AD7143 Analog Devices, AD7143 Datasheet - Page 45

• 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

Table 37. STAGE7 Configuration Registers
Address
0x0B8
0x0B9
0x0BA
0x0BB
0x0BC
0x0BD
0x0BE
0x0BF
Table 38. STAGEX Detailed CIN (0:6) Connection Setup Description (X = 0 to 6)
Data Bit
[1:0]
[3:2]
[5:4]
[7:6]
[9:8]
[11:10]
[13:12]
[15:14]
Data Bit
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
Default
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Default
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Type
R/W
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
Name
STAGE7_CONNECTION[6:0]
STAGE7_CONNECTION 7
STAGE7_AFE_OFFSET
STAGE7_SENSITIVITY
STAGE7_OFFSET_LOW
STAGE7_OFFSET_HIGH
STAGE7_OFFSET_HIGH_CLAMP
STAGE7_OFFSET_LOW_CLAMP
Rev. 0 | Page 45 of 56
CIN0 connection setup
CIN1 connection setup
CIN2 connection setup
CIN3 connection setup
CIN4 connection setup
CIN5 connection setup
CIN6 connection setup
Description
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)
Description
STAGE7 CIN(6:0) connection setup (see Table 38)
STAGE7 CIN7 connection setup (see Table 39)
STAGE7 AFE offset control (see Table 40)
STAGE7 sensitivity control (see Table 41)
STAGE7 initial offset low value
STAGE7 initial offset high value
STAGE7 offset high clamp value
STAGE7 offset low clamp value
AD7143