MAX3087EPA+

Overview

The MAX3087EPA+ is a full-duplex RS-422/RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It contains one driver and one receiver, supporting data rates up to 10Mbps with unrestricted slew rates. The device operates on a single +5V supply (4.75V to 5.25V) and draws a typical quiescent current of 375µA. It features fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The component is housed in an 8-pin Plastic DIP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Fail-safe receiver circuitry ensures a logic-high output state during bus idle conditions or input faults.
• Full-duplex communication architecture allows simultaneous independent transmission and reception.
• High-speed driver capability supports data transmission rates up to 10Mbps without slew-rate limiting.

Applications

• RS-422 and RS-485 serial communications networks
• Industrial control local area networks
• Level translation interfaces

Procurement Notes

Verify the specific suffix 'E' confirms the extended industrial temperature range (-40°C to +85°C). Confirm the 'PA+' designation indicates the 8-pin PDIP package variant. Ensure compliance with RoHS directives matches project requirements. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity before procurement.

Selection Notes

Select this component for applications requiring full-duplex operation at speeds up to 10Mbps. It is suitable for systems needing fail-safe behavior on terminated buses. Consider alternative models like the MAX3088 if half-duplex functionality is required instead. Verify that the 8-pin DIP package fits the target PCB layout constraints.

Part Context

This device belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-485/RS-422 standards. The MAX3087 specifically provides full-duplex connectivity with high-speed drivers. Other family members offer varying duplex modes and slew-rate limitations to suit different EMI and speed requirements.

Replacement Considerations

The MAX3088EPA+ serves as a pin-compatible alternative offering half-duplex operation instead of full-duplex. The MAX3086EPA+ provides similar full-duplex performance but may differ in specific electrical characteristics or packaging options depending on the exact revision.