MAX3033ECSE+

Overview

The MAX3033ECSE+ is a quad RS-422 transmitter manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +3V to +3.6V supply with a typical static current of 100µA and power consumption under 330µW at 3.3V. The device supports a maximum data rate of 2Mbps with slew-rate limiting to minimize EMI. It features ±15kV Human Body Model ESD protection, hot-swap functionality, and thermal shutdown. Operating temperature ranges from -40°C to +85°C. It is housed in a 16-pin Narrow SO package.

Feature Summary

• Slew-rate-controlled 2Mbps data transmission
• Hot-swap capability for safe insertion
• ±15kV ESD protection on outputs

Applications

• Telecom Backplanes
• V.11/X.21 Interface
• Industrial PLCs
• Motor Control

Procurement Notes

Verify the specific suffix 'CSE' confirms the commercial temperature range (0°C to +70°C) and narrow SOIC-16 package. Confirm '+T' indicates tape-and-reel packaging if applicable. Ensure the component matches the exact manufacturer part number to avoid pinout mismatches with legacy drivers.

Selection Notes

Select this component when designing systems requiring low-power RS-422 transmission with controlled signal edges. It serves as a direct upgrade to industry-standard 26LS31 and SN75174 devices. Verify that the 2Mbps speed meets system requirements, as higher-speed variants exist within the family.

Part Context

This device belongs to the MAX3030E–MAX3033E family of quad RS-422 transmitters. It shares the same pinout and core architecture as other members but is distinguished by its guaranteed 2Mbps baud rate and slew-rate limiting characteristics.

Replacement Considerations

Direct replacements include MAX3031ECSE+ and MAX3033EESE+. Verify package compatibility and temperature ratings before substitution.

FAQ

How does the MAX3033ECSE handle hot-swap events?

It uses internal circuitry to hold enable inputs low during power-up, preventing false transitions on the data cable.

What is the purpose of the slew-rate limiting?

It minimizes electromagnetic interference (EMI) and reduces reflections caused by improperly terminated cables.