MAX1487CPA

Drivers, Receivers, Transceivers Overview

The MAX1487CPA is a low-power, 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 operates from a single 5V supply (4.75V to 5.25V) and supports data rates up to 2.5Mbps with unrestricted slew rates. It features quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus. The quiescent current is typically 230µA. The component is rated for an operating temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Quarter-unit-load receiver input impedance enables connection of up to 128 transceivers on the bus
• Driver outputs include short-circuit current limiting and thermal shutdown protection
• Receiver inputs feature fail-safe circuitry that guarantees a logic-high output when the input is open
• Low-power design allows operation with minimal supply current in active and disabled states

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Low-power RS-485 communication systems
• Low-power RS-422 communication systems
• Level translation applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the package type and temperature rating. The 'C' designation indicates commercial grade operation, while 'P' denotes the plastic DIP package. Ensure compatibility with system voltage requirements and interface standards before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component for half-duplex applications requiring high node density due to its 1/4 unit load receiver impedance. It is suitable for systems needing data rates up to 2.5Mbps without slew-rate limitations. Verify that the 0°C to +70°C operating range meets environmental constraints compared to extended temperature variants.

Drivers, Receivers, Transceivers Part Context

The MAX1487 belongs to the MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487 family of low-power transceivers. Unlike slew-rate-limited models such as the MAX483 or MAX487, the MAX1487 offers higher speed capabilities up to 2.5Mbps. It shares the same pinout and basic functionality as other half-duplex devices in the series but distinguishes itself through its specific electrical characteristics and node capacity.

Drivers, Receivers, Transceivers Replacement Considerations

Direct functional replacements within the same family include MAX1487CSA (SOIC package) and MAX1487CUA (µMAX package). For different temperature grades, MAX1487EPA or MAX1487ESA may be considered if extended ranges are required.