SP207ECA-L/TR

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SP207ECA-L/TR is a product developed and manufactured by Exar Corporation, and it is a single channel line driver with differential inputs and outputs. This device has wide applications in various fields such as automotive, industrial control, computer, whitegoods and more. The device is commonly used to drive both fusional and differential data buses, analog signals, and inductive loads like relays and solenoids. It also features a fail-safe feature that ensures the output always remains in a logic high or low state in case the inputs become open circuit or float.

Features

The major features that set this device apart from others include its wide supply voltage range, low power consumption, high speed capability, high data rate capability, and built-in protection features. The supply voltage of this device ranges from 3V to 5.5V, providing compatibility with a wide range of applications demanding different voltage. The voltage range also helps reduce EMI by extinguishing the high-frequency signals due to the low impedance of the supply voltage. This device also has a maximum output swing of 600mV, making it suitable for applications demanding high-voltage output with less power dissipation. The quiescent power consumption of the device is only 3.2mW and the data rate is up to 10Mbps, making it suitable for applications demanding higher data rates.

Applications

The SP207ECA-L/TR is an ideal choice for driving and switching applications that require either high-speed or low-speed data communications. The device is commonly used to switch inductive loads, such as relays and solenoids, to control power in automotive and industrial applications. The built-in protection features also make it an ideal choice for applications demanding high levels of reliability, such as whitegoods and computer systems. The device is also suitable for transmitting low-power analog signals due to the low power dissipation.

Working principle

The SP207ECA-L/TR uses differential inputs and outputs, meaning the input and output lines are connected in pairs through a common ground connection. The differential inputs control the level of the output signals, and the differential outputs ensure that the data is transferred accurately over long distances. The device uses a combination of a current source, resistive elements, and a comparator to interface the input and output signals. The current source ensures that the voltage level at the output is kept constant and the comparator is used to compare the current source voltage to the incoming data. When the incoming data exceeds the reference voltage, the output is driven high, and when it is below the reference voltage, the output is driven low.

Conclusion

The SP207ECA-L/TR is a versatile device suitable for many different applications demanding either high- or low-speed communications. Its wide supply voltage range, low power consumption, and built-in protection features make it an ideal choice for applications demanding reliability. The device is commonly used to switch inductive loads and to transmit analog signals, and its combination of a current source, resistive elements, and comparator ensure a reliable and accurate transmission of data. The device is also able to drive different fusional and differential data buses, and its fail-safe feature ensures the outputs always remain in a logic high or low state in case the inputs become open circuit or float.

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