MAX3088CPA+

Overview

The MAX3088CPA+ is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver within an 8-pin Plastic DIP package. The device supports data transmission rates up to 10Mbps with no slew-rate limiting. It operates on a single +5V supply, accepting input voltages between 4.75V and 5.25V. The quiescent supply current is typically 375µA. The component features fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It is rated for commercial operating temperatures ranging from 0°C to +70°C.

Feature Summary

• Fail-safe circuitry ensures a logic-high receiver output during bus idle states or input faults.
• High-speed communication capability supporting data rates up to 10Mbps without slew-rate limitations.
• 1/8-unit-load receiver input impedance allows connection of up to 256 transceivers on a single bus.
• Integrated thermal shutdown protects the driver outputs against excessive power dissipation.

Applications

• RS-422 and RS-485 communications networks
• Industrial-control local area networks
• Level translators in digital systems

Procurement Notes

Verify the specific suffix 'CPA+' corresponds to the required 8-pin PDIP package and the 0°C to +70°C commercial temperature range. Confirm that the half-duplex configuration aligns with the system design requirements. Ensure compatibility with the standard +5V supply voltage before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high-speed data transmission up to 10Mbps in a half-duplex topology. It is suitable for environments where fail-safe operation is critical to maintain signal integrity during bus faults. Consider the 8-pin DIP package constraints for through-hole mounting. Verify that the 1/8-unit-load input impedance meets the network node count requirements.

Part Context

This device belongs to the MAX3080–MAX3089 family of high-speed transceivers designed for RS-485/RS-422 communication. The MAX3088 specifically provides half-duplex operation with unrestricted slew rates. It shares common electrical characteristics with other members of the series but differs in duplex mode and package options.

Replacement Considerations

The datasheet notes pin-compatibility with the industry-standard 75180 transceiver. Designers may consider the 75180 as a functional substitute if additional integrated features are not required. Other family members like the MAX3087 offer full-duplex operation but require different pin configurations.