Datasheet Texas Instruments ADS7845E — Datenblatt
| Hersteller | Texas Instruments |
| Serie | ADS7845 |
| Artikelnummer | ADS7845E |
5-Draht-Touchscreen-Controller 16-SSOP -40 bis 85
Datenblätter
Touch Screen Controller datasheet
PDF, 318 Kb, Datei veröffentlicht: Sep 27, 2000
Auszug aus dem Dokument
Preise
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Verpackung
| 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 | 7845E |
| 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 | Herunterladen | Herunterladen |
Parameter
| 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 |
Öko-Plan
| RoHS | Compliant |
Design Kits und Evaluierungsmodule
- Evaluation Modules & Boards: ADS7845EVM
ADS7845EVM Evaluation Module
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: ADS7845EVM-PDK
ADS7845EVM-PDK Evaluation Module
Lifecycle Status: Active (Recommended for new designs)
Anwendungshinweise
- 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
- Calibration in touch-screen systemsPDF, 169 Kb, Datei veröffentlicht: Aug 10, 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 - 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: ADS7845 (4)
- ADS7845E ADS7845E/2K5 ADS7845E/2K5G4 ADS7845EG4
Herstellerklassifikation
- Semiconductors > Data Converters > Integrated/Special Function Data Converters > Touch Screen Controllers