MAX3490EPA+

Overview

The MAX3490EPA+ is a low-power, full-duplex transceiver designed for RS-485 and RS-422 communication networks. It operates from a single 3.3V supply without requiring a charge pump. The device integrates one driver and one receiver within an 8-pin Plastic DIP package. It supports data transmission rates up to 10Mbps with a guaranteed maximum skew of 8ns. The unit functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Full-duplex communication capability allowing simultaneous transmission and reception
• Operates directly from a single 3.3V power supply eliminating the need for charge pumps
• Interoperable with standard +5V logic levels
• Includes thermal shutdown circuitry to protect against excessive power dissipation

Applications

• Telecommunications systems
• Industrial-control local area networks
• Transceivers for EMI-sensitive applications

Procurement Notes

Verify that the component matches the specific ordering suffix 'E' for extended temperature operation and 'PA' for the plastic dual in-line package configuration. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the source documentation explicitly lists this exact part number to avoid confusion with half-duplex variants or different package styles.

Selection Notes

Select this component when full-duplex operation is required for RS-485 or RS-422 bus architectures. It is suitable for designs needing high-speed transmission up to 10Mbps while maintaining low power consumption. Verify compatibility with existing logic voltage levels and ensure the application environment falls within the specified -40°C to +85°C operating range.

Part Context

This device belongs to the MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491 family of 3.3V transceivers. Unlike the half-duplex MAX3485, the MAX3490 provides independent transmit and receive paths. It shares the industry-standard 75176 pinout configuration with other members of the series, facilitating design flexibility across similar interface requirements.

Replacement Considerations

MAX3490ESA+