Analog Devices Inc. ADUM2201BRWZ-RL

Overview

ADUM2201BRWZ-RL from Analog Devices is a dual-channel digital isolator based on iCoupler® transformer technology, providing reinforced 5 kV_rms isolation, 10 Mbps data rate, and precise timing (≤3 ns pulse width distortion). It operates across 3.0–5.5 V on both sides, supports 3.3 V/5 V level translation, and is qualified for industrial and automotive applications up to +105°C.

For engineers reviewing the ADUM2201BRWZ-RL datasheet, ADUM2201BRWZ-RL pinout, ADUM2201BRWZ-RL application, or ADUM2201BRWZ-RL equivalent, this device delivers high common-mode transient immunity (>25 kV/µs), low power consumption (1.1–4.2 mA/channel), and safety-certified isolation for RS-485, medical equipment, and battery monitoring systems.

Technical Context

The ADUM2201BRWZ-RL implements two 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 correctness during idle periods and power transitions.

It supports mixed-voltage operation (e.g., 5 V on Side 1 / 3.3 V on Side 2), maintains channel-to-channel matching ≤3 ns, and achieves propagation delay skew ≤22 ns between units - critical for synchronous serial interfaces and isolated feedback loops.

Key Specifications

Pinout & Package

ADUM2201BRWZ-RL uses a 16-lead SOIC wide-body package (RW-16) with 7.8 mm creepage and clearance, 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 SI8621ED-B-IS and ISO7721DWR, ADUM2201BRWZ-RL offers superior long-term reliability via transformer-based isolation, certified 645 V_peak working voltage for high-voltage BMS, and guaranteed DC correctness - making it optimal for safety-critical automotive and medical designs where field lifetime and regulatory traceability are mandatory.

Availability

ADUM2201BRWZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, medical diagnostic equipment, battery management systems, and isolated communication interfaces requiring stable component supply and long-term lifecycle support.

Supply support for ADUM2201BRWZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets since 1965.

The ADuM2200/ADuM2201 product line delivers certified galvanic isolation for safety-critical systems, emphasizing reliability, regulatory compliance, and ease of integration in high-noise, high-voltage environments.

FAQ

What is the isolation rating and safety certification status of ADUM2201BRWZ-RL?

ADUM2201BRWZ-RL provides 5000 V_rms isolation for 1 minute per UL 1577 and reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17), with VIORM = 645 V_peak. It holds certifications including UL, CSA, CQC, and VDE for IEC 62368-1, IEC 60601-1, and IEC 61010-1 - all documented in the official Analog Devices datasheet Rev. H.

How does ADUM2201BRWZ-RL differ from ADUM2200BRWZ-RL in pin configuration and signal direction?

ADUM2201BRWZ-RL has inputs on pins 5 (VIB) and 13 (VIA), with outputs on pins 4 (VOA) and 12 (VOB) - making both channels unidirectional output-from-input. In contrast, ADUM2200BRWZ-RL configures pins 4 and 5 as inputs (VIA/VIB) and pins 12 and 13 as outputs (VOA/VOB), supporting identical signal flow directionality. The pinout difference is fixed per part number and cannot be reconfigured.

Does ADUM2201BRWZ-RL support bidirectional communication on a single channel?

No. ADUM2201BRWZ-RL implements two strictly unidirectional channels: Channel A transmits from VIA (input) to VOA (output), and Channel B transmits from VIB (input) to VOB (output). Bidirectional protocols like I²C require external logic or a different isolator (e.g., ADUM1250) - ADUM2201BRWZ-RL itself does not support reverse-direction signaling on either channel.

What is the maximum recommended data rate and associated timing specification for ADUM2201BRWZ-RL?

ADUM2201BRWZ-RL supports up to 10 Mbps (NRZ) with guaranteed timing: propagation delay ≤60 ns (3.3 V operation), pulse width distortion ≤3 ns, and channel-to-channel matching ≤3 ns. These values are specified for B-grade devices at 25°C and hold across the full −40°C to +105°C operating range per datasheet Table 4 and Table 5.

Can ADUM2201BRWZ-RL operate with different supply voltages on each side, and what are the limits?

Yes. ADUM2201BRWZ-RL supports mixed-supply operation: VDD1 and VDD2 may independently range from 3.0 V to 5.5 V. Valid configurations include 5 V/3.3 V, 3.3 V/5 V, 3.3 V/3.3 V, or 5 V/5 V - enabling level translation without external components. This is verified in Tables 7–10 of the datasheet Rev. H.