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ADUM141E1BRZ

ADIADUM141E1BRZ

Analog Devices Inc.
General Purpose Digital Isolator 3000Vrms 4 Channel 150Mbps 75kV/µs CMTI 16-SOIC (0.154", 3.90mm Width)
NRND449 in stock
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Overview

The ADUM141E1BRZ is a 4-channel digital isolator based on Analog Devices iCoupler technology, providing 3000Vrms isolation without the performance limitations of optocouplers. It supports high-speed data rates up to 150Mbps with a 3/1 channel configuration (three forward, one reverse), making it ideal for bidirectional communication buses. The device features high common-mode transient immunity of 75kV/us to ensure signal integrity in noisy industrial environments.

Why Choose This Part

It offers superior timing performance with a maximum propagation delay of 13ns and tight channel-to-channel matching. Unlike optocouplers, it maintains performance over its full temperature range and does not suffer from LED aging, resulting in higher reliability and a smaller footprint.

Applications

SPI Bus Isolation
Perfect for isolating 4-wire SPI interfaces where three signals (SCLK, MOSI, SS) travel in one direction and one (MISO) returns.
Industrial Fieldbus
Used in RS-485 or CAN nodes to provide galvanic isolation between the controller and the transceiver to prevent ground loops.
Motor Control Inverters
Transmits PWM signals from a low-voltage controller to high-side gate drivers while maintaining high transient immunity.
Battery Management Systems (BMS)
Isolates communication lines between high-voltage battery stacks and the central management unit.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Magnetic Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply 1.7V ~ 5.5V
Number of Channels 4
Voltage - Isolation 3000Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/1
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 3ns
Propagation Delay tpLH / tpHL (Max) 13ns, 13ns
Common Mode Transient Immunity (Min) 75kV/us

Getting Started

Place the device across a physical isolation gap on your PCB, ensuring that VDD1 and VDD2 are independently bypassed with 0.1uF capacitors. Use the EVAL-ADUM141EEBZ evaluation board to quickly verify signal integrity and propagation delay in your specific circuit topology.

ADUM141E1 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Voltage - Isolation Stock
ADUM141E1BRZ (this part) SOIC-16 3000V 449
ADUM141E1BRWZ SOIC-16 3750V 1,822
ADUM141E1BRQZ SSOP-16 3000V 613

Also Consider

Si8641 Skyworks Solutions Inc. - Provides a 3/1 channel arrangement with competitive 150Mbps speeds and very low EMI emissions.