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MAX1490B - Complete / Isolated RS-485/RS-422 Data Interface

Download the MAX1490B datasheet PDF. This datasheet also covers the MAX1490A variant, as both devices belong to the same complete / isolated rs-485/rs-422 data interface family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1480A/MAX1480B/MAX1480C/MAX1490A/ MAX1490B are complete, electrically isolated, RS-485/ RS-422 data-communications interface solutions in a hybrid microcircuit.

Transceivers, optocouplers, and a transformer provide a complete interface in a standard DIP package.

Key Features

  • For Integrated ESD Protection MAX1480E/MAX1490E: ±15kV ESD-Protected, Isolated RS-485/RS-422 Data Interfaces.
  • For Space-Constrained.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1490A-Maxim.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MAX14900E Octal Power Switch Maxim Integrated
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MAX14912 Switch/Push-Pull Driver Maxim Integrated
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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1490A Complete / Isolated RS-485/RS-422 Data Interface
MAX149 +2.7V to +5.25V / Low-Power / 8-Channel / Serial 10-Bit ADCs
MAX1491 3.5- and 4.5-Digit / Single-Chip ADCs
MAX1492 Single-Chip ADCs
MAX1493 3.5- and 4.5-Digit / Single-Chip ADCs

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-0259; Rev 5; 5/05 Complete, Isolated RS-485/RS-422 Data Interface _________________General Description The MAX1480A/MAX1480B/MAX1480C/MAX1490A/ MAX1490B are complete, electrically isolated, RS-485/ RS-422 data-communications interface solutions in a hybrid microcircuit. Transceivers, optocouplers, and a transformer provide a complete interface in a standard DIP package. A single +5V supply on the logic side powers both sides of the interface. The MAX1480B/MAX1480C/MAX1490B feature reducedslew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The MAX1480A/MAX1490A driver slew rate is not limited, allowing transmission rates up to 2.5Mbps.