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.

Features

♦ Isolated Data Interface, Guaranteed to 1260VRMS (1min)

♦ ±15kV ESD Protection on I/O Pins

♦ Slew-Rate Limited for Errorless Data Transmission (MAX1480EC/MAX1490EB)

♦ High-Speed, Isolated, 2.5Mbps RS-485/RS-422 Interface (MAX1480EA/MAX1490EA)

♦ Full-Duplex Data Communication (MAX1490EA/MAX1490EB)

♦ Single +5V Supply

♦ Current Limiting and Thermal Shutdown for Driver Overload Protection

♦ Standard 0.6in DIP Packages

    28-Pin DIP (MAX1480EA/MAX1480EC)

    24-Pin DIP (MAX1490EA/MAX1490EB)