參數資料
型號: AD7148ACPZ-1500RL7
廠商: Analog Devices Inc
文件頁數: 42/57頁
文件大?。?/td> 0K
描述: IC CAP-TO-DGTL CONV PROG 16LFCSP
標準包裝: 1
類型: 電容性
觸摸面板接口: 2 線
輸入數/鍵: 8
分辨率(位): 16 b
數據接口: I²C,串行
數據速率/采樣率 (SPS,BPS): 250k
電壓基準: 內部
電源電壓: 2.6 V ~ 3.3 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-VQFN 裸露焊盤,CSP
供應商設備封裝: 16-LFCSP
包裝: 標準包裝
產品目錄頁面: 781 (CN2011-ZH PDF)
其它名稱: AD7148ACPZ-1500RL7DKR
AD7148
Rev. A | Page 46 of 56
Table 40. STAGEx Detailed CIN7 Connection Setup Description (x = 0 to 7)
Data
Bit
Default
Value
Type
Mnemonic
Description
[1:0]
X
R/W
CIN7_CONNECTION_SETUP
CIN7 connection setup
00 = CIN7 not connected to CDC inputs
01 = CIN7 connected to CDC negative input
10 = CIN7 connected to CDC positive input
11 = CIN7 connected to BIAS (connect unused CINx inputs)
[12:2]
X
Unused
Set unused register bits to 0
[13:12]
X
R/W
SE_CONNECTION_SETUP
Single-ended measurement connection setup
00 = do not use
01 = use when one CIN is connected to CDC positive input,
single-ended measurements only
10 = use when one CIN is connected to CDC negative input,
single-ended measurements only
11 = differential connection to CDC
[14]
X
R/W
NEG_AFE_OFFSET_DISABLE
Negative AFE offset enable control
0 = enable
1 = disable
[15]
X
R/W
POS_AFE_OFFSET_DISABLE
Positive AFE offset enable control
0 = enable
1 = disable
Table 41. STAGEx Detailed Offset Control Description (x = 0 to 7)
Data
Bit
Default
Value
Type
Mnemonic
Description
[5:0]
X
R/W
NEG_AFE_OFFSET
Negative AFE offset setting (20 pF range)
1 LSB value = 0.32 pF of offset
[6]
X
Unused
Set to 0
[7]
X
R/W
NEG_AFE_OFFSET_SWAP
Negative AFE offset swap control
0 = NEG_AFE_OFFSET applied to CDC negative input
1 = NEG_AFE_OFFSET applied to CDC positive input
[13:8]
X
R/W
POS_AFE_OFFSET
Positive AFE offset setting (20 pF range)
1 LSB value = 0.32 pF of offset
[14]
X
Unused
Set to 0
[15]
X
R/W
POS_AFE_OFFSET_SWAP
Positive AFE offset swap control
0 = POS_AFE_OFFSET applied to CDC positive input
1 = POS_AFE_OFFSET applied to CDC negative input
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