Datasheet

LTC2497
25
2497fa
OUTPUT DATA RATE (READINGS/SEC)
0
10
RESOLUTION (BITS)
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
REF(CM)
V
CC
= V
REF
= 5V
f
O
= EXT CLOCK
RES = LOG 2 (V
REF
/INL
MAX
)
2497 F24
OUTPUT DATA RATE (READINGS/SEC)
0
10
RESOLUTION (BITS)
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
= 0V
REF
–
= GND
f
O
= EXT CLOCK
T
A
= 25°C
RES = LOG 2 (V
REF
/INL
MAX
)
2497 F27
Figure 20. Offset Error vs Output Data
Rate and Temperature
Figure 21. +FS Error vs Output Data
Rate and Temperature
Figure 22.–FS Error vs Output Data
Rate and Temperature
Figure 23. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 24. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 26. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 27. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 25. Offset Error vs Output
Data Rate and Temperature
applicaTions inForMaTion
OUTPUT DATA RATE (READINGS/SEC)
–10
OFFSET ERROR (ppm OF V
REF
)
10
30
50
0
20
40
20 40 60 80
2497 F20
100100 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
+FS ERROR (ppm OF V
REF
)
500
1500
2000
2500
3500
10 50 70
2497 F21
1000
3000
40 90 100
20 30 60 80
V
IN(CM)
= V
REF(CM)
V
CC
= V
REF
= 5V
f
O
= EXT CLOCK
T
A
= 85°C
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
–3500
–FS ERROR (ppm OF V
REF
)
–3000
–2000
–1500
–1000
0
10 50 70
2497 F22
–2500
–500
40 90 10020 30 60 80
V
IN(CM)
= V
REF(CM)
V
CC
= V
REF
= 5V
f
O
= EXT CLOCK
T
A
= 85°C
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
10
RESOLUTION (BITS)
12
16
18
10
50
70
2497 F23
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
OFFSET ERROR (ppm OF V
REF
)
–5
5
10
20
10 50 70
2497 F25
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
= 0V
f
O
= EXT CLOCK
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
10
RESOLUTION (BITS)
12
16
18
10
50
70
2497 F26
14
40
90
100
20
30
60 80
V
IN(CM)
= V
REF(CM)
V
IN
= 0V
f
O
= EXT CLOCK
T
A
= 25°C
RES = LOG 2 (V
REF
/NOISE
RMS
)
V
CC
= 5V, V
REF
= 2.5V, 5V