Datasheet Texas Instruments ADS7846
| Manufacturer | Texas Instruments |
| Series | ADS7846 |
4-wire Touch Screen Controller
Datasheets
Touch-Screen Controller datasheet
PDF, 1.5 Mb, Revision: H, File published: Jan 27, 2005
Extract from the document
Prices
Status
| ADS7846E | ADS7846E/2K5 | ADS7846E/2K5G4 | ADS7846EG4 | ADS7846IRGVT | ADS7846IRGVTG4 | ADS7846N | ADS7846N/2K5 | ADS7846N/2K5G4 | ADS7846NG4 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | 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 | Yes | Yes | Yes | No | Yes | No | No | Yes | Yes |
Packaging
| ADS7846E | ADS7846E/2K5 | ADS7846E/2K5G4 | ADS7846EG4 | ADS7846IRGVT | ADS7846IRGVTG4 | ADS7846N | ADS7846N/2K5 | ADS7846N/2K5G4 | ADS7846NG4 | |
|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Pin | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Package Type | DBQ | DBQ | DBQ | DBQ | RGV | RGV | PW | PW | PW | PW |
| Industry STD Term | SSOP | SSOP | SSOP | SSOP | VQFN | VQFN | TSSOP | TSSOP | TSSOP | TSSOP |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | S-PQFP-N | S-PQFP-N | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 75 | 2500 | 2500 | 75 | 250 | 250 | 90 | 2500 | 2500 | 90 |
| Carrier | TUBE | LARGE T&R | LARGE T&R | TUBE | SMALL T&R | SMALL T&R | TUBE | LARGE T&R | LARGE T&R | TUBE |
| Device Marking | ADS | 7846E | ADS | ADS | ADS | ADS | 7846N | 7846N | 7846N | 7846N |
| Width (mm) | 3.9 | 3.9 | 3.9 | 3.9 | 4 | 4 | 4.4 | 4.4 | 4.4 | 4.4 |
| Length (mm) | 4.9 | 4.9 | 4.9 | 4.9 | 4 | 4 | 5 | 5 | 5 | 5 |
| Thickness (mm) | 1.5 | 1.5 | 1.5 | 1.5 | .9 | .9 | 1 | 1 | 1 | 1 |
| Pitch (mm) | .64 | .64 | .64 | .64 | .65 | .65 | .65 | .65 | .65 | .65 |
| Max Height (mm) | 1.75 | 1.75 | 1.75 | 1.75 | 1 | 1 | 1.2 | 1.2 | 1.2 | 1.2 |
| Mechanical Data | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download |
Eco Plan
| ADS7846E | ADS7846E/2K5 | ADS7846E/2K5G4 | ADS7846EG4 | ADS7846IRGVT | ADS7846IRGVTG4 | ADS7846N | ADS7846N/2K5 | ADS7846N/2K5G4 | ADS7846NG4 | |
|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Application Notes
- Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revision: A, File published: May 18, 2015
- Q4 2007 Issue Analog Applications Journal (Rev. A)PDF, 316 Kb, Revision: A, File published: Nov 14, 2007
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revision: B, File published: Oct 9, 2011
This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (ΔΣ), 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. - Using a touch-screen controller’s auxiliary inputsPDF, 149 Kb, File published: Oct 12, 2007
- Touch Screen Controller TipsPDF, 86 Kb, File published: 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. - Calibration in touch-screen systemsPDF, 169 Kb, File published: Aug 10, 2007
- Using the ADS7846 Touch Screen Ctrl. with the Intel SA-1110 StrongArm ProcessorPDF, 81 Kb, File published: Sep 19, 2001
The Intel SA-1110 StrongArm processor is a popular platform for development of personal digital assistants (PDAs) and other hand-held computing devices. The human interface for these devices is generally a touch screen. This application report provides information on connecting the TI ADS7846 touch screen controller to an SA-1110, and provides documentation for a Windows CE driver that has been de - Operation Schemes of Touch Screen ControllersPDF, 846 Kb, File published: May 21, 2007
- Apply TI TSC for Various and Multiple FunctionsPDF, 316 Kb, File published: 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 - Reducing Analog Input Noise in Touch Screen Systems (Rev. A)PDF, 535 Kb, Revision: A, File published: 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 - Set Up and Use TSC TimingsPDF, 271 Kb, File published: Jun 7, 2007
This application report helps users to understand, set up, and use the programming timings in the register-based touch screen controller (TSC) devices. It displays the timings functions and discusses the effect on the system interface traffic and on the system power consumption. - PCB Layout Guideline for TI Resistive TSC DevicesPDF, 144 Kb, File published: Oct 4, 2012
- Evaluating the ADS7846E: Using the DEM-ADS7843E/45E Evaluation FixturePDF, 44 Kb, File published: Sep 27, 2000
The ADS7846 is the next-generation version to the industry standard ADS7843 4-wire touch-screen controller. The ADS7846 is 100% pin-compatible with the existing ADS7843, and will drop into the same socket. This allows for easy upgrade of current applications to the new version. - Principles of Data Acquisition and Conversion (Rev. A)PDF, 132 Kb, Revision: A, File published: Apr 16, 2015
Model Line
Series: ADS7846 (10)
Manufacturer's Classification
- Semiconductors> Data Converters> Integrated/Special Function Data Converters> Touch Screen Controllers
