MAX3082EEPA+

Overview

The MAX3082EEPA+ is a half-duplex RS-485/RS-422 transceiver in an 8-pin PDIP package. It operates from a single +5V supply (4.75V to 5.25V) and supports data rates up to 115kbps with slew-rate-limited drivers. The device features ±15kV ESD protection on all I/O pins, fail-safe circuitry guaranteeing a logic-high receiver output when inputs are open or shorted, and low-power shutdown mode drawing 1nA. It includes one driver and one receiver with 1/8-unit-load input impedance.

Feature Summary

• Enhanced ESD protection for RS-485 I/O pins rated at ±15kV using the Human Body Model.
• True fail-safe receiver guarantees a logic-high output when inputs are open or shorted while maintaining EIA/TIA-485 compatibility.
• Reduced slew-rate drivers minimize electromagnetic interference (EMI) and reduce reflections caused by improperly terminated cables.
• Low-current shutdown mode reduces power consumption significantly when the device is not actively transmitting or receiving.

Applications

• RS-422/RS-485 communications
• Level translators
• Transceivers for EMI-sensitive applications
• Industrial-control local area networks

Procurement Notes

Verify the specific suffix EEPA+ corresponds to the -40°C to +85°C temperature range and 8-pin PDIP package. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering information matches the exact part number to avoid functional differences associated with other variants in the MAX3080E-MAX3089E family.

Selection Notes

Select this component for half-duplex RS-485/RS-422 applications requiring error-free transmission up to 115kbps. The slew-rate limiting makes it suitable for environments where EMI reduction is critical. Compare against MAX3088E if higher speeds up to 10Mbps are needed, or MAX3081E for full-duplex operation. Verify pin compatibility with existing designs referencing industry-standard pinouts.

Part Context

The MAX3082EEPA+ belongs to the MAX3080E–MAX3089E family of high-speed transceivers. This series provides various combinations of duplex modes and slew-rate limitations. The MAX3082E specifically targets half-duplex communication with reduced EMI characteristics. It shares the same core architecture as other family members but differs in operational mode and speed capabilities.

Replacement Considerations

Pin-compatible with industry standard 75180 devices. Direct functional replacements within the same family include MAX3082E without the '+' suffix for non-RoHS requirements. For full-duplex needs, consider MAX3081E. For higher speeds, evaluate MAX3088E.