MAX3080CPD+

Overview

The MAX3080CPD+ is a full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features one driver and one receiver with fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The device supports data transmission up to 115kbps using slew-rate-limited drivers to minimize EMI. It operates on a single +5V supply (4.75V to 5.25V) with a typical quiescent current of 375µA. The component provides a 1/8-unit-load receiver input impedance, allowing up to 256 transceivers on the bus. It is housed in a 14-pin Plastic DIP package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Fail-safe circuitry ensures a logic-high receiver output during bus idle or fault conditions.
• Slew-rate-limited drivers reduce electromagnetic interference and signal reflections for error-free communication at lower speeds.
• High bus capacity supported by 1/8-unit-load receiver input impedance.

Applications

• RS-422/RS-485 Communications
• Level Translators
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks

Procurement Notes

Verify the specific suffix 'CPD+' against the manufacturer's official ordering information to confirm the plastic DIP package and commercial temperature range specifications. Ensure compatibility with existing board layouts designed for the 14-pin DIP footprint. Cross-reference the datasheet revision date to confirm electrical characteristics match the design requirements.

Selection Notes

Select this component for applications requiring full-duplex RS-485/RS-422 communication with reduced EMI emissions. It is suitable for systems needing high node density due to the 1/8-unit-load input impedance. Consider the 115kbps maximum data rate limitation imposed by the slew-rate limiting feature when designing for higher speed requirements.

Part Context

The MAX3080 is part of the MAX3080–MAX3089 family of high-speed transceivers. This series includes variants supporting different duplex modes, data rates, and slew-rate limitations. The MAX3080 specifically targets full-duplex applications with built-in protection against common bus faults.

Replacement Considerations

The datasheet indicates pin-compatible alternatives such as the MAX3083 and MAX3086, which offer higher data rates but may require adjustments for EMI sensitivity.