Datasheet Texas Instruments ADS7843 — Datenblatt
| Hersteller | Texas Instruments |
| Serie | ADS7843 |
4-Draht-Touchscreen-Controller
Datenblätter
ADS7843: Touch Screen Controller datasheet
PDF, 972 Kb, Revision: B, Datei veröffentlicht: Mar 26, 2002
Auszug aus dem Dokument
Preise
Status
| ADS7843E | ADS7843E/2K5 | ADS7843E/2K5G4 | ADS7843EG4 | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | No | Yes | Yes |
Verpackung
| ADS7843E | ADS7843E/2K5 | ADS7843E/2K5G4 | ADS7843EG4 | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 16 | 16 | 16 | 16 |
| Package Type | DBQ | DBQ | DBQ | DBQ |
| Industry STD Term | SSOP | SSOP | SSOP | SSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 75 | 2500 | 2500 | 75 |
| Carrier | TUBE | LARGE T&R | LARGE T&R | TUBE |
| Device Marking | ADS | ADS | 7843E | ADS |
| Width (mm) | 3.9 | 3.9 | 3.9 | 3.9 |
| Length (mm) | 4.9 | 4.9 | 4.9 | 4.9 |
| Thickness (mm) | 1.5 | 1.5 | 1.5 | 1.5 |
| Pitch (mm) | .64 | .64 | .64 | .64 |
| Max Height (mm) | 1.75 | 1.75 | 1.75 | 1.75 |
| Mechanical Data | Herunterladen | Herunterladen | Herunterladen | Herunterladen |
Öko-Plan
| ADS7843E | ADS7843E/2K5 | ADS7843E/2K5G4 | ADS7843EG4 | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Anwendungshinweise
- How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch ScreenPDF, 271 Kb, Datei veröffentlicht: 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 - ADS7843 Pen InterruptPDF, 48 Kb, Datei veröffentlicht: 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. - Using a touch-screen controller’s auxiliary inputsPDF, 149 Kb, Datei veröffentlicht: Oct 12, 2007
- Touch Screen Controller TipsPDF, 86 Kb, Datei veröffentlicht: 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. - PCB Layout Guideline for TI Resistive TSC DevicesPDF, 144 Kb, Datei veröffentlicht: Oct 4, 2012
- Operation Schemes of Touch Screen ControllersPDF, 846 Kb, Datei veröffentlicht: May 21, 2007
- Reducing Analog Input Noise in Touch Screen Systems (Rev. A)PDF, 535 Kb, Revision: A, Datei veröffentlicht: 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 - Calibration in touch-screen systemsPDF, 169 Kb, Datei veröffentlicht: Aug 10, 2007
- Q4 2007 Issue Analog Applications Journal (Rev. A)PDF, 316 Kb, Revision: A, Datei veröffentlicht: Nov 14, 2007
- Apply TI TSC for Various and Multiple FunctionsPDF, 316 Kb, Datei veröffentlicht: 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 - Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revision: A, Datei veröffentlicht: May 18, 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revision: B, Datei veröffentlicht: 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, Revision: A, Datei veröffentlicht: Apr 16, 2015
Modellreihe
Serie: ADS7843 (4)
Herstellerklassifikation
- Semiconductors> Data Converters> Integrated/Special Function Data Converters> Touch Screen Controllers