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MAX1480E - (MAX1480E / MAX1490E) Isolated RS-485/RS-422

General Description

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB are complete, electrically isolated, RS-485/RS-422 data communications interface solutions in a hybrid microcircuit.

The RS-485/RS-422 I/O pins are protected against ±15kV electrostatic discharge (ESD) shocks, without latchup.

Key Features

  • o Isolated Data Interface, Guaranteed to 1260VRMS (1min) o ±15kV ESD Protection on I/O Pins o Slew-Rate Limited for Errorless Data Transmission (MAX1480EC/MAX1490EB) o High-Speed, Isolated, 2.5Mbps RS-485/RS-422 Interface (MAX1480EA/MAX1490EA) o Full-Duplex Data Communication (MAX1490EA/MAX1490EB) o Single +5V Supply o Current Limiting and Thermal Shutdown for Driver Overload Protection o Standard 0.6in DIP Packages 28-Pin DIP (MAX1480EA/MAX1480EC) 24-Pin DIP (MAX1490EA/MAX1490EB) MAX1480E/MAX1.

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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.

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19-1940; Rev 0; 4/01 ±15kV ESD-Protected, Isolated RS-485/RS-422 Data Interfaces _________________General Description The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB are complete, electrically isolated, RS-485/RS-422 data communications interface solutions in a hybrid microcircuit. The RS-485/RS-422 I/O pins are protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. 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 MAX1480EC/MAX1490EB feature reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 160kbps.