MAX3030ECSE+T

Overview

The MAX3030ECSE+T is a quad RS-422 transmitter manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3V to 3.6V, with a typical operating voltage of 3.3V and a maximum supply current of 100µA. The device supports data rates up to 20Mbps, featuring a maximum propagation delay of 16ns and part-to-part skew less than 5ns. It provides ±15kV ESD protection on driver outputs and includes hot-swap functionality. The component is housed in a 16-pin Narrow SO package and functions within an industrial temperature range of 0°C to +70°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 low-static current consumption suitable for battery-powered applications and power-conscious designs.
• Includes hot-swap capability to eliminate false transitions during power-up or hot insertion events.
• Provides enhanced electrostatic discharge protection rated at ±15kV using the Human Body Model.

Applications

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

Procurement Notes

Verify the specific suffix 'CSE' confirms the commercial temperature range and narrow SOIC package configuration. Ensure compatibility with existing board layouts requiring 16-pin surface-mount footprints. Confirm that the '+T' designation aligns with reel packaging requirements for automated assembly processes.

Selection Notes

Select this component when high-speed differential signaling up to 20Mbps is required alongside low quiescent current consumption. Verify that the system environment remains within the 0°C to +70°C operational limits. Consider the pinout compatibility with industry-standard 26LS31 devices if global enable control is preferred over dual-channel enable schemes.

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 legacy components like the 26LS31 and SN75174. The family offers options for both 2Mbps slew-rate-limited and 20Mbps high-speed variants across various package types.

Replacement Considerations

Direct functional equivalents include the MAX3030EESE+T for extended temperature ranges and the MAX3030ECUE+T for TSSOP packaging. Legacy replacements such as the 26LS31 or SN75174 may require verification of ESD protection levels and static current specifications.