Product Summary

The SP491EN is a Full Duplex RS-485 Transceiver which features ±200mV receiver input sensitivity, over wide common mode range. The SP491EN is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and industrial temperature ranges.

Parametrics

SP491EN absolute maximum ratings: (1)VCC: +7V; (2)Input Voltages-Drivers: 0.5V to (VCC+0.5V); (3)Input Voltages-Receivers: ±14V; (4)Output Voltages-Drivers:±14V; (5)Output Voltages-Receivers: -0.5V to (VCC+0.5V); (6)Storage Temperature: -65℃to +150℃; (7)Power Dissipation: 1000mW.

Features

SP491EN features: (1)+5V Only; (2)Low Power BiCMOS; (3)Driver/Receiver Enable; (4)RS-485 and RS-422 Drivers/Receivers; (5)Pin Compatible with LTC491 and SN75180.

Diagrams

SP491EN BLOCK DIAGRAM

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SP491EN-L
SP491EN-L

Exar

RS-485 Interface IC RS485 5000 kbps temp -40C to 85C

Data Sheet

0-1: $1.16
1-25: $0.92
25-100: $0.79
100-250: $0.66
SP491EN-L/TR
SP491EN-L/TR

Exar

RS-485 Interface IC Full Duplex RS-485 s

Data Sheet

0-1820: $0.48
1820-2500: $0.44