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參數(shù)資料
| 型號(hào)： | LTC2493IDEPBF |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 24-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface |
| 中文描述： | 24位2-/4-Channel ADC，具有易于驅(qū)動(dòng)的輸入電流取消和I2C接口 |
| 文件頁(yè)數(shù)： | 29/32頁(yè) |
| 文件大?。?/td> | 588K |
| 代理商： | LTC2493IDEPBF |
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LTC2493
2493fa
Figure 28. Input Normal Mode
Rejection 2x Speed Mode with and
Without Running Averaging
Figure 29. Offset Error vs Output Data
Rate and Temperature
Figure 30. +FS Error vs Output Data
Rate and Temperature
Figure 31.–FS Error vs Output Data
Rate and Temperature
Figure 32. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 33. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 35. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 36. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 34. Offset Error vs Output
Data Rate and Temperature
applicaTions inForMaTion
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
48
–70
–80
–90
–100
–110
–120
–130
–140
54
58
2493 F28
50
52
56
60
62
N
NO AVERAGE
WITH
RUNNING
AVERAGE
OUTPUT DATA RATE (READINGS/SEC)
–10
O
R
)
10
30
50
0
20
40
20
40
60
80
2493 F29
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
2493 F30
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
2493 F31
–2500
–500
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
10
R
12
16
18
20
24
10
50
70
2493 F32
14
22
40
90 100
20 30
60
80
V
IN(CM)
= V
V
CC
REF
= 5V
V
IN
= 0V
F
= EXT CLOCK
RES = LOG 2 (V
REF
/NOISE
RMS
)
T
A
= 85
°
C
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
22
10
50
70
2493 F33
14
20
40
90 100
20 30
60
80
T
A
= 85
°
C
T
A
= 25
°
C
V
IN(CM)
= V
REF(CM)
V
CC
= V
= 5V
F
= EXT CLOCK
RES = LOG 2 (V
REF
/INL
MAX
)
OUTPUT DATA RATE (READINGS/SEC)
0
–10
O
R
)
–5
5
10
20
10
50
70
2493 F34
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
20
24
10
50
70
2493 F35
14
22
40
90 100
20 30
60
80
V
IN(CM)
= V
REF(CM)
V
IN
F
O
= EXT CLOCK
T
= 25
°
C
RES = LOG 2 (V
REF
/NOISE
RMS
)
V
CC
= 5V, V
REF
= 2.5V
V
CC
= V
REF
= 5V
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
22
10
50
70
2493 F36
14
20
40
90 100
20 30
60
80
V
CC
= 5V, V
REF
= 2.5V
V
IN(CM)
= V
REF(CM)
V
IN
REF
–
= GND
F
O
= EXT CLOCK
T
= 25
°
C
RES = LOG 2 (V
REF
/INL
MAX
)
V
CC
= V
REF
= 5V
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