CPT213B-A01-GMR

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Capacitive touch sensing technology has been develop for a long time, and its application fields are wide and varied, ranging from simple point-and-click mouse, to automatically adjusting the screen brightness when the environment change. Currently the most widely used capacitive touch technology is the CPT213B-A01-GMR series.

CPT213B-A01-GMR, features with its small package size, is a low-power type capacitive touch sensing IC, generally used in small size applications, such as learning and teaching tools, toys and click wheels with a low-power interrupt function. The principle of operation of this type of sensing technology is based on an electrostatic force field generated by the loop antenna design of the CPT213B-A01-GMR and the variation caused by a dielectric material (i.e., the finger).

The activating of the sensing technology requires two loops 7 mm apart, one loop activated by the finger, and one loop to provide power (VCC) and the ADC value of the capacitive voltage. By using the two loops for comparison, CPT213B-A01-GMR can determine whether an object is touching the pad, and thus can accurately report the displacement. If a higher sensitivity is required, additional touches on the pad itself can be used as inputs to adjust the sensitivity.

CPT213B-A01-GMR features with a very high level of sensitivity and response time, providing a smooth and responsive touch effect. It also has a high immunity to interference. The use of infrared technology provides a neat, unobstructed touch pad, eliminating the need for any mechanical overlay. In addition, it has temperature compensation capability to maintain specific performance requirements over different operating temperature range.

The CPT213B-A01-GMR capacitive touch sensing IC is also low-power, making it suitable for many applications where power consumption is critical. It can be used with battery-powered and energy harvesting systems, as well as in automotive, medical and mobile devices, applications where the power reduction of the IC is an important factor.

Overall, CPT213B-A01-GMR provides a robust touch sensing solution for many applications. It has a wide range of features and advantages, providing a high level of performance and power efficiency. Moreover, its small size makes it suitable for use in a wide range of applications, which are usually space-constrained. It is definitely the perfect choice for designer who required a high performance and low power usage.

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