Analog Devices Inc. ADUM150N1BRZ

Overview

ADUM150N1BRZ from Analog Devices is a 5-channel, 3.0 kV_RMS reinforced digital isolator based on iCoupler® transformer technology. It supports 150 Mbps data rate, 13 ns max propagation delay at 5 V, and operates across 1.7–5.5 V supply rails with level translation. It delivers fail-safe high output state and is used in SPI isolation for industrial PLCs where high CMTI (>100 kV/µs) and thermal robustness (125°C) are critical.

For engineers reviewing the ADUM150N1BRZ datasheet, ADUM150N1BRZ pinout, ADUM150N1BRZ application, or ADUM150N1BRZ equivalent, this page provides verified specifications, package mapping, functional pin roles, safety-certified insulation parameters, and validated alternative options for multichannel isolation design-in.

Technical Context

The ADUM150N1BRZ implements five independent unidirectional CMOS-isolated channels using monolithic air-core transformers, enabling dc-correct operation without input toggling. Its architecture ensures tight channel-to-channel propagation delay matching (≤4.0 ns codirectional skew) and low jitter (70 ps rms at 5 V).

It features dual-supply operation (VDD1/VDD2), undervoltage lockout (1.6 V threshold), and failsafe logic-high output configuration (N1 variant). Reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577 certification support medical (IEC 60601-1) and industrial (IEC 61010-1) safety requirements.

Key Specifications

Pinout & Package

ADUM150N1BRZ uses a 16-lead, RoHS-compliant narrow-body SOIC package (SOIC_N-16, body width 3.9 mm, creepage/clearance ≥4.0 mm). Pinout follows standard ADuM15xN layout with side 1 (pins 1–8) and side 2 (pins 9–16) isolated domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8651ED-B-IS and ISO6751FRDWR, ADUM150N1BRZ offers superior combination of speed (150 Mbps), low skew (≤4 ns), narrow-body SOIC packaging, and proven transformer-based CMTI performance-making it optimal for timing-sensitive industrial and medical isolation where layout density and transient immunity are prioritized.

Availability

ADUM150N1BRZ is available at Aetrix Electronics and suitable for industrial PLCs, motor drive control units, precision data acquisition systems, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.

Supply support for ADUM150N1BRZ 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 ADuM150N/151N/152N family was designed specifically for high-reliability multichannel digital isolation in harsh electromagnetic environments-emphasizing low propagation skew, reinforced safety certification, and wide supply voltage range for system-level interoperability.

FAQ

What is the fail-safe output behavior of ADUM150N1BRZ?

The ADUM150N1BRZ is the N1 variant, meaning its outputs default to logic high when the input-side power (VDD1) is absent or below UVLO threshold. This behavior prevents undefined states in safety-critical systems such as motor control enable lines or PLC output drivers, ensuring predictable shutdown behavior during power faults. The ADUM150N1BRZ maintains this fail-safe state across its full −40°C to +125°C operating range.

Does ADUM150N1BRZ support bidirectional communication on any channel?

No, ADUM150N1BRZ provides five unidirectional channels only-A through E flow exclusively from side 1 (pins 1–5) to side 2 (pins 9–13). It does not implement auto-direction sensing or half-duplex logic. For bidirectional isolation (e.g., I²C), a separate device like ADUM1250 or discrete channel pairing is required. The ADUM150N1BRZ datasheet explicitly defines all channels as input→output with no reverse-path capability.

What safety certifications apply to ADUM150N1BRZ?

ADUM150N1BRZ is certified to UL 1577 (3000 V_RMS, 1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 565 V_PEAK), IEC/CSA 62368-1, IEC/CSA 60601-1 (1 MOPP), and IEC/CSA 61010-1. These approvals confirm reinforced insulation suitability for industrial, medical, and test equipment applications. Certification documentation is available via Analog Devices' iCoupler Safety Portal.

Can ADUM150N1BRZ operate with mismatched supply voltages on each side?

Yes, ADUM150N1BRZ supports independent VDD1 and VDD2 supplies ranging from 1.7 V to 5.5 V each, enabling true level translation-for example, 1.8 V MCU I/O to 3.3 V ADC interface or 5 V PLC logic to 2.5 V FPGA domain. The ADUM150N1BRZ maintains full 150 Mbps data rate and timing specs across all valid supply combinations, with no derating required.

How does ADUM150N1BRZ handle common-mode transients?

ADUM150N1BRZ achieves ≥100 kV/µs common-mode transient immunity (CMTI) due to its transformer-based iCoupler architecture and balanced differential signaling. This performance is measured per IEC 61000-4-4 with 800 V transients at 1000 V common-mode bias, ensuring reliable operation in high-noise environments like variable-frequency drives and switch-mode power supplies without bit errors or output glitches.