LTC487ISW#PBF

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The LTC487ISW#PBF is a Multichannel RS-485/RS-422 transceiver designed to meet the requirements of industrial applications. This transceiver is designed to allow the user to communicate over point-to-multipoint networks with reliable, fault tolerant, bi-directional data communications. This transceiver operates from 2.7V to 5.5V over temperatures from -40°C to 85°C.

The LTC487ISW#PBF is a fully compliant, low power, multi-channel, RS-485/RS-422 transceiver. It has five integrated half-duplex signal channels, and each of the five channels is capable of providing up to 100 mA of current at 5 V and 10 mA of current at 2.7V. The LTC487ISW#PBF provides high-level RS-485 and RS-422 data communication over distances of up to 5000 feet (1.5 km). It also supports spread spectrum and software selectable speed on all of its signal channels.

The LTC487ISW#PBF includes a wide range of features to ensure that it performs well in industrial and other critical applications. These features include a low noise and wide common mode input range, low receiver hysteresis, integrated 120Ω termination resistors, external shutdown, permanent and soft enabling functions, voltage and current feedback protection, and integrated ESD and short circuit protection.

In terms of application field, the LTC487ISW#PBF can be widely used in intelligent home appliances, smart factories and other industries that require reliable bi-directional data communications. It can also be used in medical equipment, security systems, data acquisition systems, industrial control and instrumentation.

The working principle of the LTC487ISW#PBF is based on the RS-485/RS-422 electrical standards, which define the electrical characteristics and protocol of a serial bus. RS-485/RS-422 is a differential signaling system that transmits a pair of digital signals over a pair of wires (known as the A line and B line). In order for communications to occur, the devices must each have identical network configuration settings. The LTC487ISW#PB enables each transmitter on the bus to control the communication system by controlling the differential signals on the A and B lines.

The LTC487ISW#PBF is controlled via the Enable leads. When the Enable pin is taken high, the transceivers enter an enabled state, allowing transmitters connected to the bus to transmit data. When the Enable pin is taken low, the transceiver is disabled and all transmitter outputs go high impedance. The LTC487ISW#PBF is also capable of software enable/disable control whereby each transceiver can be enabled/disabled individually.

The LTC487ISW#PBF has advanced safety features built into its device, including permanent and soft enabling functions, voltage and current feedback protection, and integrated ESD and short circuit protection. With these features, the device is able to better protect itself and the system in the event of power surges or faults. The device is also able to monitor the system for temperature, noise, and temperature de-rating, which ensures a safe and reliable operation.

In conclusion, the LTC487ISW#PBF is an effective and reliable RS-485/RS-422 transceiver designed for use in industrial and other critical applications. It supports high data rates and offers a range of features that make it well suited to the needs of most industrial applications. It is also capable of providing excellent signal integrity and robust protection against ESD and short circuit conditions.

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