MAX3083EESD+

Overview

The MAX3083EESD+ is a full-duplex RS-422/RS-485 transceiver in a 14-pin SOIC package. It supports data rates up to 500kbps with slew-rate-limited drivers. The device operates on a single +5V supply, drawing 375µA typical quiescent current. It features ±15kV ESD protection and fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The operating temperature range extends from -40°C to +85°C.

Feature Summary

• Fail-safe receiver design ensures a logic-high output state during bus idle conditions or input disconnection.
• Slew-rate limiting reduces electromagnetic interference and signal reflections for reliable communication at 500kbps.
• Enhanced electrostatic discharge protection rated at ±15kV on all I/O pins using the Human Body Model.

Applications

• RS-422 and RS-485 serial communication networks
• Industrial control local area networks
• EMI-sensitive applications requiring controlled signal transitions

Procurement Notes

Verify the component marking against official datasheet specifications to confirm authenticity. Ensure the ordering suffix matches the required temperature grade and packaging format. Cross-reference the manufacturer part number with authorized distributor catalogs to validate availability and compliance status before finalizing procurement orders.

Selection Notes

Select this model specifically for full-duplex applications requiring transmission speeds up to 500kbps. Verify that the system requires independent driver and receiver enable controls rather than half-duplex switching. Confirm that the 14-pin SOIC footprint aligns with the target PCB layout constraints and thermal requirements.

Part Context

This component belongs to the MAX3080E–MAX3089E family of high-speed transceivers. It shares pin compatibility with industry-standard devices like the 75180 but includes enhanced ESD protection and specific slew-rate characteristics tailored for the 500kbps operational mode within the broader product line.

Replacement Considerations

The MAX3083EESD+ is pin-compatible with the standard 75180 transceiver. Designers should verify that the replacement device meets the specific 500kbps slew-rate requirements and full-duplex configuration needs of the original design.

FAQ

What is the fail-safe behavior of the MAX3083E receiver?

The receiver guarantees a logic-high output when the differential inputs (A-B) are greater than or equal to -50mV, which occurs when the inputs are open, shorted, or connected to a terminated bus with all drivers disabled.

How does the MAX3083E handle electromagnetic interference?

It utilizes reduced slew-rate drivers to minimize EMI and reduce reflections caused by improperly terminated cables, facilitating error-free data transmission up to 500kbps.

Is the MAX3083E compatible with the RS-485 standard?

Yes, it complies with EIA/TIA-485 standards while providing enhanced fail-safe thresholds that guarantee a logic-high state under no-load conditions.