SN75179B DIFFERENTIAL DRIVER AND RECEIVER PAIRS

SLLS003D - OCTOBER 1985 - REVISED MAY 1995

features

Meet or Exceed the Requirements of ANSI Standards EIA/TIA-422-B, RS-485 and ITU Recommendation V.11
Bus Voltage Range . . . -7 V to 12 V
Positive- and Negative-Current Limiting
Driver Output Capability . . . 60 mA Max
Driver Thermal-Shutdown Protection
Receiver Input Impedance . . . 12 k Min
Receiver Input Sensitivity . . . ±200 mV
Receiver Input Hysteresis . . . 50 mV Typ
Operate From Single 5-V Supply
Low Power Requirements

description

The SN75179B is a differential driver and receiver pair are monolithic integrated devices designed for balanced transmission-line applications and meet ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11. They are designed to improve the performance of full-duplex data communications over long bus lines.

The SN75179B driver output provides limiting for both positive and negative currents. The receiver features high input impedance, input hysteresis for increased noise immunity, and input sensitivity of ±200 mV over a common-mode input voltage range of -7 V to 12 V. The driver provides thermal shutdown for protection from line fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. The SN75179B is designed to drive current loads of up to 60 mA maximum.

The SN75179B is characterized for operation from 0°C to 70°C.

Title: DIFFERENTIAL DRIVER AND RECEIVER PAIR
Product Family: TRANSMITTERS AND RECEIVERS
Device Functionality: TRANSMITTERS/RECEIVERS
Orderable Devices: SN75179BD, SN75179BDR, SN75179BP

View the complete PDF datasheet: slls003d.pdf (141 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN75179B

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