AD7142 Analog Devices, AD7142 Datasheet - Page 49

• 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 31. Device ID Register
Address
0x017
Table 32. Proximity Status Register
Address
0x042
Data Bit
[3:0]
[15:4]
Data Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[15:0]
Default
Value
2
E62
Default
Value
0
0
0
0
0
0
0
0
0
0
0
0
Type
R
Type
R
R
R
R
R
R
R
R
R
R
R
R
Name
REVISION_CODE
DEVID
Name
STAGE0_PROXIMITY_STATUS
STAGE1_PROXIMITY_STATUS
STAGE2_PROXIMITY_STATUS
STAGE3_PROXIMITY_STATUS
STAGE4_PROXIMITY_STATUS
STAGE5_PROXIMITY_STATUS
STAGE6_PROXIMITY_STATUS
STAGE7_PROXIMITY_STATUS
STAGE8_PROXIMITY_STATUS
STAGE9_PROXIMITY_STATUS
STAGE10_PROXIMITY_STATUS
STAGE11_PROXIMITY_STATUS
Unused
Rev. A | Page 49 of 72
Description
AD7142 revision code
AD7142 device ID = 1110 0110 0010
Description
STAGE0 proximity status register
STAGE1 proximity status register
STAGE2 proximity status register
STAGE3 proximity status register
STAGE4 proximity status register
STAGE5 proximity status register
STAGE6 proximity status register
STAGE7 proximity status register
STAGE8 proximity status register
STAGE9 proximity status register
STAGE10 proximity status register
STAGE11 proximity status register
Set unused register bits = 0
1 = indicates proximity has been detected on STAGE0
1 = indicates proximity has been detected on STAGE1
1 = indicates proximity has been detected on STAGE2
1 = indicates proximity has been detected on STAGE3
1 = indicates proximity has been detected on STAGE4
1 = indicates proximity has been detected on STAGE5
1 = indicates proximity has been detected on STAGE6
1 = indicates proximity has been detected on STAGE7
1 = indicates proximity has been detected on STAGE8
1 = indicates proximity has been detected on STAGE9
1 = indicates proximity has been detected on STAGE10
1 = indicates proximity has been detected on STAGE11
AD7142