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MAX22445FAWE+

ADIMAX22445FAWE+

Analog Devices Inc./Maxim Integrated
General Purpose Digital Isolator 5000Vrms 4 Channel 200Mbps 50kV/µs (Typ) CMTI 16-SOIC (0.295", 7.50mm Width)
NRND1,605 in stock
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Overview

The MAX22445FAWE+ is a high-speed, four-channel digital isolator designed to provide up to 5000Vrms of galvanic isolation between circuits. Utilizing Maxim Integrated proprietary capacitive coupling technology, it supports data rates up to 200Mbps while maintaining a high common-mode transient immunity of 50kV/us typical. It operates over a wide supply range of 1.71V to 5.5V, making it ideal for interfacing between different voltage domains.

Why Choose This Part

This isolator offers a industry-leading 200Mbps data rate and 5000Vrms isolation in a standard 16-pin wide SOIC package. Its low power consumption of approximately 4.39mA per channel at 50MHz and wide 1.71V to 5.5V operating range simplify power tree design in mixed-voltage systems.

Applications

Isolated SPI Communication
Provides high-speed isolation for SPI buses in motor controllers or sensor interfaces where ground loops must be eliminated.
Industrial Fieldbus Systems
Protects communication controllers in RS-485, RS-422, and CAN network deployments in harsh industrial environments.
Battery Management Systems
Safely monitors high-voltage battery stacks by isolating the measurement electronics from the primary controller.
Medical Equipment
Ensures patient safety by providing 5k Vrms isolation in diagnostic and monitoring instrumentation.

Key Specifications

Type General Purpose
Data Rate 200Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SOIC (0.295", 7.50mm Width)
Voltage - Supply 1.71V ~ 5.5V
Number of Channels 4
Voltage - Isolation 5000Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/1
Rise / Fall Time (Typ) 0.8ns, 1ns (Max)
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 2ns
Propagation Delay tpLH / tpHL (Max) 9.2ns, 9.4ns
Common Mode Transient Immunity (Min) 50kV/us (Typ)

Getting Started

Engineers can evaluate this part using the MAX22445WEVKIT evaluation board, which provides a proven layout for high-speed signal integrity. When designing a PCB, ensure a minimum creepage and clearance is maintained under the isolator to meet safety certifications, and place bypass capacitors as close to the VDD pins as possible.

Also Consider

ISO7741 TITexas Instruments - A popular four-channel alternative with similar 5k Vrms isolation and high immunity for industrial applications.
Si8641 Skyworks Solutions Inc. - Offers similar high-speed digital isolation using CMOS-based capacitive coupling technology.

Categories

Interface ICs > Digital Isolators Industrial & Automation > Industrial Communication