MAX3466ESD+

Drivers, Receivers, Transceivers Overview

The MAX3466ESD+ is a full-duplex RS-485/RS-422 transceiver operating from a +5V supply. It supports data rates up to 40Mbps with driver and receiver propagation delays under 20ns. The device features true fail-safe circuitry, hot-swap capability, and low-power shutdown mode drawing 1µA. It accommodates up to 128 transceivers on the bus due to its 1/4-unit-load input impedance. Operating temperature range is -40°C to +85°C in a 14-pin SO package.

Drivers, Receivers, Transceivers Feature Summary

• Hot-swap tolerant enable inputs prevent bus disturbances during board insertion
• True fail-safe receiver guarantees logic-high output when inputs are open or shorted
• Low-power shutdown mode reduces supply current to approximately 1µA
• 1/4-unit-load receiver input impedance allows connection of up to 128 devices

Drivers, Receivers, Transceivers Applications

• High-speed RS-485 communications
• High-speed RS-422 communications
• Profibus applications
• Industrial-control local area networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the component matches the exact part number MAX3466ESD+. Confirm the suffix indicates lead-free/RoHS compliance and the extended industrial temperature range (-40°C to +85°C). Ensure the package type corresponds to the 14-pin Small Outline (SO) configuration specified for this variant.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX3466ESD+ when full-duplex operation and hot-swap protection are required. This model differs from the half-duplex MAX3468 by providing separate transmit and receive paths. Verify that the system requires a +5V supply and benefits from the specific phase control pins available on the 14-pin package.

Drivers, Receivers, Transceivers Part Context

The MAX3466 belongs to the MAX3465–MAX3469 family of high-speed differential bus transceivers designed for RS-485 and RS-422 standards. It is manufactured by Analog Devices Inc./Maxim Integrated. The E suffix denotes the extended temperature range, while the D suffix indicates the 14-pin SO package.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3465CSD is a parameter-equivalent alternative within the same family. Both are full-duplex transceivers with identical electrical characteristics but differ in their commercial temperature rating (0°C to +70°C) compared to the MAX3466's industrial range.