MAX14931CASE+T

Digital Isolators Overview

The MAX14931CASE+T is a four-channel digital isolator from the MAX14930–MAX14932 family, manufactured by Analog Devices Inc./Maxim Integrated. It utilizes capacitive coupling technology to provide galvanic isolation with a voltage rating of 2750Vrms. The device supports data rates up to 150Mbps and offers a typical common-mode transient immunity (CMTI) of 25kV/µs. It features a 3/1 channel configuration within a 16-lead SOIC package. Operating temperatures range from -40°C to +125°C, and it accepts supply voltages between 1.71V and 5.5V.

Digital Isolators Feature Summary

• Provides robust galvanic isolation for digital signals using proprietary capacitive coupling technology.
• Supports high-speed data transmission with a maximum rate of 150Mbps per channel.
• Features high common-mode transient immunity to maintain signal integrity in noisy environments.
• Interfaces directly with most microcontrollers and FPGAs without requiring external biasing.

Digital Isolators Applications

• Industrial automation systems requiring reliable signal isolation
• Medical equipment needing safe patient isolation
• Inverter motor control applications
• Power metering and energy management systems

Digital Isolators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated to ensure authenticity. Check RoHS compliance status for environmental regulations. Ensure the 16-SOIC package dimensions match your PCB footprint requirements. Validate the 3/1 channel configuration aligns with your circuit design needs.

Digital Isolators Selection Notes

Select this component when four isolated channels are required with high-speed performance. The 150Mbps data rate suits applications demanding rapid signal transfer. The 2750Vrms isolation rating provides adequate safety margins for many industrial standards. Consider the 16-SOIC package for surface-mount assembly compatibility. Evaluate the -40°C to +125°C operating range against your environmental conditions.

Digital Isolators Part Context

This part belongs to the MAX14930–MAX14932 family of general-purpose digital isolators. These devices share similar core technologies but differ in channel configurations and data rates. The MAX14931 specifically offers a 3/1 split configuration. This family is designed to replace traditional optocouplers in modern electronic designs.

Digital Isolators Replacement Considerations

Public confirmed substitutes include MAX14930CASE+T and MAX14932CASE+T from the same family. Verify channel count and configuration compatibility before substitution. Ensure isolation voltage ratings meet or exceed original requirements. Check package pinout alignment to avoid PCB redesign.

Digital Isolators FAQ

What is the typical common-mode transient immunity (CMTI) of the MAX14931CASE+T?

The typical CMTI is 25kV/µs, ensuring reliable operation in high-noise environments.

Does the MAX14931CASE+T support bidirectional communication?

No, the channels are unidirectional, meaning data flows in one direction only.

What is the maximum data rate supported by this isolator?

The device supports data rates up to 150Mbps.