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MAX14431CAEE+

ADIMAX14431CAEE+

Analog Devices Inc./Maxim Integrated
SPI Digital Isolator 3000Vrms 4 Channel 200Mbps 50kV/µs (Typ) CMTI 16-SSOP (0.154", 3.90mm Width)
NRND1,375 in stock
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Overview

The MAX14431CAEE+ is a high-speed, four-channel digital isolator designed for robust SPI and general-purpose digital signal isolation. It provides 3000Vrms of galvanic isolation while supporting data rates up to 200Mbps, ensuring high-speed communication in electrically noisy or high-voltage environments. The device operates across a wide supply range of 1.71V to 5.5V, making it compatible with various logic levels.

Why Choose This Part

This isolator offers an industry-leading data rate of 200Mbps and a high Common Mode Transient Immunity (CMTI) of 50kV/us typical, ensuring signal integrity in harsh switching environments. Its ultra-wide 1.71V to 5.5V supply range allows for seamless level translation between different logic families without additional components.

Applications

Industrial Automation
Isolating SPI or GPIO signals between field-side sensors and a central controller to prevent ground loops.
High-Speed SPI Data Link
Facilitating high-bandwidth data transfer between a microcontroller and high-speed ADCs or DACs requiring 200Mbps performance.
Motor Control Systems
Protecting low-voltage control electronics from high-voltage noise generated by power inverter stages.
Battery Management Systems (BMS)
Providing safe communication across different voltage domains in multi-cell battery stacks.

Key Specifications

Type SPI
Data Rate 200Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SSOP (0.154", 3.90mm Width)
Voltage - Supply 1.71V ~ 5.5V
Number of Channels 4
Voltage - Isolation 3000Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/1
Rise / Fall Time (Typ) 1.6ns, 1.4ns (Max)
Supplier Device Package 16-QSOP
Pulse Width Distortion (Max) 2ns
Propagation Delay tpLH / tpHL (Max) 9.2ns, 9.4ns
Common Mode Transient Immunity (Min) 50kV/us (Typ)

Getting Started

To evaluate this device, engineers can use the MAX1443x evaluation kits which feature SMA connectors for signal integrity testing. Ensure that 0.1uF ceramic bypass capacitors are placed as close as possible to the VDD pins on both the primary and secondary sides of the 16-QSOP package.

MAX14431 Family

Part NumberDifferenceStock
MAX14431BAEE+ (Analog Devices / Maxim Integrated) BAEE+ 200

Categories

Interface ICs > Digital Isolators Industrial & Automation > Industrial Communication