MAX3082ECSA+T

Overview

The MAX3082ECSA+T is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices (Maxim Integrated). It operates on a single +5V supply with a voltage range of 4.75V to 5.25V and draws 600µA typical quiescent current. The device supports data rates up to 115kbps, featuring slew-rate limiting to minimize EMI. It includes ±15kV Human Body Model ESD protection, fail-safe circuitry ensuring a logic-high receiver output when inputs are open or shorted, and a low-current shutdown mode. It utilizes an 8-pin SOIC package.

Feature Summary

• Slew-rate limited drivers reduce electromagnetic interference and signal reflections for error-free transmission at lower speeds.
• Fail-safe receiver guarantees a logic-high output state when differential inputs are left open or shorted.
• Enhanced electrostatic discharge protection rated at ±15kV on all I/O pins using the Human Body Model.

Applications

• RS-422 and RS-485 communication networks
• Industrial control local area networks
• EMI-sensitive applications requiring level translation

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) rather than the industrial range (-40°C to +85°C), which corresponds to the 'E' suffix. Confirm the '+T' designation aligns with the required reel packaging format. Ensure the component source is authorized to guarantee authenticity and traceability.

Selection Notes

Select this model specifically for half-duplex applications requiring reduced EMI through slew-rate limiting. It is suitable for systems operating within the commercial temperature range. For higher speed requirements up to 10Mbps, consider the MAX3088E instead. Verify that the 1/8-unit-load input impedance meets the bus node count requirements.

Part Context

This component belongs to the MAX3080E–MAX3089E family of high-speed transceivers. Within this series, the MAX3082E is designated as a half-duplex device with fixed slew-rate limiting. It shares pin compatibility with industry-standard parts like the 75180 but offers enhanced ESD protection and fail-safe features.

Replacement Considerations

The MAX3085E is a direct functional substitute within the same family, offering identical half-duplex operation but with higher slew-rate limits allowing speeds up to 500kbps. Other compatible devices in the series include the MAX3080E and MAX3081E for full-duplex configurations.