AD7148 Analog Devices, AD7148 Datasheet - Page 45

• Manufacturer Part Number: AD7148
• Manufacturer: Analog Devices

Specifications of AD7148

• Resolution (bits): 16bit
• # Chan: 8
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: ± 8 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

Table 38. STAGE7 Configuration Registers
Address
0x0B8
0x0B9
0x0BA
0x0BB
0x0BC
0x0BD
0x0BE
0x0BF
Table 39. STAGEx Detailed CIN[0:6] Connection Setup Description (x = 0 to 7)
Data
Bit
[1:0]
[3:2]
[5:4]
[7:6]
[9:8]
[11:10]
[13:12]
[15:14]
Default
Value
X
X
X
X
X
X
X
X
Data
Bit
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
[15:0]
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
Value
X
X
X
X
X
X
X
X
Mnemonic
CIN0_CONNECTION_SETUP
CIN1_CONNECTION_SETUP
CIN2_CONNECTION_SETUP
CIN3_CONNECTION_SETUP
CIN4_CONNECTION_SETUP
CIN5_CONNECTION_SETUP
CIN6_CONNECTION_SETUP
Unused
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Mnemonic
STAGE7_CONNECTION_SETUP[6:0]
STAGE7_CONNECTION_SETUP[7]
STAGE7_AFE_OFFSET
STAGE7_SENSITIVITY
STAGE7_OFFSET_LOW
STAGE7_OFFSET_HIGH
STAGE7_OFFSET_HIGH_CLAMP
STAGE7_OFFSET_LOW_CLAMP
Rev. A | 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
Set unused register bits to 0
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 CINx 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 CINx 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 CINx 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 CINx 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 CINx 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 CINx 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 CINx inputs)
STAGE7 AFE offset control (see Table 41)
STAGE7 sensitivity control (see Table 42)
STAGE7 initial offset low value
STAGE7 initial offset high value
STAGE7 offset high clamp value
STAGE7 offset low clamp value
Description
STAGE7 CIN[6:0] connection setup (see Table 39)
STAGE7 CIN7 connection setup (see Table 40)
AD7148