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MAX14931FASE+

ADIMAX14931FASE+

Analog Devices Inc./Maxim Integrated
General Purpose Digital Isolator 2750Vrms 4 Channel 150Mbps 25kV/µs (Typ) CMTI 16-SOIC (0.154", 3.90mm Width)
NRND5,062 in stock
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Overview

The MAX14931FASE+ is a high-speed, four-channel digital isolator utilizing capacitive coupling technology to provide 2750Vrms of galvanic isolation. It features a 3/1 channel configuration (three forward, one reverse) and supports data rates up to 150Mbps while operating across a wide supply range of 1.71V to 5.5V.

Why Choose This Part

This isolator offers exceptional high-speed performance with very low propagation delay and a high typical CMTI of 25kV/us. Its wide operating temperature range of -40C to +125C and flexible 1.71V-5.5V logic compatibility make it suitable for a broad array of low-power and high-reliability systems.

Applications

Isolated SPI Communications
The 150Mbps throughput and 3/1 channel architecture are specifically optimized for high-speed SPI bus isolation between a controller and a peripheral.
Industrial Fieldbus Interfaces
Provides essential signal isolation for RS-485, RS-232, and CAN networks in noisy industrial environments to prevent ground loops.
Battery Management Systems (BMS)
Safely bridges high-voltage battery stacks and low-voltage control logic while maintaining high signal integrity.
Medical Equipment
Used in clinical instrumentation requiring robust galvanic isolation for patient safety and data protection.

Key Specifications

Type General Purpose
Data Rate 150Mbps
Technology Capacitive Coupling
Channel Type Unidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply 1.71V ~ 5.5V
Number of Channels 4
Voltage - Isolation 2750Vrms
Operating Temperature -40degC ~ 125degC
Inputs - Side 1/Side 2 3/1
Rise / Fall Time (Typ) 2ns, 2ns
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 1ns
Propagation Delay tpLH / tpHL (Max) 7.5ns, 7.4ns
Common Mode Transient Immunity (Min) 25kV/us (Typ)

Getting Started

Designers can evaluate this series using the MAX1493XWEVKIT evaluation kit. Ensure that bypass capacitors (0.1uF) are placed as close as possible to the VDD pins on both the primary and secondary sides to maintain stability during high-speed switching.

MAX14931 Family

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

Part Number Data Rate Package Pulse Width Distortion (Max) Propagation Delay tpLH / tpHL (Max) Stock
MAX14931FASE+ (this part) 150M SOIC-16 1ns 7.5ns, 7.4ns 5,062
MAX14931EASE+ 25M SOIC-16 2.6ns 27.5ns, 28.8ns 10,630
MAX14931AASE+ 1M SOIC-16 4.5ns 54.1ns, 55.3ns 269
MAX14931FASE+T 150M SOIC-16 1ns 7.5ns, 7.4ns 18,003

Categories

Interface ICs > Digital Isolators Industrial & Automation > Industrial Communication Industrial & Automation > Functional Safety