MAX3084CSA+T

Overview

The MAX3084CSA+T is a full-duplex RS-422/RS-485 transceiver in an 8-pin SO package. It supports data rates up to 500kbps with slew-rate-limited drivers. The device operates on a single +5V supply (4.75V to 5.25V) and draws 375µA quiescent current. It features fail-safe circuitry ensuring a logic-high receiver output when inputs are open or shorted. The receiver input impedance is 1/8-unit-load, allowing up to 256 transceivers on the bus.

Feature Summary

• Fail-safe circuitry guarantees a logic-high receiver output when inputs are open or shorted.
• Slew-rate-limited drivers minimize EMI and reduce reflections from improperly terminated cables.
• 1/8-unit-load receiver input impedance supports up to 256 transceivers on the communication bus.

Applications

• RS-422/RS-485 communications
• Level translators
• Transceivers for EMI-sensitive applications
• Industrial-control local area networks

Procurement Notes

Verify the component matches the exact part number MAX3084CSA+T. Confirm the manufacturer is Analog Devices Inc./Maxim Integrated. Check that the suffix indicates the commercial temperature range and SOIC-8 package. Ensure RoHS compliance documentation is available from the supplier.

Selection Notes

Select this component for full-duplex RS-422/RS-485 applications requiring data rates up to 500kbps. It is suitable for systems needing reduced EMI through slew-rate limiting. Use this part when a 1/8-unit-load receiver allows high node counts on the bus. Ensure the design supports a single +5V power supply.

Part Context

The MAX3084 is part of the MAX3080–MAX3089 family of high-speed transceivers. This series includes variants supporting different duplex modes and data rates up to 10Mbps. The MAX3084 specifically provides full-duplex operation with a 500kbps maximum data rate capability.

Replacement Considerations

The MAX3084EESA+ is a pin-compatible alternative with an extended industrial temperature range (-40°C to +85°C). Verify that the operating temperature requirements of the application align with the specific variant selected.