AD7142 Analog Devices, AD7142 Datasheet - Page 55

• 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

Table 46. STAGEX Detailed CIN (7:13) Connection Setup Description (X = 0 to 11)
Data Bit
[1:0]
[3:2]
[5:4]
[7:6]
[9:8]
[11:10]
[13:12]
[14]
[15]
Default Value
X
X
X
X
X
X
X
X
X
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Name
CIN7_CONNECTION_SETUP
CIN8_CONNECTION_SETUP
CIN9_CONNECTION_SETUP
CIN10_CONNECTION_SETUP
CIN11_CONNECTION_SETUP
CIN12_CONNECTION_SETUP
CIN13_CONNECTION_SETUP
NEG_AFE_OFFSET_DISABLE
POS_AFE_OFFSET_DISABLE
Rev. A | Page 55 of 72
Description
CIN7 connection setup
CIN8 connection setup
CIN9 connection setup
CIN10 connection setup
CIN11 connection setup
CIN12 connection setup
CIN13 connection setup
Negative AFE offset enable control
Positive AFE offset enable control
00 = CIN7 not connected to CDC inputs
01 = CIN7 connected to CDC negative input
10 = CIN7 connected to CDC positive input
11 = CIN7 connected to BIAS (connect unused CIN inputs)
00 = CIN8 not connected to CDC inputs
01 = CIN8 connected to CDC negative input
10 = CIN8 connected to CDC positive input
11 = CIN8 connected to BIAS (connect unused CIN inputs)
00 = CIN9 not connected to CDC inputs
01 = CIN9 connected to CDC negative input
10 = CIN9 connected to CDC positive input
11 = CIN9 connected to BIAS (connect unused CIN inputs)
00 = CIN10 not connected to CDC inputs
01 = CIN10 connected to CDC negative input
10 = CIN10 connected to CDC positive input
11 = CIN10 connected to BIAS (connect unused CIN inputs)
00 = CIN11 not connected to CDC inputs
01 = CIN11 connected to CDC negative input
10 = CIN11 connected to CDC positive input
11 = CIN11 connected to BIAS (connect unused CIN inputs)
00 = CIN12 not connected to CDC inputs
01 = CIN12 connected to CDC negative input
10 = CIN12 connected to CDC positive input
11 = CIN12 connected to BIAS (connect unused CIN inputs)
00 = CIN13 not connected to CDC inputs
01 = CIN13 connected to CDC negative input
10 = CIN13 connected to CDC positive input
11 = CIN13 connected to BIAS (connect unused CIN inputs)
0 = enable
1 = disable
0 = enable
1 = disable
AD7142