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ADS7843-Q1 PDF预览

ADS7843-Q1

更新时间: 2024-11-25 12:50:35
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
21页 1437K
描述
TOUCH SCREEN CONTROLLER

ADS7843-Q1 数据手册

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ADS7843-Q1  
www.ti.com  
SBAS504A MARCH 2011REVISED JULY 2012  
TOUCH SCREEN CONTROLLER  
Check for Samples: ADS7843-Q1  
1
FEATURES  
DESCRIPTION  
Qualified for Automotive Applications  
Ratiometric Conversion  
The ADS7843-Q1 is a 12-bit sampling Analog-to-  
Digital Converter (ADC) with a synchronous serial  
interface and low on-resistance switches for driving  
touch screens. Typical power dissipation is 750µW at  
a 125kHz throughput rate and a +2.7V supply. The  
reference voltage (VREF) can be varied between 1V  
and +VCC, providing a corresponding input voltage  
range of 0V to VREF. The device includes a shutdown  
mode which reduces typical power dissipation to  
under 0.5µW. The ADS7843-Q1 is specified down to  
2.7V operation.  
Single Supply: 2.7V to 5V  
Up to 125kHz Conversion Rate  
Serial Interface  
Programmable 8- or 12-Bit Resolution  
2 Auxiliary Analog Inputs  
Full Power-Down Control  
APPLICATIONS  
Low power, high speed, and onboard switches make  
the ADS7843-Q1 ideal for battery-operated systems  
such as personal digital assistants with resistive  
touch screens and other portable equipment. The  
ADS7843-Q1 is available in an SSOP-16 package  
and is specified over the –40°C to +85°C temperature  
range.  
Personal Digital Assistants  
Portable Instruments  
Point-of-Sales Terminals  
Pagers  
Touch Screen Monitors  
ORDERING INFORMATION(1)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
–40°C to 85°C  
SSOP-16 – DBQ Tape and reel  
ADS7843IDBQRQ1  
S7843Q  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2011–2012, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
 

ADS7843-Q1 替代型号

型号 品牌 替代类型 描述 数据表
TSC2013-Q1 TI

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