Analog Devices Inc. ADUM262N1WBRIZ

Overview

ADUM262N1WBRIZ from Analog Devices is a 6-channel, 5.0 kV_RMS reinforced digital isolator using iCoupler® technology, with 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and fail-safe low output configuration. It enables SPI/data converter isolation in industrial PLCs and motor drives where high noise immunity and AEC-Q100 qualification are required.

For engineers reviewing the ADUM262N1WBRIZ datasheet, ADUM262N1WBRIZ pinout, ADUM262N1WBRIZ application, or ADUM262N1WBRIZ equivalent, key selection criteria include its 849 V_PEAK reinforced insulation rating (DIN EN IEC 60747-17), 100 kV/µs common-mode transient immunity, 1.7–5.5 V dual-supply operation with level translation, and wide-body SOIC_IC package for creepage/clearance compliance.

Technical Context

The ADUM262N1WBRIZ implements six independent unidirectional CMOS-isolated channels using monolithic air-core transformers, supporting asymmetric supply voltages (e.g., 1.8 V on side 1, 5 V on side 2) while maintaining dc-correct output states. Its architecture ensures no input transitions are needed to preserve output logic state.

It features two fail-safe options: N0 outputs default high when input power is lost; N1 (as in ADUM262N1WBRIZ) outputs default low. Propagation delay matching is ≤4.0 ns between any two channels, and jitter is as low as 70 ps rms at 5 V operation.

Key Specifications

Pinout & Package

ADUM262N1WBRIZ uses a 16-lead, RoHS-compliant, wide-body SOIC_IC (RI-16) package with 1.27 mm pitch and 10.3 mm body width. Input-side pins (1–8) and output-side pins (9–16) are physically segregated to maximize isolation barrier integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8661ED-B-IS and ISO6760FDWER, ADUM262N1WBRIZ delivers superior timing precision (13 ns vs. ≥14 ns), higher CMTI (100 vs. ≤85 kV/µs), and automotive-grade reliability-making it optimal for safety-critical motor control and medical imaging interfaces where deterministic latency and long-term stability are mandatory.

Availability

ADUM262N1WBRIZ is available at Aetrix Electronics and suitable for industrial PLCs, EV motor inverters, medical imaging subsystems, and automotive BMS requiring stable component supply, long-lifecycle support, and certified reinforced isolation.

Supply support for ADUM262N1WBRIZ 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 since 1965.

The ADuM26xN series was designed specifically for high-reliability, high-noise industrial and automotive isolation applications-emphasizing robustness, long-term insulation lifetime, and regulatory compliance over raw cost reduction.

FAQ

What is the fail-safe behavior of ADUM262N1WBRIZ?

The ADUM262N1WBRIZ is the N1 variant, meaning all six outputs default to logic low when the input-side supply (VDD1) is removed or falls below UVLO threshold (1.5 V). This behavior is hardwired and requires no external components. It ensures safe shutdown of downstream circuits like gate drivers or analog switches in case of input power failure. The ADUM262N1WBRIZ maintains this state until VDD1 is restored above 1.6 V.

Does ADUM262N1WBRIZ support bidirectional communication?

No, ADUM262N1WBRIZ is a unidirectional isolator: channels A–F transmit only from side 1 (pins 1–6) to side 2 (pins 9–14). For bidirectional SPI or I²C isolation, two ADUM262N1WBRIZ devices must be used-one for each direction-or a dedicated bidirectional part like ADUM260N must be selected. The pinout and internal architecture do not allow signal reversal or auto-direction sensing.

What is the minimum creepage and clearance for ADUM262N1WBRIZ in PCB layout?

The ADUM262N1WBRIZ in its wide-body SOIC_IC (RI-16) package guarantees minimum external creepage and clearance of 8.7 mm between input-side pins (1–8) and output-side pins (9–16), per IEC 62368-1 and IEC 60601-1. PCB layout must maintain ≥8.7 mm spacing across the isolation barrier, including solder mask openings and copper traces. Internal gap is 29 µm, and CTI >400 V confirms Material Group II suitability for pollution degree 2 environments.

Can ADUM262N1WBRIZ operate with different supply voltages on each side?

Yes, ADUM262N1WBRIZ supports independent supply voltages from 1.7 V to 5.5 V on VDD1 (input side) and VDD2 (output side). This enables true level translation-for example, interfacing a 1.8 V FPGA I/O bank with a 5 V ADC SPI interface. Thresholds scale with respective VDD (VIH = 0.7×VDDx), and output swing is rail-to-rail relative to its local VDD2, ensuring compatibility across mixed-voltage systems.

Is ADUM262N1WBRIZ qualified for automotive applications?

Yes, ADUM262N1WBRIZ is AEC-Q100 qualified (Grade 1: −40°C to +125°C ambient) and certified to IEC/CSA 60601-1 (2 MOPP) and IEC/CSA 61010-1. Its reinforced insulation (5.0 kV_RMS, 849 V_PEAK) and 100 kV/µs CMTI meet stringent automotive EMC and safety requirements for battery management, onboard chargers, and traction inverter control modules.