AD7873ARQZ-REEL

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The AD7873ARQZ-REEL is a cost-effective, high performance I2C/SPI touch controller from Analog Devices that has simplified the design of many touch-based systems. The device has been designed to meet the requirements of industrial, aerospace, and medical applications. It features a low power consumption, high EMI immunity, excellent thermal sensing accuracy, and a wide range of operating temperatures. Additionally, the device comes with an advanced chip-on-board packaging technology, which helps in reducing the board space required.

The AD7873ARQZ-REEL is a powerful controller that can be used to convert raw touch input into user-defined commands that can then be processed by the host processor. The touch controller has an inbuilt charge transfer path that consists of two analog input channels, a comparator, and a digital serial interface to the host processor. The two analog input channels measure the current changes caused by the user\'s touch and the comparator then compares these changes to a certain threshold level.

Once the threshold level is breached, a logic signal is generated which is then converted to a digital signal using the digital serial interface and sent to the host processor. The host processor then interprets the signal and generates an output accordingly. This feature of the AD7873ARQZ-REEL makes it an ideal solution for various applications such as touch screen controllers, game controllers, automotive navigation systems, and home appliances.

The AD7873ARQZ-REEL also provides a range of other advanced features such as an on-chip oscillator, temperature sensors, a digital calibration algorithm, and a user-definable gesture recognition engine. The device supports multiple I2C and SPI bus speeds, so it is compatible with a wide range of microcontrollers. Additionally, the device supports both touch and proximity sensing, making it suitable for a variety of applications. It also features an adjustable refresh rate and supports up to 16 buttons.

In addition to these features, the AD7873ARQZ-REEL offers a wide variety of performance and reliability features such as low operating power, high ESD protection, temperature compensation, and fast sleep mode supports. It also features a quick response times with a low jitter, ensuring better accuracy in the detection of a touch. The device has an on-board temperature sensor that provides additional thermal protection by automatically shutting off the touch controller at a pre-defined temperature.

The AD7873ARQZ-REEL is optimized to reduce design time and cost, since it contains all of the components necessary for a complete touch-screen control system on a single chip. Its advanced and comprehensive suite of features makes it an ideal solution for various applications. From small industrial controllers to sophisticated medical and automotive applications, the AD7873ARQZ-REEL provides accurate, reliable, and cost-effective touch-screen control.

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