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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