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ADUM141E1BRWZ

ADIADUM141E1BRWZ

Analog Devices Inc.
General Purpose Digital Isolator 3750Vrms 4 Channel 150Mbps 75kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
NRND1,822 in stock
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Overview

The ADUM141E1BRWZ is a quad-channel digital isolator based on Analog Devices iCoupler technology, providing 3750Vrms isolation. It features a 3/1 channel configuration (three channels in one direction and one in the reverse) and supports high-speed data rates up to 150Mbps. This device is designed to eliminate ground loop issues and provide robust signal isolation in harsh electrical environments.

Why Choose This Part

This isolator offers a very low propagation delay of 13ns and high CMTI of 75kV/us, ensuring signal integrity during fast voltage transients. Unlike optocouplers, the iCoupler technology provides better performance stability over temperature and does not suffer from LED aging effects.

Applications

SPI Bus Isolation
The 3/1 channel split is ideal for isolating SPI interfaces, where three lines (SCLK, MOSI, SS) go to the peripheral and one (MISO) returns to the controller.
Industrial Fieldbus Systems
Provides high-speed data isolation for RS-485, RS-232, and CAN bus nodes in noisy industrial automation environments.
Isolated PWM Control
Transmits high-frequency PWM signals to motor drivers or power converters while maintaining a high common-mode transient immunity of 75kV/us.

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 (0.295", 7.50mm Width)
Voltage - Supply 1.7V ~ 5.5V
Number of Channels 4
Voltage - Isolation 3750Vrms
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 0.1uF ceramic bypass capacitors as close as possible to the VDD1 and VDD2 pins on both sides of the isolation barrier to ensure stable operation. Use a PCB layout with a clear isolation gap under the 16-SOIC package to maintain the rated 3750Vrms isolation voltage.

ADUM141E1 Family

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

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

Also Consider

Si8641 Skyworks Solutions Inc. - Provides a 2.5kVrms isolation alternative with low power consumption and 150Mbps throughput.