AD7147A集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AD7147A属于集成电路（IC）的ADC/DAC-特殊用途。由亚德诺半导体技术有限公司制造生产的AD7147AADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

GENERAL DESCRIPTION

The AD7147A CapTouch™ controller 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 (fF) resolution

13 capacitance sensor inputs

9 ms update rate, all 13 sensor inputs

No external RC components required

Automatic conversion sequencer

On-chip automatic calibration logic

Automatic compensation for environmental changes

Automatic adaptive threshold and sensitivity levels

Register map is compatible with the AD714x

On-chip RAM to store calibration data

Serial peripheral interface (SPI) (AD7147A)

I2C-compatible serial interface (AD7147A-1)

Separate VDRIVE level for serial interface

Interrupt output and general-purpose input/output (GPIO)

25-ball, 2.3 mm × 2.1 mm WLCSP

2.6 V to 3.6 V supply voltage

Low operating current

Full power mode: 1 mA

Low power mode: 28.96 μA

APPLICATIONS

Cell phones

Personal music and multimedia players

Smart handheld devices

Television, A/V, and remote controls

Gaming consoles

Digital still cameras