參數(shù)資料
型號(hào): LTC2487
廠商: Linear Technology Corporation
英文描述: 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
中文描述: 16位2-/4-Channel型ADC PGA巡回賽,輕松驅(qū)動(dòng)和I2C接口
文件頁(yè)數(shù): 29/32頁(yè)
文件大小: 612K
代理商: LTC2487
LTC2487
2487fa
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
2487 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
2487 F29
100
10
0
30
50
70
90
V
IN(CM)
= V
V
CC
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
2487 F30
1000
3000
40
90 100
20 30
60
80
V
IN(CM)
= V
V
CC
= 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
2487 F31
–2500
–500
40
90 100
20 30
60
80
V
IN(CM)
= V
V
CC
= 5V
F
O
= EXT CLOCK
T
A
= 85
°
C
T
A
= 25
°
C
OUTPUT DATA RATE (READINGS/SEC)
0
–10
O
R
)
–5
5
10
20
10
50
70
2487 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
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
= 5V
F
O
= 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
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
2487 F35
14
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, 5V
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
REF
= GND
F
O
= EXT CLOCK
T
= 25
°
C
RES = LOG 2 (V
REF
/INL
MAX
)
2487 F36
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PDF描述
LTC2487CDEPBF 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
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LTC2487IDETRPBF 16-Bit 2-/4-Channel ADC with PGA, Easy Drive and I2C Interface
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