AD7142 Analog Devices, AD7142 Datasheet - Page 51

• 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 36. STAGE3 Configuration Registers
Address
0x098
0x099
0x09A
0x09B
0x09C
0x09D
0x09E
0x09F
Table 37. STAGE4 Configuration Registers
Address
0x0A0
0x0A1
0x0A2
0x0A3
0x0A4
0x0A5
0x0A6
0x0A7
Table 38. STAGE5 Configuration Registers
Address
0x0A8
0x0A9
0x0AA
0x0AB
0x0AC
0x0AD
0x0AE
0x0AF
Data Bit
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
Data Bit
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
Data Bit
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
Default
Value
X
X
X
X
X
X
X
X
Default
Value
X
X
X
X
X
X
X
X
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
R/W
Type
R/W
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
STAGE3_CONNECTION[6:0]
STAGE3_CONNECTION[13:7]
STAGE3_AFE_OFFSET
STAGE3_SENSITIVITY
STAGE3_OFFSET_LOW
STAGE3_OFFSET_HIGH
STAGE3_OFFSET_HIGH_CLAMP
STAGE3_OFFSET_LOW_CLAMP
Name
STAGE4_CONNECTION[6:0]
STAGE4_CONNECTION[13:7]
STAGE4_AFE_OFFSET
STAGE4_SENSITIVITY
STAGE4_OFFSET_LOW
STAGE4_OFFSET_HIGH
STAGE4_OFFSET_HIGH_CLAMP
STAGE4_OFFSET_LOW_CLAMP
Name
STAGE5_CONNECTION[6:0]
STAGE5_CONNECTION[13:7]
STAGE5_AFE_OFFSET
STAGE5_SENSITIVITY
STAGE5_OFFSET_LOW
STAGE5_OFFSET_HIGH
STAGE5_OFFSET_HIGH_CLAMP
STAGE5_OFFSET_LOW_CLAMP
Rev. A | Page 51 of 72
Description
STAGE3 CIN(6:0) connection setup (see Table 45)
STAGE3 CIN(13:7) connection setup (see Table 46)
STAGE3 AFE offset control (see Table 47)
STAGE3 sensitivity control (see Table 48)
STAGE3 initial offset low value
STAGE3 initial offset high value
STAGE3 offset high clamp value
STAGE3 offset low clamp value
Description
STAGE4 CIN(6:0) connection setup (see Table 45)
STAGE4 CIN(13:7) connection setup (see Table 46)
STAGE4 AFE offset control (see Table 47)
STAGE4 sensitivity control (see Table 48)
STAGE4 initial offset low value
STAGE4 initial offset high value
STAGE4 offset high clamp value
STAGE4 offset low clamp value
Description
STAGE5 CIN(6:0) connection setup (see Table 45)
STAGE5 CIN(13:7) connection setup (see Table 46)
STAGE5 AFE offset control (see Table 47)
STAGE5 sensitivity control (see Table 48)
STAGE5 initial offset low value
STAGE5 initial offset high value
STAGE5 offset high clamp value
STAGE5 offset low clamp value
AD7142