MAX3033ECUE+

Overview

The MAX3033ECUE+ is a quad RS-422 transmitter manufactured by Analog Devices Inc. (Maxim Integrated). It operates on a single +3V to +3.6V supply and features a guaranteed 2Mbps data rate with slew-rate limiting to minimize EMI. The device provides ±15kV Human Body Model ESD protection on outputs and includes hot-swap functionality to prevent false transitions during power-up. It utilizes a 16-pin TSSOP package, complies with TIA/EIA-422-B and ITU-T V.11 standards, and offers thermal shutdown protection.

Feature Summary

• Hot-swap capability prevents false transitions on the data cable during power-up or hot insertion
• Slew-rate-limited 2Mbps data rate minimizes electromagnetic interference and reflections
• Outputs protected against electrostatic discharges up to ±15kV using the Human Body Model
• Low static current consumption suitable for battery-powered applications

Applications

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

Procurement Notes

Verify that the component matches the exact part number MAX3033ECUE+. Confirm the suffix indicates lead-free and RoHS compliance. Ensure the package type is 16-pin TSSOP and the temperature range is 0°C to +70°C. Cross-reference the manufacturer identification with Analog Devices Inc. or Maxim Integrated to avoid counterfeit parts.

Selection Notes

Select this component when a quad RS-422 transmitter with a 2Mbps data rate is required. It is appropriate for designs needing slew-rate control to reduce EMI. Use this part instead of faster variants if lower bandwidth is sufficient. Verify compatibility with existing enable pin logic, as this model uses dual enable inputs for channel groups.

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 and SN75174. The family shares similar electrical characteristics but varies in data rates and enable pin configurations across different part numbers.

Replacement Considerations

The MAX3033ECSE is a direct replacement offering the same specifications in a 16-pin Narrow SO package. Other family members like the MAX3031E provide identical performance but may differ in enable pin logic or package availability.

FAQ

What is the maximum data rate for the MAX3033E?

The MAX3033E has a guaranteed maximum data rate of 2Mbps.

How does the hot-swap feature function?

The hot-swap feature holds the enable inputs in a disabled state during power-up to eliminate false transitions on the data cable caused by leakage currents or parasitic capacitance.

What is the ESD protection rating for the outputs?

All transmitter outputs are protected to ±15kV using the Human Body Model.