MAX1490EAEPG

Product Summary

The MAX1490EAEPG is a complete, electrically isolated, RS-485/RS-422 data communications interface solution 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 MAX1490EAEPG drivers slew rate is not limited, allowing transmission rates up to 2.5Mbps. The MAX1490EAEPG is designed for half-duplex communication, while the MAX1490EAEPG features full-duplex communication.

Parametrics

MAX1490EAEPG absolute maximum ratings: (1)With Respect to GND; (2)Supply Voltage (VCC_): -0.3V to +6V; (3)Control Input Voltage (SD, FS): -0.3V to (VCC_ + 0.3V); (4)Receiver Output Voltage (RO, RO): -0.3V to (VCC_ + 0.3V); (5)Output Switch Voltage (D1, D2): +12V; (6)With Respect to ISO COM_; (7)Control Input Voltage (ISO DE_): -0.3V to (ISO VCC_ + 0.3V); (8)Driver Input Voltage (ISO DI_): -0.3V to (ISO VCC_ + 0.3V); (9)Receiver Output Voltage (ISO RO_): -0.3V to (ISO VCC_ + 0.3V); (10)Driver Output Voltage (A, B, Y, Z): -8V to +12.5V; (11)Receiver Input Voltage (A, B): -8V to +12.5V; (12)LED Forward Current (DI, DE, ISO RO LED): 50mA; (13)Continuous Power Dissipation (TA = +70℃), 24-Pin Plastic DIP (derate 8.7mW℃ above +70℃): 696mW; (14)28-Pin Plastic DIP (derate 9.09mW/℃ above +70℃): 727mW; (15)Operating Temperature Ranges: MAX1480E_EPI/MAX1490E_EPI: -40℃ to +85℃; (16)Storage Temperature Range: -65℃ to +150℃; (17)Lead Temperature (soldering, 10s): +300℃.

Features

MAX1490EAEPG features: (1)Isolated Data Interface, Guaranteed to 1260VRMS (1min); (2)±15kV ESD Protection on I/O Pins; (3)Slew-Rate Limited for Errorless Data Transmission (MAX1480EC/MAX1490EB); (4)High-Speed, Isolated, 2.5Mbps RS-485/RS-422 Interface (MAX1480EA/MAX1490EA); (5)Full-Duplex Data Communication (MAX1490EA/MAX1490EB); (6)Single +5V Supply; (7)Current Limiting and Thermal Shutdown for Driver Overload Protection; (8)Standard 0.6in DIP Packages : 24-Pin DIP.

Diagrams