MAX3077EAPA

Overview

The MAX3077EAPA+ is a +3.3V, full-duplex RS-422/RS-485 transceiver in an 8-PDIP package. It features 15kV ESD protection, fail-safe operation, and hot-swap capability. Operating supply current is 1.5 mA at 3.3 V. Power dissipation is 727 mW. It supports RS422 and RS485 protocols with surface mount or through-hole installation options.

Feature Summary

• Integrated 15kV electrostatic discharge protection for robust signal integrity
• Fail-safe receiver design ensures a high logic state when inputs are open
• Hot-swap functionality allows insertion without disrupting the bus system

Applications

• Industrial communication networks requiring fault tolerance
• Multi-drop data transmission systems using RS-485 standards
• Point-to-point serial communication links utilizing RS-422 protocols

Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm package type and temperature range. Ensure the component matches the required +3.3V operating voltage specifications. Confirm availability status as distribution channels may list restricted supply conditions. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and revision history before procurement.

Selection Notes

Select this transceiver for applications demanding high ESD immunity and hot-swap compatibility on +3.3V buses. The fail-safe feature prevents undefined states during bus idle conditions. Consider the PDIP package for prototyping or environments requiring mechanical robustness. Verify that the 1.5 mA operating current aligns with system power budget constraints.

Part Context

This device belongs to the Maxim Integrated family of high-speed, low-voltage transceivers designed for industrial and commercial serial communication. It complements other RS-422/RS-485 solutions by offering specific protection features like 15kV ESD handling. The series targets reliable data exchange in electrically noisy environments where standard interfaces might fail.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitutes. Ensure any replacement maintains the +3.3V supply requirement and PDIP-8 footprint. Verify that alternative components support identical RS-422/RS-485 protocol standards and ESD protection levels.