Capacitance to Digital Converters

Analog Devices offers the world’s first high-precision, fully integrated Capacitance-to-Digital Converters (CDC), that address the complex and difficult signal processing challenges of direct capacitance-to-digital conversion. The award-winning Capacitance-to-Digital Converter (CDC) technology enables high accuracy capacitance sensing for Industrial, Automotive, and Consumer applications.

Circuit from the lab Engineered. Tested. Ready to Integrate.

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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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Capacitive Touch Controller

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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