MAX485CPA in MAX485 / MAX13487 RS-485 Family
The MAX485CPA family, produced by Analog Devices (formerly Maxim Integrated), consists of low-power transceivers for RS-485 and RS-422 communication. These components are industry-standard ICs designed for half-duplex bi-directional data transmission over differential lines. They operate from a single +5V supply and feature a driver that is short-circuit current limited and protected against excessive power dissipation by thermal shutdown circuitry. The series is particularly valued for its balance of low power consumption and high reliability in industrial environments.
Variants in This Sub-Family
Variants within the MAX485 sub-family primarily differ based on temperature ratings and packaging. The 'C' suffix denotes a commercial temperature range (0 to 70C), while 'E' variants handle extended industrial ranges (-40 to +85C). The 'PA' designation specifically refers to the 8-pin Plastic DIP package, whereas 'SA' or 'ESA' variants are available in SOIC packages for surface-mount applications, maintaining the same electrical performance.
