Datasheet Texas Instruments ADS7843E — Ficha de datos
Fabricante | Texas Instruments |
Serie | ADS7843 |
Numero de parte | ADS7843E |
Controlador de pantalla táctil de 4 hilos 16-SSOP -40 a 85
Hojas de datos
ADS7843: Touch Screen Controller datasheet
PDF, 972 Kb, Revisión: B, Archivo publicado: marzo 26, 2002
Extracto del documento
Precios
Estado
Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
Disponibilidad de muestra del fabricante | Sí |
Embalaje
Pin | 16 | 16 |
Package Type | DBQ | DBQ |
Industry STD Term | SSOP | SSOP |
JEDEC Code | R-PDSO-G | R-PDSO-G |
Package QTY | 75 | 75 |
Carrier | TUBE | TUBE |
Device Marking | ADS | 7843E |
Width (mm) | 3.9 | 3.9 |
Length (mm) | 4.9 | 4.9 |
Thickness (mm) | 1.5 | 1.5 |
Pitch (mm) | .64 | .64 |
Max Height (mm) | 1.75 | 1.75 |
Mechanical Data | Descargar | Descargar |
Plan ecológico
RoHS | Obediente |
Notas de aplicación
- How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch ScreenPDF, 271 Kb, Archivo publicado: marzo 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 - ADS7843 Pen InterruptPDF, 48 Kb, Archivo publicado: sept 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. - Using a touch-screen controller’s auxiliary inputsPDF, 149 Kb, Archivo publicado: oct 12, 2007
- Touch Screen Controller TipsPDF, 86 Kb, Archivo publicado: sept 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. - PCB Layout Guideline for TI Resistive TSC DevicesPDF, 144 Kb, Archivo publicado: oct 4, 2012
- Operation Schemes of Touch Screen ControllersPDF, 846 Kb, Archivo publicado: mayo 21, 2007
- Reducing Analog Input Noise in Touch Screen Systems (Rev. A)PDF, 535 Kb, Revisión: A, Archivo publicado: sept 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 - Calibration in touch-screen systemsPDF, 169 Kb, Archivo publicado: agosto 10, 2007
- Q4 2007 Issue Analog Applications Journal (Rev. A)PDF, 316 Kb, Revisión: A, Archivo publicado: nov 14, 2007
- Apply TI TSC for Various and Multiple FunctionsPDF, 316 Kb, Archivo publicado: dic 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 - Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revisión: A, Archivo publicado: mayo 18, 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revisión: B, Archivo publicado: 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. - Principles of Data Acquisition and Conversion (Rev. A)PDF, 132 Kb, Revisión: A, Archivo publicado: abr 16, 2015
Linea modelo
Serie: ADS7843 (4)
- ADS7843E ADS7843E/2K5 ADS7843E/2K5G4 ADS7843EG4
Clasificación del fabricante
- Semiconductors > Data Converters > Integrated/Special Function Data Converters > Touch Screen Controllers