MAX3080CSD+

Overview

The MAX3080CSD+ is a full-duplex RS-485/RS-422 transceiver featuring one driver and one receiver in a 14-pin SOIC package. It supports data rates up to 115kbps with slew-rate-limited drivers to minimize EMI. The device operates on a single +5V supply (4.75V to 5.25V) and draws 375µA quiescent current. It includes fail-safe circuitry ensuring a logic-high output when inputs are open or shorted, and offers low-power shutdown mode.

Feature Summary

• Fail-safe circuitry guarantees a logic-high receiver output when the bus is idle or disconnected.
• Slew-rate-limited drivers reduce electromagnetic interference and signal reflections for reliable communication.
• Low-power shutdown mode significantly reduces supply current when the device is not actively transmitting or receiving.

Applications

• RS-422 and RS-485 serial communications networks
• Industrial control systems and local area networks
• EMI-sensitive applications requiring reduced signal reflections

Procurement Notes

Verify the specific suffix 'CSD+' corresponds to the commercial temperature range and tube packaging configuration. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the ordering information matches the exact pinout and electrical specifications documented in the official datasheet before finalizing procurement.

Selection Notes

Select this component for full-duplex applications requiring error-free transmission at speeds up to 115kbps. The integrated slew-rate limiting makes it suitable for environments where electromagnetic interference must be minimized. Verify that the system requires a +5V supply and can accommodate the 14-pin SOIC footprint during the design phase.

Part Context

This part belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-485/RS-422 interfaces. While other variants in the series support higher data rates or half-duplex operation, the MAX3080 specifically provides full-duplex connectivity with controlled slew rates. It serves as a robust interface solution for standard industrial communication protocols.

Replacement Considerations

The datasheet notes pin compatibility with the industry-standard 75180 transceiver. Designers replacing legacy components should verify that the fail-safe thresholds and unit-load capabilities align with existing bus termination requirements.