ADS7843EG4 供应商
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ADS7843EG4
品牌：TI 封装/批号：原厂原装/22+ -
ADS7843EG4
品牌：TI(德州仪器) 封装/批号：SSOP-16/2022+
ADS7843EG4 属性参数
- 产品培训模块：Data Converter Basics
- 标准包装：75
- 类别：集成电路 (IC)
- 家庭：数据采集 - 触摸屏控制器
- 系列：-
- 类型：电阻
- 触摸面板接口：4 线
- 输入数/键：1 TSC
- 分辨率（位）：12 b
- 评估套件：-
- 数据接口：串行
- 数据速率/采样率 (SPS，BPS)：125k
- 电压基准：外部
- 电源电压：2.7 V ~ 5 V
- 电流 - 电源：2.5µA
- 工作温度：-40°C ~ 85°C
- 安装类型：表面贴装
- 封装/外壳：16-SSOP（0.154"，3.90mm 宽）
- 供应商设备封装：16-SSOP/QSOP
- 包装：管件
产品特性
- 4-WIRE TOUCH SCREEN INTERFACE
- RATIOMETRIC CONVERSION
- 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 PERSONAL DIGITAL ASSISTANTS PORTABLE INSTRUMENTS POINT-OF-SALES TERMINALS PAGERS TOUCH SCREEN MONITORS
- PERSONAL DIGITAL ASSISTANTS
- PORTABLE INSTRUMENTS
- POINT-OF-SALES TERMINALS
- PAGERS
- TOUCH SCREEN MONITORS
产品概述
The ADS7843 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 750uW 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 0.5uW. The ADS7843 is specified down to 2.7V operation.Low power, high speed, and onboard switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843 is available in an SSOP-16 package and is specified over the –40°C to +85°C temperature range.