AD7143 Analog Devices, AD7143 Datasheet - Page 10

• Manufacturer Part Number: AD7143
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

Specifications of AD7143

• Resolution (bits): 16bit
• # Chan: 8
• Sample Rate: n/a
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: n/a
• Ain Range: ± 2 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7143
32900
32800
32700
32600
32500
32400
32300
PARASITIC
32200
CAPACITANCE
32100
32000
31900
0
10
20
30
40
50
6
0
PCB PARASITIC CAPACITANCE (pF)
Figure 16. CDC Output Codes vs. Parasitic Capacitance
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