AD7873BRQZ-REEL7 Datasheet/PDFAD7873BRQZ-REEL7 is a touch screen controller from the industry leader Analog Devices Inc. The AD7873BRQZ-REEL7 offers superior performance in data acquisition and touch control applications in consumer and industrial products. With its state-of-the-art thermal modulation, noise suppression and linearity compensation, this touch screen controller solutions is ideal for demanding applications.
The AD7873BRQZ-REEL7 Touch Controller supports a variety of general-purpose and application-specific features including switch/capacitive control and tactile feedback control. Its sensible and accurate touchscreen control enables it to operate reliably in a wide range of temperatures and lighting conditions. The AD7873BRQZ-REEL7 also provides 2-4-wire communication interface for data transmission and a dedicated power interface for powering an external capacitive sense array or switch matrix.
The AD7873BRQZ-REEL7 helps to reduce the power consumption of the system by using its low-power, low-noise Delta-Sigma ADC which helps to convert the signals from the capacitive sense array into digital information. With this information, the controller can accurately detect touches in as fast as 2 ms. By implementing its on-chip voltage regulators, the controller also has the ability to efficiently deliver power to the capacitive sense array, thus reducing power consumption.
In addition to its low power feature, the AD7873BRQZ-REEL7® also offers a range of features to enhance tactility and linearity. Its unique design allows the controller to provide more accurate tactile feedback by maintaining a consistent level of contact force between the touch surface and the user\'s finger while enabling sophisticated noise suppression algorithms to reduce the effect of electrical crosstalk. Furthermore, its special linearity compensation prevents color shifts when linearizing large, complex or non-uniform capacitive sense arrays.
To summarize, the AD7873BRQZ-REEL7 is an excellent data acquisition and touch-control solution for products that require superior performance in a small form factor. Its thermal modulation, noise suppression and linearity compensation make it a highly capable and reliable touch screen controller for high-end applications. Furthermore, its low power and low noise Delta-Sigma ADC help to ensure a highly precise and accurate touch experience.