MAX3031ECSE+

Overview

The MAX3031ECSE+ 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. It provides ±15kV ESD protection on outputs, hot-swap functionality, and thermal shutdown. The part is housed in a 16-pin Narrow SO package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Slew-rate-limited 2Mbps data transmission for reduced EMI
• Hot-swap capability prevents false transitions during power-up
• ±15kV Human Body Model ESD protection on driver outputs
• Low-power design suitable for battery-operated systems

Applications

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

Procurement Notes

Verify the specific suffix 'CSE+' against the manufacturer's official documentation to confirm the exact operating temperature range, package type, and lead-free status. Ensure compatibility with existing board layouts and signal integrity requirements before finalizing procurement orders.

Selection Notes

Select this component when a 2Mbps RS-422 transmitter with controlled slew rates is required to limit electromagnetic interference. It serves as a low-power alternative to standard drivers, particularly where hot-swap insertion and high ESD tolerance are critical system constraints.

Part Context

This device belongs to the MAX3030E–MAX3033E family of quad RS-422 transmitters. It is designed as a pin-compatible upgrade to industry-standard devices like the 26LS31 and SN75174, offering enhanced ESD protection and lower power consumption while maintaining standard interface protocols.

Replacement Considerations

Direct pin-compatible replacements include other members of the MAX3030E–MAX3033E family, such as the MAX3030ECSE+, MAX3032ECSE+, or MAX3033ECSE+. Verify that the substitute matches the 2Mbps slew-rate specification if EMI reduction is a priority.