Analog Devices Inc. ADUM142E0BRWZ

Overview

ADUM142E0BRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 3.75 kV_RMS reinforced isolation in a wide-body SOIC-16 package. It delivers 150 Mbps guaranteed data rate, 15 ns max propagation delay at 1.8 V operation, and supports 1.8 V to 5 V level translation across the isolation barrier. It is used in industrial SPI isolation and medical equipment signal conditioning where high noise immunity and AEC-Q100 qualification are required.

For engineers reviewing the ADUM142E0BRWZ datasheet, ADUM142E0BRWZ pinout, ADUM142E0BRWZ application, or ADUM142E0BRWZ equivalent, key selection criteria include its 3.75 kV_RMS isolation rating, 100 kV/µs common-mode transient immunity, fail-safe low output option (E0 suffix), and compatibility with 1.8 V–5 V logic on both sides of the barrier.

Technical Context

The ADUM142E0BRWZ implements four independent unidirectional channels using monolithic air-core transformers, enabling dc-correct transmission without input transitions. Its architecture ensures tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), critical for synchronous serial interfaces like SPI and isolated ADC/DAC control.

It features dual supply domains (VDD1/VDD2), undervoltage lockout (1.5 V–1.6 V thresholds), and two enable/disable control inputs (VE2 and DISABLE1) that support tristate outputs and fail-safe behavior. The E0 variant asserts outputs low when input power is absent or disabled - a deterministic safety state verified per IEC 60601-1 and IEC 61010-1.

Key Specifications

Pinout & Package

ADUM142E0BRWZ is housed in a RoHS-compliant 16-lead wide-body SOIC (RW-16) package with creepage and clearance ≥7.8 mm, optimized for 3.75 kV_RMS reinforced insulation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM142E1BRWZ and SI8642ED-B-IS, the ADUM142E0BRWZ uniquely combines fail-safe low behavior, AEC-Q100 Grade 1 qualification, and IEC 60601-1 compliance - making it the only choice for safety-critical automotive and medical designs requiring deterministic low-state outputs during fault conditions.

Availability

ADUM142E0BRWZ is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostic equipment, automotive battery management systems, and motor drive controllers requiring stable component supply and long-term lifecycle support.

Supply support for ADUM142E0BRWZ 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 ADuM142x series belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, safety-certified isolation in medical, industrial, and automotive systems demanding reinforced insulation and fail-safe behavior.

FAQ

What does the 'E0' suffix indicate in ADUM142E0BRWZ?

The 'E0' suffix in ADUM142E0BRWZ specifies the fail-safe output configuration: outputs default to logic low when the input-side power (VDD1) is absent, disabled, or below UVLO threshold. This behavior is verified per IEC 60601-1 and IEC 61010-1 safety standards and is critical for preventing unintended activation in safety-critical systems. The ADUM142E0BRWZ implements this deterministically using internal circuitry - no external pull-downs are needed.

Does ADUM142E0BRWZ support bidirectional communication?

No, ADUM142E0BRWZ provides four unidirectional channels only - INA→OUTA, INB→OUTB, INC→OUTC, and IND→OUTD. It does not support automatic direction control or half-duplex bidirectional signaling. For bidirectional isolation, Analog Devices offers the ADUM144x family or discrete channel pairing; the ADUM142E0BRWZ is optimized for fixed-direction protocols like SPI master-to-slave or sensor-to-processor links.

What is the minimum recommended creepage distance for ADUM142E0BRWZ on PCB layout?

The ADUM142E0BRWZ in RW-16 package requires a minimum PCB creepage distance of 7.8 mm between input-side (Pins 1–8) and output-side (Pins 9–16) copper traces, as specified in Table 10 of the datasheet. This value satisfies IEC 60601-1 2×MOPP and IEC 61010-1 requirements for 3.75 kV_RMS reinforced insulation at pollution degree 2 and altitudes ≤2000 m. Board design must maintain this spacing across solder mask and bare copper.

Can ADUM142E0BRWZ operate with different supply voltages on each side?

Yes, ADUM142E0BRWZ supports independent 1.8 V to 5 V supplies on VDD1 and VDD2 - enabling true level translation. For example, it can interface a 1.8 V FPGA I/O bank (VDD1) with a 3.3 V ADC (VDD2) while maintaining full 150 Mbps data rate and 15 ns propagation delay. Both supplies must meet their respective UVLO thresholds (1.5 V–1.6 V) to ensure reliable operation.

Is ADUM142E0BRWZ pin-compatible with earlier ADUM140x/ADUM141x series?

Yes, ADUM142E0BRWZ is pin-compatible with ADUM140E1 and ADUM141E1 per the datasheet's backward compatibility statement, but not with ADUM1400/ADUM1401/ADUM1402 (which use different pinouts). The ADUM142E0BRWZ shares identical RW-16 footprint, pin numbering, and function mapping with ADUM142D0BRWZ and ADUM142E1BRWZ - allowing drop-in replacement within the ADUM142x family for fail-safe behavior changes.