LTC491IS#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Full
Receiver Hysteresis:	70mV
Data Rate:	--
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	14-SOIC
Base Part Number:	LTC491

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Introduction to LTC491IS#TRPBF

LTC491IS#TRPBF is a 4-pin, low-power, multi-channel RS-485 physical layer interface transmitter and receiver. This device supports a wide range of applications, from low-speed industrial control to high-speed commercial applications. Its low supply current and small package size make it an ideal choice for many different types of applications.

Application Fields of LTC491IS#TRPBF

The LTC491IS#TRPBF is specifically designed for applications requiring high channel count, high data rate, and low-voltage operation. It is suitable for low-power, long-range applications in industrial, automotive, and consumer industries. This device can be used in systems that require multiple 2-wire buses, such as Ethernet, CANbus, and RS-485. Additionally, it is suitable for use in industrial automation, remote data acquisition, and remote monitoring systems.

Working Principle of LTC491IS#TRPBF

The LTC491IS#TRPBF operates in half-duplex operation, which allows for simultaneous transmission and reception of serial data on any one of its channels. The device has a receiver input that is driven by the data bus, a transmitter output that drives the bus, and a control line input to the device. The device is powered by a single +3V to +5.25V supply and supports both RS-485 and RS-422 levels of operation. The device features integrated ESD protection and is enabled by a single logic-level control signal.The device can transmit data in either asynchronous or synchronous modes. In asynchronous mode, the device operates in a master-slave configuration and is capable of transmitting up to 64 bytes of data. In synchronous mode, the device transmits and receives data continually in a "burst" mode and is capable of transmitting up to 4096 bytes of data.The LTC491IS#TRPBF has a small footprint, low power consumption, and high performance. The device also supports a wide range of data rates and supports low-voltage operation. The device is designed to function without fault protection, eliminating the need for external circuitry.

Conclusion

The LTC491IS#TRPBF is a compact, low-power RS-485 physical layer interface device. It is suitable for applications requiring high channel count, high data rate, and low-voltage operation. The device features integrated ESD protection, fast switching between transmit and receive modes in synchronous or asynchronous data modes, and supports both RS-485 and RS-422 levels of operation. The device offers a small footprint, low power consumption, and high performance.

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