LTC2495
30
2495f
Figure 29. Input Normal Mode
Rejection 2x Speed Mode with and
Without Running Averaging
Figure 30. Offset Error vs Output Data
Rate and Temperature
Figure 31. +FS Error vs Output Data
Rate and Temperature
Figure 32.–FS Error vs Output Data
Rate and Temperature
Figure 33. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 34. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 36. Resolution (Noise
RMS
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 37. Resolution (INL
MAX
≤ 1LSB)
vs Output Data Rate and Temperature
Figure 35. 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
2495 F29
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
2495 F30
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
2495 F31
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
2495 F32
–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
2495 F35
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
V
IN(CM)
= V
V
CC
REF
= 5V
V
IN
= 0V
F
= EXT CLOCK
RES = LOG 2 (V
REF
/NOISE
RMS
)
T
A
= 25
°
C, 85
°
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
REF(CM)
V
CC
= V
= 5V
F
= EXT CLOCK
RES = LOG 2 (V
REF
/INL
MAX
)
OUTPUT DATA RATE (READINGS/SEC)
0
10
R
12
16
18
10
50
70
2495 F36
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
)
2495 F37