ADS7846 4 引线触摸屏控制器
|
ADS7846 |
| Touch Panel |
4-Wire |
| SAR ADC Resolution(Bits) |
12 |
| SAR Sample Rate(Max)(kSPS) |
125 |
| Interface |
Serial, SPI |
| Vref (Int/Ext) |
Int |
| Supply Voltage(Min)(V) |
2.7 |
| Supply Voltage(Max)(V) |
5.25 |
| Pin/Package |
16SSOP/QSOP,
16TSSOP, 16VQFN,
48BGA MICROSTAR JUNIOR |
ADS7846 说明
The ADS7846 is a next-generation version to the industry standard ADS7843 4-wire touch screen controller. The ADS7846 is 100% pin-compatible with the existing ADS7843, and drops into the same socket. This allows for easy upgrade of current applications to the new version. Only software changes are required to take advantage of the added features of direct battery measurement, temperature measurement, and touch-pressure measurement. The ADS7846 also has an on-chip 2.5V reference that can be used for the auxiliary input, battery monitor, and temperature measurement modes. The reference can also be powered down when not used to conserve power. The internal reference operates down to 2.7V supply voltage while monitoring the battery voltage from 0V to 6V.
ADS7846 特性
- SAME PINOUT AS ADS7843
- 2.2V TO 5.25V OPERATION
- INTERNAL 2.5V REFERENCE
- DIRECT BATTERY MEASUREMENT (0V to 6V)
- ON-CHIP TEMPERATURE MEASUREMENT
- TOUCH-PRESSURE MEASUREMENT
- QSPI™/SPI™ 3-WIRE INTERFACE
- AUTO POWER-DOWN
- TSSOP-16, SSOP-16, QFN-16, AND VFBGA-48 PACKAGES
- APPLICATIONS
- PERSONAL DIGITAL ASSISTANTS
- PORTABLE INSTRUMENTS
- POINT-OF-SALES TERMINALS
- PAGERS
- TOUCH SCREEN MONITORS
- CELLULAR PHONES
ADS7846 芯片订购指南
ADS7846 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| ADS7846E |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
ADS7846E |
| ADS7846E/2K5 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
ADS7846E/2K5 |
| ADS7846E/2K5G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
ADS7846E/2K5G4 |
ADS7846E/2K5G4 |
| ADS7846EG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
ADS7846EG4 |
ADS7846EG4 |
ADS7846 应用技术支持与电子电路设计开发资源下载
- ADS7846 数据资料 dataSheet 下载.PDF
- TI 德州仪器仅限于触摸屏控制器产品选型与价格参考 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 触摸屏系统中的校准 (PDF 393 KB)
- Using a touch-screen controller’s auxiliary inputs (PDF 149 KB)
- Q4 2007 Issue Analog Applications Journal (PDF 325 KB)
- Reducing Analog Input Noise in Touch Screen Systems (PDF 535 KB)
- Operation Schemes of Touch Screen Controllers (PDF 846 KB)
- Apply TI TSC for Various and Multiple Functions (PDF 316 KB)
- How to Use TI's 4-Wire TSC to Control an 8-Wire Resistive Touch Screen (PDF 271 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Touch Screen Controller Tips (PDF 86 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
ADS7846 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS7846 评估模块 |
ADS7846EVM |
Texas Instruments |
开发电路板/EVM |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 |
DCPFREETOOL |
Texas Instruments |
实用程序/插件 |
| MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design |
MDACBUFFERPRO |
Texas Instruments |
应用软件 |
