AD7873ACPZ

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The AD7873ACPZ is a highly integrated capacitive touch screen controller ideal for use in a wide range of applications. With a variety of touch screen configurations and wide measurement range, it offers a simple and efficient solution for capturing touch data. This article will discuss the applications and working principle of the AD7873ACPZ to give readers a better understanding of the device.

The AD7873ACPZ is designed to be used in combination with self-capacitance and mutual-capacitance touch screen systems. Self-capacitance Touchscreens use a single-sided electrical field to sense user input while Mutual-capacitance Touchscreens use a two-sided electrical field, making them more sensitive than self-capacitance displays. The AD7873ACPZ provides both solutions making it the ideal device for creative solutions.

The device can be used in applications including phones, tablets, automotive touchscreens, and industrial displays. It can measure C-type capacitance, AC-coupling approach, AC-conductivity approaches, Self-capacitance, 2-D Self-capacitance, Mutual-capacitance, 1 D Self-capacitance, and 2 D Self-capacitance. This wide range of tactile sensing makes it ideal for a variety of use cases.

The AD7873ACPZ is designed with a wide measurement range of 28 to 3000 pF, making it suitable for sensing thick cables and small pins. This wide range also enables the device to detect intricate patterns and small signals. In addition to this, it provides a high level of accuracy due to its low output noise, excellent linearity, and low power consumption.

The working principle of the AD7873ACPZ is based on capacitive sensing. This type of sensing is based on the principle of capacitance, which is the ability of an electrical circuit to store energy when a voltage is applied to two or more conductors. The AD7873ACPZ measures the change in capacitance over time and then converts this into a digital output. The device measures both small changes in capacitance and the difference between two capacitive signals.

The AD7873ACPZ also uses a number of advanced technologies including EnerSense, which is an intelligent algorithm for minimizing leakage currents and reducing false touches. It also incorporates Optocoupling, which enables the device to measure AC signals without interference and provides higher accuracy. Furthermore, the device features drift compensation, which compensates for any change in capacitance due to temperature or humidity changes.

In summary, the AD7873ACPZ is a highly integrated capacitive touch screen controller which is ideal for use in a wide range of applications. With its wide measurement range and advanced technologies, it provides superior performance and accuracy. It is suitable for use in both self-capacitance and mutual-capacitance systems and it is an excellent choice for creative solutions.

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