參數(shù)資料
型號(hào): DDC112U/1K
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 2-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28
封裝: GREEN, PLASTIC, SOIC-28
文件頁數(shù): 9/34頁
文件大?。?/td> 776K
代理商: DDC112U/1K
DDC112
17
SBAS085B
www.ti.com
CLK = 10MHz
CLK = 15MHz
SYMBOL
DESCRIPTION
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
TINT
Integration Time (noncontinuous mode)
50
1,000,000
50
1,000,000
s
t12
A/D Conversion Time (internally controlled)
202.2
134.8
s
t13
A/D Conversion Reset Time (internally controlled)
13.2
8.8
s
t15
Integrator and A/D Conversion Reset Time
37.8
25.2
s
(internally controlled)
t16
Total A/D Conversion and Rest Time
910.8
607.2
s
(internally controlled)
t17
Release Time
24
s
FIGURE 14. Conversion Detail for the Internal Operation of the Non-Continuous Mode with Side A Integrated First.
t
12
T
INT
T
INT
t
16
t
12
t
13
t
15
t
17
Release
State
End Integration Side A
Start Integration Side B
End Integration Side B
Wait State
Side A
Data Ready
Side B
Data Ready
Start Integration Side A
CONV
A/D Conversion
Input 1
A/D Conversion
Input 2
DVALID
t
12
T
INT
T
INT
t
16
t
12
t
13
t
15
t
17
CONV
A/D Conversion
Input 1
A/D Conversion
Input 2
DVALID
Release
State
End Integration Side B
Start Integration Side A
End Integration Side A
Wait State
Side B
Data Ready
Side A
Data Ready
Start Integration Side B
FIGURE 15. Internal Operation Timing Diagram of the Non-Continuous Mode with Side B Integrated First.
TABLE VII. Internal Timing for the DDC112 in the Non-Continuous Mode.
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