MAX3031ECSE+T

Overview

The MAX3031ECSE+T is a quad RS-422 transmitter manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3V to +3.6V supply with a typical static current of 100µA. The device supports a maximum data rate of 2Mbps and features slew-rate limiting to minimize EMI. Key electrical parameters include a propagation delay of 70ns maximum, differential output voltage of 2.0V to 3.6V, and ±15kV ESD protection on outputs. It is housed in a 16-pin Narrow SO package.

Feature Summary

• Slew-rate-limited 2Mbps operation minimizes electromagnetic interference
• Hot-swap capability prevents false transitions during power-up
• Enhanced ±15kV ESD protection on all driver outputs
• Low-power design suitable for battery-operated applications

Applications

• Telecom backplanes
• V.11/X.21 interface systems
• Industrial PLCs
• Motor control circuits

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status through authorized distributors or direct manufacturer channels before procurement. Ensure the component matches the required industrial specifications for the intended deployment environment.

Selection Notes

Select this component when a 2Mbps RS-422 transmitter with slew-rate limiting is required to reduce signal reflections. Choose this part over higher-speed variants if minimizing electromagnetic emissions is a priority. Verify that the 16-pin Narrow SO package fits the available PCB footprint constraints.

Part Context

This component belongs to the MAX3030E–MAX3033E family of quad RS-422 transmitters. It serves as a low-power, ESD-protected upgrade to industry-standard devices like the 26LS31. The MAX3031E variant specifically provides the 2Mbps baud rate option within this product line.

Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX3030E, MAX3032E, and MAX3033E series. Verify that alternative parts match the specific 2Mbps slew-rate limitation and the required operating temperature range.