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Product Details

The SN75174 is a monolithic quadruple differential line driver with 3-state outputs. It is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11. The device is optimized for balanced multipoint bus transmission at rates up to 4 megabaud. Each driver features wide positive and negative common-mode output voltage ranges making it suitable for party-line applications in noisy environments. 

The SN75174 provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximately 150°C. This device offers optimum performance when used with the SN75173 or SN75175 quadruple differential line receivers. 

The SN75174 is characterized for operation from 0°C to 70°C.

Products Features

? Meets or exceeds the requirements of ANSI standards EIA/TIA-422-B and RS-485 and ITU recommendation V.11. 

? Designed for multipoint transmission on long bus lines in noisy environments 

? 3-state outputs 

? Common-mode output voltage range of –7V to 12V 

? Active-high enable 

? Thermal shutdown protection 

? Positive- and negative-current limiting 

? Operates from single 5V supply 

? Low power requirements 

? Functionally interchangeable with MC3487

Products Applications

? Chemical and gas sensors 

? Field transmitters: temperature sensors and pressure sensors 

? Motor drives: brushless DC and brushed DC 

? Temperature sensors and controllers using modbus

Specifications

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