Programmable Capacitance-to-Digital Converter with Environmental Compensation

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：1.3517 Mbytes 页数：68 Pages

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Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

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Programmable Controller for Capacitance Touch Sensors

文件：1.11848 Mbytes 页数：70 Pages

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电容式触摸传感器专用可编程控制器

AD7142和AD7142-1是具有片内环境校准功能的集成式电容-数字转换器(CDC)，可用于需要采用新型用户输入法的系统。AD7142和AD7142-1可与外部电容式传感器接口，从而实现电容按钮、滚动条或滚轮等功能。\n\n 该CDC有14个输入通道，通过一个开关矩阵与一个16位、250 kHz Σ-Δ型电容数字转换器相连。该CDC能够感知外部传感器的电容变化，并借助此信息来记录传感器激活事件。外部传感器既可配置成一系列按钮，也可配置成一个滚动条或滚轮，或者各类传感器的组合。通过对寄存器进行编程，用户可完全控制CDC设置。高分辨率传感器要求在主处理器上运行较少的软件。 \n\n • 可编程的电容数字转换器\n36 ms的更新速率（最大序列长度时）\n分辨率优于1 fF\n14个电容式传感器输入通道\n无需使用外部RC调谐元件\n自动转换定序器\n\n• 片内自动校准逻辑\n自动补偿环境变化\n自适应的阈值和灵敏度电平\n\n• 用片内RAM存储校准数据\n\n• SPI®兼容型串行接口(AD7142) \n\n• I2C®兼容型串行接口(AD7142-1) \n\n\n\n• 串行接口专用独立VDRIVE电平\n\n• 中断输出和GPIO \n\n• 32-引脚、5 mm x 5 mm LFCSP_VQ封装 \n\n• 电源电压：2.6 V至3.6 V\n\n• 低工;

ADI

亚德诺

Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

AD

亚德诺

Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

AD

亚德诺

Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

AD

亚德诺

Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

AD

亚德诺

Programmable Controller for Capacitance Touch Sensors

GENERAL DESCRIPTION The AD7142 and AD7142-1 are integrated capacitance-to-digital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as c

文件：844.88 Kbytes 页数：73 Pages

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亚德诺

Programmable Controller for Capacitance Touch Sensors

文件：958.53 Kbytes 页数：73 Pages

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