ADIMAX14933ASE+
Overview
The MAX14933ASE+ is a 2-channel, bidirectional I2C digital isolator that provides 2750Vrms of galvanic isolation between circuits. It utilizes capacitive coupling technology to transfer data while maintaining a high common-mode transient immunity (CMTI) of 25kV/us, ensuring reliable communication in electrically noisy environments. This device is designed to interface directly with I2C, SMBus, and PMBus buses without requiring external pull-up resistors on the isolated side.
Why Choose This Part
It offers wide supply voltage support from 2.25V to 5.5V, allowing seamless level translation between different logic domains. The device features an extended operating temperature range of -40degC to 125degC and supports high-speed I2C operation up to 1.7MHz. Its 16-SOIC narrow package provides a compact footprint while maintaining robust 2750Vrms isolation performance.
Applications
Key Specifications
Getting Started
To evaluate the device, use the MAX14933WEVKIT evaluation kit which provides a proven PCB layout for testing isolation and signal integrity. Ensure that bypass capacitors are placed as close as possible to the VDD pins on both sides of the isolation barrier to minimize noise. When designing the PCB, maintain the recommended creepage and clearance distances under the 16-SOIC package to satisfy safety standards.
