PDF, 271 Kb, 档案已发布: Mar 27, 2006
This application report implements a Texas Instruments 4-wire touch screen controller (TSC) to control an 8-wire touch screen and discusses features and performances for such applications.Texas Instruments (TI) provides various TSC devices for the 4-wire or 5-wire touch screens (TS). A TI 4-wire TSC device, such as the ADS7843, TSC2003, or TSC2046, is ideal for controlling a 4-wire TS, but it
PDF, 48 Kb, 档案已发布: Sep 27, 2000
The ADS7843 is a 12-bit sampling analog-to-digital converter (ADC) used to drive 4-wire touch-screens to serial interfaces by ratiometrically converting two differential input signals. The ADS7843 also produces an accurate output with the first conversion cycle once powered up.
PDF, 149 Kb, 档案已发布: Oct 12, 2007
PDF, 86 Kb, 档案已发布: Sep 27, 2000
The ADS7843, ADS7845, and the new ADS7846 converters all are designed for specific touch screen applications. Applications using these devices can benefit greatly from the tips presented in this application bulletin. Most of the examples discuss the ADS7843, but the techniques shown are applicable to all of the devices.
PDF, 144 Kb, 档案已发布: Oct 4, 2012
PDF, 846 Kb, 档案已发布: May 21, 2007
PDF, 535 Kb, 修订版: A, 档案已发布: Sep 15, 2007
This application report discusses some common methods for reducing noise in the analog input circuitry of a resistive touch screen controller. In terms of hardware design, PCB layout and grounding are critical; the additional noise-decoupling capacitor built into a touch screen controller input pin may also help. On the software side, several simple, widely-applied filtering algorithms are present
PDF, 169 Kb, 档案已发布: Aug 10, 2007
PDF, 316 Kb, 修订版: A, 档案已发布: Nov 14, 2007
PDF, 316 Kb, 档案已发布: Dec 11, 2006
This application report presents several examples showing how a touch screen controller (TSC) from Texas Instruments provides a variety of functions such as graphs, scroll bars, pressure buttons, and analog dials. A simple resistive TSC can be used to achieve all of these functions as long as they are not activated simultaneously. This application report demonstrates a few simple examples how th
PDF, 69 Kb, 修订版: A, 档案已发布: May 18, 2015
PDF, 425 Kb, 修订版: B, 档案已发布: Oct 9, 2011
This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference.
PDF, 132 Kb, 修订版: A, 档案已发布: Apr 16, 2015
