MAX3031ECUE+T

Overview

The MAX3031ECUE+T is a quad RS-422 transmitter from the MAX3030E–MAX3033E family, designed for digital data transmission over twisted-pair balanced lines. It operates on a single +3V to +3.6V supply with a maximum static current of 100µA. The device supports a guaranteed 2Mbps baud rate with slew-rate limiting to minimize EMI. Key electrical parameters include a propagation delay of 70ns maximum and a part-to-part skew of 18ns. Outputs feature ±15kV Human Body Model ESD protection and hot-swap capability. It is housed in a 16-pin TSSOP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Slew-rate-limited 2Mbps data rate minimizes electromagnetic interference and reflections.
• Hot-swap functionality prevents false transitions during power-up or board insertion.
• Outputs protected against electrostatic discharges up to ±15kV using the Human Body Model.
• Low-power design suitable for battery-operated applications with less than 100µA static current.

Applications

• Telecom backplanes
• V.11/X.21 interface systems
• Industrial programmable logic controllers (PLCs)
• Motor control circuits

Procurement Notes

Verify that the ordering suffix matches the required temperature grade and packaging format. Confirm the specific pinout compatibility with existing designs, as the MAX3031E variant utilizes global enable inputs distinct from other family members. Ensure the component meets RoHS compliance standards if required by the manufacturing process.

Selection Notes

Select this component when a 2Mbps data rate with controlled slew rates is necessary to reduce signal reflections. Choose this part over the 20Mbps variants if minimizing electromagnetic emissions is a priority. Verify that the 0°C to +70°C commercial temperature range aligns with the system's environmental requirements.

Part Context

This device 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 specifically offers the 2Mbps slew-rate-limited option, distinguishing it from the high-speed 20Mbps versions within the same product line.

Replacement Considerations

Pin-compatible replacements include other members of the MAX3030E–MAX3033E family, such as the MAX3030E, MAX3032E, and MAX3033E, provided the data rate and enable pin configuration match the application needs.