MAX3485CSA+

Drivers, Receivers, Transceivers Overview

The MAX3485CSA+T is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 3.3V supply (3.0V to 3.6V) and supports data rates up to 10Mbps. The device contains one driver and one receiver in an 8-pin SOIC package, with an operating temperature range of 0°C to +70°C. Key electrical characteristics include a typical supply current of 1.9mA, a shutdown current of 2nA, and a driver differential output delay of 22ns. It features fail-safe receiver inputs and thermal shutdown protection.

Drivers, Receivers, Transceivers Feature Summary

• Operates from a single 3.3V supply without requiring a charge pump
• Includes low-power shutdown mode with 2nA standby current
• Features fail-safe receiver inputs that guarantee a logic-high output when inputs are open
• Provides driver overload protection through short-circuit current limiting and thermal shutdown

Drivers, Receivers, Transceivers Applications

• Telecommunications systems
• Industrial-control local area networks
• Transceivers for EMI-sensitive applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging rather than tube packaging. Confirm the 'C' designation aligns with the required commercial temperature range of 0°C to +70°C. Ensure the component matches the RoHS-compliant status indicated by the '+' suffix. Cross-reference the manufacturer part number with official distributor catalogs to validate authenticity and sourcing channels.

Drivers, Receivers, Transceivers Selection Notes

Select this component for half-duplex RS-485 or RS-422 communication links requiring speeds up to 10Mbps. It is suitable for designs constrained to a 3.3V power rail where minimizing electromagnetic interference is important due to its slew-rate-limited drivers. Consider the 8-pin SOIC footprint for surface-mount assembly and verify that the 0°C to +70°C operating range meets the environmental requirements of the target application.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX3483/MAX3485/MAX3486 family of low-power transceivers designed for multipoint bus transmission lines. It shares the industry-standard 75176 pinout configuration with related parts like the MAX3483 and MAX3486. The primary distinction within this family is the data rate capability, with the MAX3485 specifically optimized for higher-speed transmission compared to the 250kbps MAX3483.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX3485ECSA+ serves as a direct functional replacement offering an extended industrial temperature range (-40°C to +85°C). Other compatible options within the same series include the MAX3483 for lower speed requirements or the MAX3486 for intermediate speeds, provided the interface pinout remains identical.