagation delay at 10 Mbps, making it suitable for high-speed isolated UART, SPI, and digital feedback loops. The ADUM2201ARWZ-RL achieves this without external components or timing calibration.

Does the ADUM2201ARWZ-RL support level translation between 3.3 V and 5 V domains?

Yes, the ADUM2201ARWZ-RL supports true bidirectional level translation: VDD1 and VDD2 can operate independently at 3.0–5.5 V, allowing 3.3 V logic on one side to drive 5 V logic on the other. This capability is inherent to its iCoupler architecture and requires no external level-shifting circuitry. The ADUM2201ARWZ-RL maintains full timing specifications-including 10 Mbps data rate and <3 ns PWD-under mixed-voltage operation.

What safety certifications does the ADUM2201ARWZ-RL hold?

The ADUM2201ARWZ-RL is certified to UL 1577 (5000 V rms), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. Its RW-16 package provides 7.8 mm creepage and clearance, and it achieves VIORM = 645 V peak-meeting reinforced insulation requirements for medical and industrial applications. These certifications are production-tested and marked with VDE asterisk (*) on the device body.

How does the ADUM2201ARWZ-RL ensure dc correctness during signal inactivity?

The ADUM2201ARWZ-RL incorporates patented refresh logic that automatically retransmits the last valid logic state across the isolation barrier at ~1.2 Mbps, ensuring dc correctness during static input conditions, power-up, or power-down. This eliminates output glitches or undefined states without requiring external refresh circuitry or protocol-layer handshaking. The ADUM2201ARWZ-RL maintains this behavior across its full temperature range (−40°C to +105°C) and supply range (3.0–5.5 V).

What is the common-mode transient immunity (CMTI) specification for the ADUM2201ARWZ-RL?

The ADUM2201ARWZ-RL guarantees >25 kV/µs common-mode transient immunity (CMTI), tested per IEC 61000-4-x with 1000 V common-mode step and 800 V transient magnitude. This high CMTI enables reliable operation in electrically noisy environments such as motor drives, switch-mode power supplies, and battery disconnect circuits-where fast dV/dt events could otherwise corrupt isolated data. The ADUM2201ARWZ-RL sustains this performance across its entire operating temperature and voltage range.