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參數(shù)資料
| 型號： | LTC2489IDETRPBF |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface |
| 中文描述： | 16位2-/4-Channel ADC，具有易于驅(qū)動的輸入電流取消和I2C接口 |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 341K |
| 代理商： | LTC2489IDETRPBF |
LTC2489
21
2489f
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
10
50
70
14
40
90 100
20 30
60
80
T
A
= 85
°
C
T
A
= 25
°
C
V
IN(CM)
= V
V
CC
REF
= 5V
F
= EXT CLOCK
RES = LOG 2 (V
REF
/INL
MAX
)
2489 F23
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
10
50
70
14
40
90 100
20 30
60
80
V
CC
= 5V, V
REF
= 2.5V
V
CC
= V
REF
= 5V
V
IN(CM)
= V
REF(CM)
V
IN
REF
–
= GND
F
O
= EXT CLOCK
T
A
= 25
°
C
RES = LOG 2 (V
REF
/INL
MAX
)
2489 F26
Figure 19. Offset Error vs Output Data
Rate and Temperature
Figure 20. +FS Error vs Output Data
Rate and Temperature
Figure 21.–FS Error vs Output Data
Rate and Temperature
Figure 22. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 23. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 25. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 26. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 24. Offset Error vs Output
Data Rate and Temperature
APPLICATIONS INFORMATION
OUTPUT DATA RATE (READINGS/SEC)
–10
O
R
)
10
30
50
0
20
40
20
40
60
80
2489 F19
100
10
0
30
50
70
90
V
IN(CM)
= V
REF(CM)
V
CC
= V
REF
= 5V
V
IN
= 0V
F
O
= EXT CLOCK
T
A
= 85
°
C
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
0
+
R
)
500
1500
2000
2500
3500
10
50
70
2489 F20
1000
3000
40
90 100
20 30
60
80
V
IN(CM)
= V
REF(CM)
V
CC
= V
= 5V
F
O
= EXT CLOCK
T
A
= 85
°
C
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
–3500
–
R
)
–3000
–2000
–1500
–1000
0
10
50
70
2489 F21
–2500
–500
40
90 100
20 30
60
80
V
IN(CM)
= V
V
CC
REF
= 5V
F
O
= EXT CLOCK
T
A
= 85
°
C
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
10
50
70
2489 F22
14
40
90 100
20 30
60
80
V
IN(CM)
= V
REF(CM)
V
CC
= V
REF
= 5V
V
IN
= 0V
F
O
= EXT CLOCK
RES = LOG 2 (V
REF
/NOISE
RMS
)
T
A
= 25
°
C, 85
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
–10
O
R
)
–5
5
10
20
10
50
70
2489 F24
0
15
40
90 100
20 30
60
80
V
CC
= 5V, V
REF
= 2.5V
V
CC
= V
REF
= 5V
V
IN(CM)
= V
REF(CM)
V
IN
F
O
= EXT CLOCK
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
10
50
70
2489 F25
14
40
90 100
20 30
60
80
V
IN(CM)
= V
REF(CM)
V
IN
F
O
T
= 25
°
C
RES = LOG 2 (V
REF
/NOISE
RMS
)
V
CC
= 5V, V
REF
= 2.5V, 5V
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