SN75179BDR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Full
Receiver Hysteresis:	50mV
Data Rate:	--
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	SN75179

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Introduction

SN75179BDR is a quad differential line driver IC from Texas Instruments, and is one of the many components used in industrial, medical and aerospace applications. This device is designed to serve as a single-chip line driver for balanced TTL line systems. It is specifically designed for AC coupling of balanced line TTL systems.The SN75179BDR is characterized by features such as low power, high common-mode rejection, and a wide variety of operating temperature ranges, making it a highly-versatile IC. It is also available in various package styles, making it even more suitable for different kinds of applications.

Application Fields

The SN75179BDR can be used in a number of fields, due to its versatility and availability in various packages. Some of the more common application fields which the SN75179BDR serves in are listed below:

• Industrial Control Systems
• Medical Devices
• Avionics
• Robotics
• Automotive Electronics
• Instrumentation and Measurement Equipment
• High Speed Data Transmission

The SN75179BDR is also used in applications where high speed data transmission is required, due to its low power and excellent common-mode rejection.

Working Principle

The SN75179BDR is designed to serve as a line driver for balanced TTL line systems. It has four differential drivers, each driven by its own set of inputs. The inputs and drivers are separated into two groups of two, with the internals of each group essentially the same. Each group of drivers is driven by the same differential pair of inputs, with the inputs being separated into "true" and "complement" pairs. The outputs of the drivers are connected by discrete insulation, and are driven by separate external power supplies. This ensures that the common-mode signals are completely isolated from the differentially driven TTL signals. The differential signals are summed using resistors, and the common-mode signals are prevented from passing from one side to the other by a differential amplifier stage. The outputs of the drivers are connected to the inputs of a four-channel analog multiplexer, which serves as an isolation device for the drivers.

Conclusion

The SN75179BDR is a versatile IC which is used in a variety of applications. It is characterized by low power and excellent common-mode rejection, making it suitable for high speed data transmission. With its availability in various package styles, it is suitable for many different industrial, medical and aerospace applications.

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