MAX3468EPA+

Drivers, Receivers, Transceivers Overview

The MAX3468EPA+ is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and supports data rates up to 40Mbps. The device features true fail-safe circuitry, ensuring a logic-high receiver output when inputs are open or shorted. It includes hot-swap capability on the driver enable pin to prevent bus disturbances during board insertion. The component utilizes an 8-pin PDIP package and functions within a temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Hot-swap tolerant driver enable input structure prevents bus contention during power-up
• True fail-safe receiver guarantees logic-high output under open or shorted input conditions
• 1/4-unit-load receiver impedance allows connection of up to 128 transceivers on a single bus
• Integrated thermal shutdown and foldback current limiting protect against overload

Drivers, Receivers, Transceivers Applications

• High-speed RS-485 communications networks
• Profibus applications requiring compliant output levels
• Industrial control local area networks
• Level translation for differential signaling

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm lead-free compliance and package type. The 'E' designation indicates an extended industrial temperature range of -40°C to +85°C. Confirm that the '+'' suffix denotes RoHS-compliant packaging. Ensure the selected variant matches the required half-duplex configuration and DIP-8 footprint for your design.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring hot-swap tolerance on the DE pin, which distinguishes it from similar parts like the MAX3469. Verify that the half-duplex architecture aligns with the system's communication protocol. Ensure the +5V supply voltage is stable within the specified 4.75V to 5.25V range to maintain signal integrity and meet Profibus specifications.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX3465–MAX3469 family of high-speed differential bus transceivers. While sharing core electrical characteristics such as the 40Mbps rate and fail-safe receiver, the MAX3468 is distinct due to its half-duplex operation and integrated hot-swap protection on the enable pins. Other family members vary in duplex mode and feature sets.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3469EPA+ is a direct functional substitute within the same family but lacks the hot-swap capability on the driver enable pin. Both share identical electrical parameters and package dimensions. Verify if the absence of hot-swap protection impacts the target application's reliability requirements.