Capacitive Touch Controllers

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.

PRODUCT SELECTION TABLES

Capacitive to Digital Converters

Part# Resolution (Bits)Throughput Rate# ChanPower DissInput Base CapacitanceC-D CinUS-Price-1000-to-4999
AD7147A16111SPS123.6mW20pF8pF $1.25
AD715612100SPS2252µW10pF4pF $1.25
AD715212200SPS2432µW5pF2pF $1.97
AD715312200SPS1432µW5pF2pF $1.77
AD7148164SPS83.3mW20pF8pF $1.21
AD714716111SPS123.6mW20pF8pF $1.28
AD7150Reference Circuit Available12200SPS2430µW10pF4pF $1.37
AD715112100SPS1300µW10F4F $1.37
AD71431643.5SPS83.6mW20pF2pF $1.25
AD77472445.5SPS14.25mW17pF8pF $4.66
AD71421627.8SPS143.6mW20pF2pF $1.37
AD7745Reference Circuit Available2490SPS14.25mW17pF4pF $4.66
AD7746Reference Circuit Available2490SPS24.25mW17F4F $5.01
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Capacitive Touch Controller

Part# Resolution#ADC-InputsDelta CINThroughput RatePackage TypeSerial InterfaceInput Base Capacitance#Pins-Smallest-Pkg
AD714716128pF111SPSLFCSPI2C, SPI20pF24
AD7147A16128pF111SPSWLCSPI2C20pF25
AD71481688pF4SPSLFCSPI2C20pF16
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