Analog Devices Inc. ADUM220N0BRWZ

Overview

ADUM220N0BRWZ from Analog Devices is a dual-channel, 5.0 kV_rms digital isolator in a 16-lead SOIC_W (RW-16) package, featuring 150 Mbps data rate, 13 ns max propagation delay at 5 V, and fail-safe high output logic. It enables galvanic isolation between microcontroller I/O and industrial field bus transceivers in motor drives and PLCs.

For engineers reviewing the ADUM220N0BRWZ datasheet, ADUM220N0BRWZ pinout, ADUM220N0BRWZ application, or ADUM220N0BRWZ equivalent, key selection criteria include reinforced insulation rating (VIORM = 849 V_peak), 1.8 V to 5 V level translation capability, AEC-Q100 qualification, and compatibility with ADuM2210 RW-16 footprint for drop-in replacement in space-constrained designs.

Technical Context

The ADUM220N0BRWZ implements iCoupler® technology using monolithic air-core transformers instead of optocouplers, ensuring dc-correct output without input transitions. Its two independent unidirectional channels support asymmetric supply configurations (e.g., 1.8 V on side 1, 5 V on side 2), enabling voltage-level translation across the isolation barrier.

It features programmable fail-safe output states (high for N0 variant), UL 1577 and VDE 0884-17 certified reinforced insulation, and robust noise immunity with 100 kV/µs common-mode transient immunity. Thermal derating follows DIN EN IEC 60747-17 up to 125°C ambient operation.

Key Specifications

Pinout & Package

RW-16 package: 16-lead wide-body SOIC (7.5 mm body width, 10.3 mm length), creepage/clearance ≥7.81 mm, RoHS compliant, rated for 125°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM220N0BRWZ, ADUM2210BRWZ offers identical form-factor and speed but inverted fail-safe behavior, while SI8621ED-B-IS trades AEC-Q100 and higher VIORM for lower unit cost and slightly relaxed timing-making ADUM220N0BRWZ optimal for safety-critical automotive and medical designs demanding guaranteed high-state defaults.

Availability

ADUM220N0BRWZ is available at Aetrix Electronics and suitable for industrial motor drives, medical diagnostic equipment, and automotive battery management systems requiring stable component supply, long-term lifecycle assurance, and certified reinforced isolation.

Supply support for ADUM220N0BRWZ 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 precision instrumentation, industrial automation, and automotive markets.

The ADuM220N series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability galvanic isolation in safety-critical systems where optocoupler limitations-such as aging, temperature drift, and speed constraints-must be eliminated.

FAQ

What is the fail-safe output state of ADUM220N0BRWZ?

The ADUM220N0BRWZ features a fail-safe high output configuration: when VDD1 is unpowered or inputs are disabled, both OUTA and OUTB transition to logic high. This behavior is inherent to the N0 variant and is confirmed in the datasheet's "No. of Inputs, VDD1 and VDD2 Side Options" section. The ADUM220N0BRWZ does not require external pull-up resistors to achieve this state.

Does ADUM220N0BRWZ support 1.8 V operation on both sides simultaneously?

Yes, ADUM220N0BRWZ supports 1.8 V operation on both VDD1 and VDD2 sides, with verified performance up to 150 Mbps and 15 ns max propagation delay. Electrical Characteristics tables for 1.8 V operation (Table 7) confirm full functionality-including CMTI ≥75 kV/µs and VIH/VIL thresholds scaled to 0.7×/0.3× VDDx-across the full −40°C to +125°C temperature range.

Is ADUM220N0BRWZ pin-compatible with any older Analog Devices isolators?

Yes, ADUM220N0BRWZ is pin-compatible with ADuM2210 in the RW-16 package, as explicitly stated in the datasheet: "The ADuM220N0 is pin compatible with the ADuM2210 RW-16 package." This allows direct PCB replacement where fail-safe high (N0) is required instead of fail-safe low (N1), provided layout accommodates identical 16-lead SOIC_W footprint and creepage requirements.

What safety certifications apply to ADUM220N0BRWZ?

ADUM220N0BRWZ carries 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 certifications. Its VIORM of 849 V_peak and reinforced insulation classification are validated per VDE 0884-17 test Method B1 at 1592 V_peak for 1 second with <5 pC partial discharge.

Can ADUM220N0BRWZ be used in bidirectional communication protocols like I²C?

No, ADUM220N0BRWZ is configured for unidirectional channel operation only (INA→OUTA, INB→OUTB). It lacks built-in bus arbitration or open-drain output structure required for true bidirectional I²C. For I²C isolation, Analog Devices recommends dedicated parts such as ADUM1250 or ADUM2251. Using ADUM220N0BRWZ for I²C would require external logic and additional isolators for clock/data separation.