MAX3490CSA+T

Drivers, Receivers, Transceivers Overview

The MAX3490CSA+T is a low-power, full-duplex transceiver designed for RS-485 and RS-422 communication protocols. It operates from a single 3.3V supply voltage (3.0V to 3.6V) without requiring an internal charge pump. The device supports data transmission rates up to 10Mbps with a maximum skew of 8ns. It contains one driver and one receiver housed in an 8-pin Small Outline (SO) package. The component functions within a temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Supports full-duplex communication on multipoint bus transmission lines
• Operates directly from a single 3.3V power supply
• Includes fail-safe receiver circuitry to guarantee logic-high output when inputs are open
• Features short-circuit current limiting and thermal shutdown protection for the driver

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific suffix 'CSA' corresponds to the commercial temperature range (0°C to +70°C) and SOIC-8 package configuration. Confirm RoHS compliance status associated with the '+' designation. Ensure the ordering information matches the exact manufacturer part number before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring full-duplex RS-485 or RS-422 connectivity at speeds up to 10Mbps. It is suitable for environments where a single 3.3V supply is available. Note that unlike the half-duplex MAX3485, this part lacks Driver Enable (DE) and Receiver Enable (RE) control pins, meaning it does not support a low-power shutdown mode.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX34xx family of 3.3V-powered transceivers manufactured by Analog Devices/Maxim Integrated. While sharing similar electrical characteristics with other members like the MAX3485, the MAX3490 is distinctively configured for full-duplex operation. It utilizes an industry-standard pinout compatible with legacy designs while offering improved performance metrics.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3485 serves as a primary alternative but provides only half-duplex functionality. Other family members such as the MAX3483 and MAX3488 offer different data rate capabilities or slew-rate limiting features. Verify pin compatibility and duplex requirements when substituting.