PCA9516AD,112

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PCA9516AD,112 is an interface-signal buffer, repeater, and splitter. It is a low voltage, low power device that can be used to interface analog and digital signals. Designed to meet the needs of applications such as aerospace, automotive, industrial, medical, and consumer electronics, this device helps extend the reach of particular signals by providing a highly stable, low injection point-of-signal translator.

Device Features

The PCA9516AD,112 is a two-port buffer, repeater, and splitter featuring integrated ESD protection. It provides the level shifting and buffering capability of both input and output ports to ease interface compatibility with the power sensitive applications. It has the ability to maintains data transmission through an isolator for more than 500m for a reliable performance.

The PCA9516AD,112 is also optically isolated that provides greater signal integrity and also is able to withstand hazardous environment. This device has an extremely linear input current-voltage relationship that allows to use it in noise-sensitive applications. It also has a low-power operation, a wide operating temperature range, and it can operate at a frequency of up to 400kHz.

Application Field

The PCA9516AD,112 has a wide range of applications. Its buffering and repeater capabilities make it suitable for twisted pair transmissions, allowing data to remain intact over large distances with minimum interference. Additionally, it also can be used in cases such as isolation in drive controllers and data converters, or even as a buffer between two logic families.

The device is also used in the different sectors such as aerospace, automotive, industrial, medical, and consumer electronics, due to its high-level-shifting capability, and because it can guarantee an extremely linear input current-voltage relationship.

Working Principle

This device works in both directions and it has the ability to drive and receive signals from one end to the other. The PCA9516AD,112 implements a special technique that guarantees a maximum common-mode range resulting in minimal common-mode noise and low injection point.

The power supply of the device is approximately 3V to 4.5V and the output buffer features Schmitt Trigger input which provide a hysteresis settling time that ensures a reliable high-to-low transition when the input swings from a low to high level.

The device also has an intelligent algorithm that enables the input bias current to behave with highest linearity when exposed to different voltages and temperatures. The input bias current is designed so that its value will stay constant over a wide operating temperature range.

The device also has a self-timed bus-hold feature that holds the input at its last state in the case that the input signal is pulled up or pulled down. Bus-hold also serves as a pre-driver to enable a repetitive data to be sent without consuming a lot of energy and it helps to extend the lifetime of the device.

Conclusion

The PCA9516AD,112 is a low-voltage, low-power device that offers a wide range of features such as buffering and repeater capabilities for twisted pair transmissions, a wide operating temperature range, a robust input current-voltage relationship, and support of up to 400kHz operation frequency. Additionally, the device is an industry standard and its application field includes aerospace, automotive, industrial, medical and consumer electronics.

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