电容型触摸控制器

Analog Devices CapTouch™ controllers based on proprietary Capacitance-to-Digital Converter (CDC) technology deliver highly accurate and robust measurement of capacitance sensors used to implement user interface functions such as buttons, scroll bars, and wheels in portable and other applications.

产品选型表

Capacitive to Digital Converters

Part#Resolution (Bits)Throughput Rate# ChanPower Dissipation (typ)Input Base Capacitance C-D CinUS Price 1000 to 4999
AD7147A 16 111 SPS 12 3.6 mW 20 pF 8 pF $1.25
AD7156 12 100 SPS 2 252 µW 10 pF 4 pF $1.25
AD7153 12 200 SPS 1 432 µW 5 pF 2 pF $1.77
AD7152 12 200 SPS 2 432 µW 5 pF 2 pF $1.97
AD7148 16 4 SPS 8 3.3 mW 20 pF 8 pF $1.21
AD7151 12 100 SPS 1 0.3 mW 10 4 $1.37
AD7150Reference Circuit Available 12 200 SPS 2 0.43 mW 10 pF 4 pF $1.37
AD7147 16 111 SPS 12 3.6 mW 20 pF 8 pF $1.28
AD7747 24 45.5 SPS 1 4.25 mW 17 pF 8 pF $4.66
AD7143 16 43.5 SPS 8 3.6 mW 20 pF 2 pF $1.25
AD7142 16 27.8 SPS 14 3.6 mW 20 pF 2 pF $1.37
AD7746Reference Circuit Available 24 90 SPS 2 4.25 mW 17 4 $5.01
AD7745Reference Circuit Available 24 90 SPS 1 4.25 mW 17 pF 4 pF $4.66
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电容型触摸控制器

Part#ResolutionNumber of ChannelsDelta CINThroughput RateSerial InterfaceInput Base Capacitance Least # Pins
AD7147A 16 12 8 pF 111 SPS I2C 20 pF 25
AD7148 16 8 8 pF 4 SPS I2C 20 pF 16
AD7147 16 12 8 pF 111 SPS I2C 20 pF 24
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