MAX3488ESA+

Overview

The MAX3488ESA+ is a low-power, full-duplex transceiver designed for RS-485 and RS-422 communication protocols. It operates from a single 3.3V supply voltage (3.0V to 3.6V) and supports data rates up to 250kbps. The device integrates one driver and one receiver within an 8-pin SOIC package. It features slew-rate-limited drivers to minimize electromagnetic interference and reduce signal reflections on improperly terminated cables. The unit includes thermal shutdown circuitry and short-circuit current limiting for driver protection, alongside a fail-safe receiver input that guarantees a logic-high output when inputs are open.

Feature Summary

• Full-duplex operation with independent driver and receiver channels
• Slew-rate limited drivers to minimize EMI and cable reflections
• Operates directly from a single 3.3V supply without charge pumps
• Interoperable with +5V logic levels

Applications

• Telecommunications systems
• Industrial-control local area networks
• EMI-sensitive applications requiring reduced noise emissions

Procurement Notes

Verify the component authenticity by checking the manufacturer markings against official documentation. Confirm the specific suffix indicates the extended temperature range (-40°C to +85°C). Ensure the package type matches the required surface-mount footprint. Cross-reference the ordering information to confirm RoHS compliance status as indicated in the datasheet.

Selection Notes

Select this component when full-duplex communication is required at lower data rates up to 250kbps. It is suitable for environments where minimizing electromagnetic interference is critical due to its slew-rate-limited outputs. Choose this part over half-duplex variants if simultaneous transmission and reception on separate lines are necessary. Ensure the system operates within the specified 3.3V supply constraints.

Part Context

The MAX3488ESA+ belongs to the MAX348x family of 3.3V-powered transceivers manufactured by Analog Devices/Maxim Integrated. This series includes both half-duplex models like the MAX3483 and full-duplex models like the MAX3488. The 'E' designation in the model number specifies the industrial temperature range capability, distinguishing it from commercial grade parts.

Replacement Considerations

The MAX3490ESA+ serves as a direct functional substitute within the same family, offering identical full-duplex architecture and pinout but supporting higher data rates up to 10Mbps.