MAX3088ECPA+

Overview

The MAX3088ECPA+ is a half-duplex RS-485/RS-422 transceiver from the MAX3080E–MAX3089E family. It operates on a single +5V supply (4.75V to 5.25V) and supports data rates up to 10Mbps with unrestricted driver slew rates. The device features ±15kV ESD protection, fail-safe circuitry guaranteeing a logic-high receiver output when inputs are open or shorted, and allows up to 256 transceivers on the bus. It draws 375µA typical quiescent current and includes thermal shutdown protection. The component is housed in an 8-pin Plastic DIP package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Fail-safe receiver guarantees a logic-high output when differential inputs are open or shorted.
• Enhanced ±15kV electrostatic discharge protection on all I/O pins using the Human Body Model.
• Thermal shutdown circuitry protects drivers against excessive power dissipation by forcing outputs high-impedance.

Applications

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

Procurement Notes

Verify the specific suffix 'CPA+' corresponds to the 8-pin Plastic DIP package and the commercial temperature range (0°C to +70°C). Confirm that the ordering information matches the manufacturer's official datasheet specifications for this exact part number variant before finalizing procurement.

Selection Notes

Select this component for half-duplex applications requiring high-speed transmission up to 10Mbps without slew-rate limitations. Ensure the design environment accommodates the 0°C to +70°C operating temperature range. Verify compatibility with standard +5V power rails and check if the 8-pin PDIP footprint fits the target PCB layout constraints.

Part Context

This device belongs to the MAX3080E–MAX3089E series of high-speed transceivers designed for RS-485 and RS-422 communication standards. The MAX3088E specifically provides half-duplex operation with unrestricted slew rates, distinguishing it from slew-rate-limited variants like the MAX3082E. It serves as a robust interface solution for industrial environments requiring reliable long-distance data transmission.

Replacement Considerations

The MAX3088E is pin-compatible with industry-standard parts such as the 75180. Designers should verify that any replacement maintains the same half-duplex configuration, 10Mbps speed capability, and fail-safe characteristics to ensure functional equivalence in existing circuits.