MAX3087ESA+

Overview

The MAX3087ESA+ is a full-duplex RS-422/RS-485 transceiver featuring one driver and one receiver in an 8-pin SOIC package. It supports data rates up to 10Mbps with no slew-rate limiting. The device operates on a single +5V supply (4.75V to 5.25V) and draws 375µA of quiescent current. It incorporates fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The unit load input impedance allows for up to 256 transceivers on the bus, and it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Fail-safe receiver circuitry ensures a logic-high output state during idle or fault conditions
• Full-duplex communication architecture supporting independent transmit and receive paths
• High-speed transmission capability reaching 10Mbps without slew-rate limitations
• Low unit-load input impedance enabling high node density on standard RS-485 buses

Applications

• RS-422 and RS-485 serial communication networks
• Industrial control local area networks
• EMI-sensitive applications requiring high-speed data transfer

Procurement Notes

Verify the specific suffix 'ESA+' against official Analog Devices documentation to confirm the extended industrial temperature range (-40°C to +85°C) and lead-free packaging status. Ensure the ordering code matches the exact pin configuration required for your PCB layout before finalizing procurement.

Selection Notes

Select this component for designs requiring full-duplex operation at speeds up to 10Mbps. It is suitable for systems needing robust fail-safe behavior on terminated buses. Verify that the application environment stays within the specified voltage and thermal limits for reliable performance.

Part Context

This device belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-422 and RS-485 standards. The MAX3087 variant specifically provides full-duplex connectivity with unrestricted driver slew rates, distinguishing it from slew-rate-limited models in the same series.

Replacement Considerations

The MAX3087EESA+ is a compatible alternative offering identical electrical specifications and pinout compatibility. Both devices support full-duplex RS-485/RS-422 communication at 10Mbps.