EmbeddedRelated.com
    Parts    MAX14930DASE+
MAX14930DASE+

ADIMAX14930DASE+

Analog Devices Inc./Maxim Integrated
General Purpose Digital Isolator 2750Vrms 4 Channel 1Mbps 25kV/µs (Typ) CMTI 16-SOIC (0.154", 3.90mm Width)
Active477 in stock
Datasheet Digi-Key Compare Prices

Overview

The MAX14930DASE+ is a four-channel digital isolator providing 2750Vrms of galvanic isolation between circuits. It is designed to transfer digital signals between systems with different power domains while maintaining high electromagnetic immunity and low power consumption. This specific variant supports data rates up to 1Mbps with a default-low output state.

Why Choose This Part

This isolator offers a wide supply voltage range from 1.71V to 5.5V, allowing direct interfacing between different logic levels without additional translators. It features high Common-Mode Transient Immunity (CMTI) of 25kV/us and consumes as little as 2.1mA per channel at 5V, making it efficient for high-density designs.

Applications

Industrial Automation
Isolating fieldbus communications like RS-485 or RS-232 from sensitive controller logic in PLC systems.
Isolated SPI Interfaces
Providing signal isolation for high-side ADC or DAC monitoring in power supply designs.
Battery Management Systems (BMS)
Safe communication between high-voltage battery stacks and low-voltage management microcontrollers.
Motor Control
Protecting control circuitry from high-frequency switching noise and transients in motor drive inverters.

Key Specifications

Type General Purpose
Data Rate 1Mbps
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 4/0
Rise / Fall Time (Typ) 2ns, 2ns
Supplier Device Package 16-SOIC
Pulse Width Distortion (Max) 4.5ns
Propagation Delay tpLH / tpHL (Max) 54.1ns, 55.3ns
Common Mode Transient Immunity (Min) 25kV/us (Typ)

Getting Started

To evaluate this component, use the MAX1493XWEVKIT evaluation kit which provides a proven PCB layout for testing isolation performance. Ensure that 0.1uF bypass capacitors are placed as close as possible to the VDD pins on both sides of the isolator to maintain signal integrity and CMTI performance.

MAX14930 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
MAX14930DASE+ (this part) 1M SOIC-16 4.5ns 54.1ns, 55.3ns 477
MAX14930BASE+T 25M SOIC-16 2.6ns 27.5ns, 28.8ns 6,240
MAX14930AAWE+ 1M SOIC-16 4.5ns 54.1ns, 55.3ns 129