MAX3043ESE/GG8

Overview

The MAX3043ESE is a quad RS-485/RS-422 transmitter operating from a single +5V supply. It supports data rates up to 250kbps with slew-rate limiting to minimize EMI and reflections. The device features ±10kV Human Body Model ESD protection on all outputs and withstands ±4kV Electrical Fast Transient/Burst stress per IEC 1000-4-4. It includes hot-swap capability to prevent false transitions during power-up or insertion. Operating temperature range is -40°C to +85°C, housed in a 16-pin Narrow SO package.

Feature Summary

• Hot-swap inputs eliminate false transitions during board insertion or power-up sequences
• Slew-rate limited outputs reduce electromagnetic interference and cable reflections
• Robust transient immunity including ±10kV ESD and ±4kV IEC fast transient burst protection

Applications

• Telecommunications equipment
• Industrial motor control systems
• Transmitter for ESD-sensitive applications
• Hand-held equipment
• Industrial PLCs
• Networking

Procurement Notes

Verify the specific suffix 'ESE' corresponds to the industrial temperature range (-40°C to +85°C) and the narrow SOIC-16 package configuration. Confirm that the component is sourced as an original Maxim Integrated product to ensure compliance with the specified electrical characteristics and reliability standards.

Selection Notes

Select this model when interfacing with RS-485 or RS-422 networks requiring low-speed transmission up to 250kbps. The integrated slew-rate limiting makes it suitable for long twisted-pair cables where signal integrity is critical. Ensure the system design accommodates the single +5V supply requirement and utilizes the dedicated enable pins for proper bus management.

Part Context

This component belongs to the MAX3040–MAX3045 family of quad transmitters designed as upgrades to industry-standard parts like the SN75174 and DS26LS31C. It provides enhanced ESD protection and hot-swap functionality while maintaining pin compatibility with legacy designs, facilitating easier migration for existing hardware architectures.

Replacement Considerations

Pin-compatible replacements include the MAX3040, MAX3041, and MAX3042B within the same family, provided the data rate requirements align. Legacy equivalents such as the SN75174 and DS26LS31C can be substituted if lower ESD tolerance and absence of hot-swap features are acceptable.