Datasheet Texas Instruments ADS7845EG4 — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | ADS7845 |
| Numero de parte | ADS7845EG4 |
Controlador de pantalla táctil de 5 hilos 16-SSOP -40 a 85
Hojas de datos
Touch Screen Controller datasheet
PDF, 318 Kb, Archivo publicado: sept 27, 2000
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 | 7845E | ADS |
| 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 |
Paramétricos
| Control Interface | SPI |
| Input Type | Differential,Single-Ended |
| Operating Temperature Range | -40 to 85 C |
| Package Group | SSOP |
| Package Size: mm2:W x L | 16SSOP: 19 mm2: 3.9 x 4.9(SSOP) PKG |
| Rating | Catalog |
| SAR ADC Resolution | 12 Bits |
| SAR Sample Rate(Max) | 125 kSPS |
| Supply Voltage (Analog) | 2.7 Max |
| Supply Voltage (I/O VDD) | 2.7 Max |
| Touch Panel | 5-Wire |
| Vref | Ext Int/Ext |
Plan ecológico
| RoHS | Obediente |
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: ADS7845EVM
ADS7845EVM Evaluation Module
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños) - Evaluation Modules & Boards: ADS7845EVM-PDK
ADS7845EVM-PDK Evaluation Module
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
Notas de aplicación
- 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
- Calibration in touch-screen systemsPDF, 169 Kb, Archivo publicado: agosto 10, 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 - 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: ADS7845 (4)
- ADS7845E ADS7845E/2K5 ADS7845E/2K5G4 ADS7845EG4
Clasificación del fabricante
- Semiconductors > Data Converters > Integrated/Special Function Data Converters > Touch Screen Controllers