Datasheet

AD7152/AD7153
Rev. 0 | Page 16 of 24
CAP SETUP REGISTERS
Address 0x0B for Channel 1
Address 0x0E Channel 2 (AD7152
Only)
Default Value
0x00
Table 10. CAP Setup Register Bit Map
Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Mnemonic Range 1 Range 0 CAPDIFF Unused Unused Unused Unused Unused
Default 0 0 0 0 0 0 0 0
Table 11. CAP Setup Register Bit Descriptions
Bit Mnemonic Description
7 Range 1 Capacitive input range and mode setup
6 Range 0
Range 1 Range 0
Capacitive Input Range
5 CAPDIFF
CAPDIFF = 1 (Differential Mode) CAPDIFF = 0 (Single-Ended Mode)
0 0 ±1 pF 2 pF
0 1 ±0.25 pF 0.5 pF
1 0 ±0.5 pF 0.25 pF
1 1 ±2 pF 4 pF
4 to 0 N/A These bits must be 0 for proper operation
CONFIGURATION REGISTER
Address Pointer 0x0F
Default Value 0x00
Table 12. Configuration Register Bit Map
Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Mnemonic Unused Unused Unused Ch1en Ch2en MD2 MD1 MD0
Default 0 0 0 0 0 0 0 0
Table 13. Configuration Register Bit Descriptions
Bit Mnemonic Description
7 to 5 N/A These bits must be 0 for proper operation
4 Ch1en Ch2en = 1 enables Channel 1 for single conversion, continuous conversion, or calibration
3 Ch2en Ch2en = 1 enables Channel 2 for single conversion, continuous conversion, or calibration
2 MD2 Converter mode of operation setup
1 MD1
MD2 MD1 MD0 Mode
0 MD0 0 0 0 Idle
0 0 1 Continuous conversion
0 1 0 Single conversion
0 1 1 Power-down
1 0 0 N/A
1 0 1 Capacitance system offset calibration
1 1 0 Capacitance system gain calibration
1 1 1 N/A