AD7142 Analog Devices, AD7142 Datasheet - Page 54

• Manufacturer Part Number: AD7142
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

Specifications of AD7142

• Resolution (bits): 16bit
• # Chan: 14
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: ± 2 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7142
Table 45. STAGEX Detailed CIN (0:6) Connection Setup Description (X = 0 to 11)
Data Bit
[1:0]
[3:2]
[5:4]
[7:6]
[9:8]
[11:10]
[13:12]
[15:14]
Default
Value
X
X
X
X
X
X
X
X
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Name
CIN0_CONNECTION_SETUP
CIN1_CONNECTION_SETUP
CIN2_CONNECTION_SETUP
CIN3_CONNECTION_SETUP
CIN4_CONNECTION_SETUP
CIN5_CONNECTION_SETUP
CIN6_CONNECTION_SETUP
Unused
Rev. A | Page 54 of 72
Description
CIN0 connection setup
CIN1 connection setup
CIN2 connection setup
CIN3 connection setup
CIN4 connection setup
CIN5 connection setup
CIN6 connection setup
Set unused register bits = 0
00 = CIN0 not connected to CDC inputs
01 = CIN0 connected to CDC negative input
10 = CIN0 connected to CDC positive input
11 = CIN0 connected to BIAS (connect unused CIN inputs)
00 = CIN1 not connected to CDC inputs
01 = CIN1 connected to CDC negative input
10 = CIN1 connected to CDC positive input
11 = CIN1 connected to BIAS (connect unused CIN inputs)
00 = CIN2 not connected to CDC inputs
01 = CIN2 connected to CDC negative input
10 = CIN2 connected to CDC positive input
11 = CIN2 connected to BIAS (connect unused CIN inputs)
00 = CIN3 not connected to CDC inputs
01 = CIN3 connected to CDC negative input
10 = CIN3 connected to CDC positive input
11 = CIN3 connected to BIAS (connect unused CIN inputs)
00 = CIN4 not connected to CDC inputs
01 = CIN4 connected to CDC negative input
10 = CIN4 connected to CDC positive input
11 = CIN4 connected to BIAS (connect unused CIN inputs)
00 = CIN5 not connected to CDC inputs
01 = CIN5 connected to CDC negative input
10 = CIN5 connected to CDC positive input
11 = CIN5 connected to BIAS (connect unused CIN inputs)
00 = CIN6 not connected to CDC inputs
01 = CIN6 connected to CDC negative input
10 = CIN6 connected to CDC positive input
11 = CIN6 connected to BIAS (connect unused CIN inputs)