Many appliances such as information personal digital assistants (PDAs) and instrumentation and control applications are use touch-screen interfaces. This is a application notes of using resistive touch screens for human/machine interface. This application notes describes about how to convert the analog inputs into usable digital data, the basics of how resistive touch screens work, resistive touch screens, resistive touch-screen controllers, and touch-screen acquisition flowchart.

This application note is divided into sections as follows :
-Introduction
-Resistive touch screens
-Resistive touch-screen controllers
-Single-ended configuration
-Differential configuration
-Touch-screen settling time
-Difference between single-ended and differential modes
-Touch-screen acquisition flowchart
-Data-averaging algorithm

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