MAX3030ECSE+

Overview

The MAX3030ECSE+ 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 of 100µA. The device supports data rates up to 20Mbps, featuring a maximum propagation delay of 16ns and part-to-part skew under 5ns. Outputs are protected against ±15kV electrostatic discharge using the Human Body Model. It includes hot-swap functionality to prevent false transitions during power-up or insertion. The component is housed in a 16-pin Narrow SO package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Hot-swap capability prevents false transitions on data cables during board insertion or power-up sequences.
• Outputs feature enhanced ESD protection rated at ±15kV via the Human Body Model.
• Low static current consumption makes the device suitable for battery-powered applications.
• Guaranteed high-speed performance with low propagation delay and minimal skew for parallel data driving.

Applications

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

Procurement Notes

Verify the specific suffix 'CSE+' corresponds to the commercial temperature range (0°C to +70°C) and the 16-pin Narrow SOIC package configuration. Confirm that the ordering information matches the manufacturer's latest datasheet revision to ensure compatibility with existing design specifications and regulatory requirements.

Selection Notes

Select this component when a quad RS-422 transmitter with 20Mbps speed and hot-swap protection is required. Ensure the application environment stays within the 0°C to +70°C range. For industrial environments requiring -40°C to +85°C operation, consider the EE-series variants instead.

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 offers pin-compatible options with varying baud rates and enable configurations to suit different system architectures.

Replacement Considerations

Public confirmed substitute part numbers include MAX3030EESE+ for extended temperature ranges and MAX3030ECUE+ for TSSOP packaging. Verify pinout compatibility with legacy 26LS31 and SN75174 designs before substitution.

FAQ

How does the hot-swap feature function?

The hot-swap inputs hold the transmitter outputs in a disabled state during power-up or board insertion, preventing false transitions caused by leakage currents or parasitic capacitance until the system stabilizes.

What is the maximum propagation delay?

The maximum propagation delay is 16ns, with a typical value of 8ns under standard test conditions.

Is the device compatible with 26LS31 pinouts?

Yes, the MAX3030E is designed to be pin-compatible with the industry-standard 26LS31 device, facilitating easy upgrades.