MAX3030EEUE+

Overview

The MAX3030EEUE+ 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 maximum static current consumption of less than 100µA. The device supports data rates up to 20Mbps, featuring a maximum propagation delay of 16ns and part-to-part skew under 5ns. It provides ±15kV ESD protection on outputs and includes hot-swap functionality to prevent false transitions during power-up. The component is housed in a 16-pin TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Complies with TIA/EIA-422-B (RS-422) and ITU-T V.11 standards for digital data transmission over balanced lines.
• Features hot-swap capability that eliminates false transitions on the data cable during power-up or hot insertion.
• Provides enhanced electrostatic discharge protection rated at ±15kV using the Human Body Model on all driver outputs.
• Includes thermal shutdown protection to safeguard the device against excessive junction temperatures.

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. The 'EE' suffix indicates a -40°C to +85°C extended temperature range, while 'UE' denotes the 16-pin TSSOP package. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the source document matches the manufacturer's official datasheet specifications before procurement.

Selection Notes

Select this component when a quad RS-422 transmitter with high-speed performance is required. The MAX3030E variant specifically offers a guaranteed 20Mbps data rate suitable for parallel data driving. Compare against the MAX3031E if slew-rate limiting is needed to minimize EMI. Verify pin compatibility with legacy 26LS31 or SN75174 designs if migrating existing circuits.

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 enable pin configurations and data rate capabilities across different model numbers.

Replacement Considerations

Public confirmed substitute part numbers include MAX3030ECSE+, MAX3030ECUE+, and MAX3030EESE+. These variants share the same core functionality but differ in operating temperature ranges and physical packages. Verify pinout compatibility with the original design before substitution.

FAQ

What is the difference between the MAX3030E and MAX3031E models?

The MAX3030E guarantees a 20Mbps data rate with low propagation delay, making it ideal for parallel data. The MAX3031E features a slew-rate-limited 2Mbps data rate to minimize EMI and reduce reflections on improperly terminated cables.

How does the hot-swap feature function?

The hot-swap inputs hold the enable pins in a disabled state during power-up or hot insertion. This prevents false transitions on the data cable caused by leakage currents or parasitic capacitance from high-impedance drivers.

What is the ESD protection rating for the outputs?

All transmitter outputs are protected to ±15kV using the Human Body Model. This protection remains effective in both normal operation and power-down states without causing latchup.