Programmable Touch Controller for Single Electrode Capacitance Sensors

GENERAL DESCRIPTION The AD7148 is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels. The sensors need only one PCB layer, enabling ultrathin applications. FEATURES Programmable capacitance-to-digital converter (CDC) Femtofarad

文件：1.2427 Mbytes 页数：56 Pages

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CapTouch™单电极电容式传感器专用可编程控制器

AD7148专用于与电容传感器配合使用，来实现按钮、滚动条、滚动轮等功能。这类传感器应用仅需单层板设计，实现了超薄应用。\n\n\n\nAD7148是一款高集成度的电容数字转换器 (CDC)，内置环境校准功能。该电容数字转换器具有8个输入，通过开关阵列与16-bit, 250 kHz∑-Δ转换器连接。电容数字转换器能够检测外部传感器的电容变化，并利用这一信息记录传感器的触发。外部传感器可以包括一系列按钮、滚动条、滚动轮或这类传感器组合。通过对寄存器进行编程，用户可以完全控制电容数字转换器的设置。\n\n\n\n高分辨率传感器仅需较少的软件即可在主处理器上运行\n\n\n\nAD7148是为单电 • 可编程电容数字转换器\nfF分辨率\n8路电容传感器输入\n25ms的更新速率（所有8路传感器输入）\n无需外部RC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自适应式阈值和灵敏度水平\n寄存器映射与AD7143兼容\n\n• 用片内RAM存储校准数据\n\n• I2C®兼容型串行接口;

ADI

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Programmable Touch Controller for Single Electrode Capacitance Sensors

GENERAL DESCRIPTION The AD7148 is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels. The sensors need only one PCB layer, enabling ultrathin applications. FEATURES Programmable capacitance-to-digital converter (CDC) Femtofarad

文件：1.2427 Mbytes 页数：56 Pages

AD

亚德诺

Programmable Touch Controller for Single Electrode Capacitance Sensors

GENERAL DESCRIPTION The AD7148 is designed for use with capacitance sensors implementing functions such as buttons, scroll bars, and wheels. The sensors need only one PCB layer, enabling ultrathin applications. FEATURES Programmable capacitance-to-digital converter (CDC) Femtofarad

文件：1.2427 Mbytes 页数：56 Pages

AD

亚德诺

Package：16-VQFN 裸露焊盘，CSP；包装：卷带（TR） 类别：集成电路（IC） 传感器，电容式触控 描述：IC CAP-TO-DGTL CONV PROG 16LFCSP

AD

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Package：16-VQFN 裸露焊盘，CSP；包装：卷带（TR） 类别：集成电路（IC） 传感器，电容式触控 描述：IC CAP-TO-DGTL CONV PROG 16LFCSP

AD

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