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MAX14930BASE+T

ADIMAX14930BASE+T

Analog Devices Inc./Maxim Integrated
General Purpose Digital Isolator 2750Vrms 4 Channel 25Mbps 25kV/µs (Typ) CMTI 16-SOIC (0.154", 3.90mm Width)
NRND6,240 in stock
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Overview

The MAX14930BASE+T is a four-channel digital isolator designed to provide up to 2750Vrms of galvanic isolation between circuits. It utilizes capacitive coupling technology to transfer data at rates up to 25Mbps while maintaining low power consumption and high common-mode transient immunity of 25kV/us. This device is specifically engineered to protect sensitive microcontrollers and FPGAs from high-voltage noise in harsh environments.

Why Choose This Part

This isolator offers a wide supply voltage range from 1.71V to 5.5V, allowing for seamless level translation between different logic domains. Its robust CMTI of 25kV/us ensures data integrity even in the presence of fast switching transients, while the narrow 16-SOIC package saves critical PCB real estate.

Applications

Industrial Fieldbus Systems
Provides reliable isolation for PROFIBUS, Modbus, and other industrial communication protocols.
Isolated Serial Interfaces
Ideal for protecting RS-232, RS-485, and RS-422 ports in electrically noisy environments.
Battery Management Systems
Ensures safe communication between high-voltage battery stacks and low-voltage monitoring circuits.
Medical Instrumentation
Used in equipment requiring galvanic isolation to meet patient safety and signal integrity standards.

Key Specifications

Type General Purpose
Data Rate 25Mbps
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) 2.6ns
Propagation Delay tpLH / tpHL (Max) 27.5ns, 28.8ns
Common Mode Transient Immunity (Min) 25kV/us (Typ)

Getting Started

To evaluate this part, use the MAX1493XEVKIT, which provides a pre-assembled platform to test the isolator's propagation delay and CMTI performance. Ensure 0.1uF bypass capacitors are placed as close as possible to the VDDA and VDDB pins for optimal noise decoupling.

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

Categories

Interface ICs > Digital Isolators Industrial & Automation > Industrial Communication