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參數(shù)資料
| 型號： | AD7651ASTRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 16-Bit 100 kSPS PulSAR Unipolar ADC with Reference |
| 中文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP48 |
| 封裝： | MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 709K |
| 代理商： | AD7651ASTRL |
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AD7651
TIMING SPECIFICATIONS
Table 3. –40°C to +85°C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted
Parameter
Refer to Figure 26 and Figure 27
Convert Pulse Width
Time between Conversions
CNVST LOW to BUSY HIGH Delay
BUSY HIGH All Modes Except Master Serial Read after Convert
Aperture Delay
End of Conversion to BUSY LOW Delay
Conversion Time
Acquisition Time
RESET Pulse Width
Refer to Figure 28, Figure 29, and
(Parallel Interface Modes)
CNVST LOW to DATA Valid Delay
DATA Valid to BUSY LOW Delay
Bus Access Request to DATA Valid
Bus Relinquish Time
Refer to Figure 32 and Figure 33 (Master Serial Interface Modes)
1
CS LOW to SYNC Valid Delay
CS LOW to Internal SCLK Valid Delay
1
CS LOW to SDOUT Delay
CNVST LOW to SYNC Delay
SYNC Asserted to SCLK First Edge Delay
Internal SCLK Period
2
Internal SCLK HIGH
2
Internal SCLK LOW
2
SDOUT Valid Setup Time
2
SDOUT Valid Hold Time
2
SCLK Last Edge to SYNC Delay
2
CS HIGH to SYNC HI-Z
CS HIGH to Internal SCLK HI-Z
CS HIGH to SDOUT HI-Z
BUSY HIGH in Master Serial Read after Convert
2
CNVST LOW to SYNC Asserted Delay
SYNC Deasserted to BUSY LOW Delay
Refer to
and
(Slave Serial Interface Modes)
1
External SCLK Setup Time
External SCLK Active Edge to SDOUT Delay
SDIN Setup Time
SDIN Hold Time
External SCLK Period
External SCLK HIGH
External SCLK LOW
Symbol
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
t
13
t
14
t
15
t
16
t
17
t
18
t
19
t
20
t
21
t
22
t
23
t
24
t
25
t
26
t
27
t
28
t
29
t
30
t
31
t
32
t
33
t
34
t
35
t
36
t
37
Min
10
10
10
8.75
10
12
5
3
25
12
7
4
2
3
5
3
5
5
25
10
10
Typ
2
525
See Table 4
1.25
25
Max
35
1.25
1.25
1.25
45
15
10
10
10
40
10
10
10
18
Unit
ns
μs
ns
μs
ns
ns
μs
μs
ns
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
ns
ns
ns
ns
ns
ns
ns
ns
Figure 30
Figure 34
Figure 35
1
In serial interface modes, the SYNC, SCLK, and SDOUT timings are defined with a maximum load C
L
of 10 pF; otherwise, the load is 60 pF maximum.
2
In Serial Master Read during Convert Mode. See Table 4 for serial master read after convert mode.
Rev. 0 | Page 5 of 28
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