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ADUM121N1BRZ-RL7

ADIADUM121N1BRZ-RL7

Analog Devices Inc.
General Purpose Digital Isolator 3000Vrms 2 Channel 150Mbps 75kV/µs CMTI 8-SOIC (0.154", 3.90mm Width)
NRND1,372 in stock
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Overview

The ADUM121N1BRZ-RL7 is a dual-channel digital isolator based on Analog Devices iCoupler technology, providing 3000Vrms isolation. It features a high data rate of 150Mbps and a common-mode transient immunity of 75kV/us, ensuring robust signal integrity in electrically noisy environments. This unidirectional device utilizes a 1/1 channel configuration, making it ideal for isolated SPI or UART communication paths.

Why Choose This Part

This isolator offers superior timing performance with a maximum propagation delay of 13ns and pulse width distortion of less than 4.5ns. Its high CMTI of 75kV/us prevents data corruption during fast voltage transients, which is critical in high-power switching applications.

Applications

Industrial Fieldbus Isolation
Protects sensitive microcontrollers from high-voltage transients in RS-485, CAN, or Profibus networks.
Isolated SPI Communication
Provides high-speed data transfer between a processor and isolated ADCs or DACs in precision measurement systems.
Switch Mode Power Supply (SMPS) Feedback
Bridges the primary and secondary sides of power converters to provide safe digital feedback loops.
Battery Management Systems
Isolates communication signals between high-voltage battery stacks and the low-voltage management controller.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Magnetic Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 1.7V ~ 5.5V
Number of Channels 2
Voltage - Isolation 3000Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 1/1
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Supplier Device Package 8-SOIC
Pulse Width Distortion (Max) 3ns
Propagation Delay tpLH / tpHL (Max) 13ns, 13ns
Common Mode Transient Immunity (Min) 75kV/us

Getting Started

To evaluate this device, use the EVAL-ADUM121N0EBZ evaluation board which provides a simplified layout for testing signal integrity and propagation delay. Ensure that VDD1 and VDD2 are bypassed with 0.1uF ceramic capacitors placed as close to the pins as possible to maintain high-frequency performance.