Datasheet

LTC2412
29
2412f
APPLICATIO S I FOR ATIO
WUU
U
Figure 23. Offset Error vs Output Data Rate and Temperature
Figure 24. +FS Error vs Output Data Rate and Temperature
Figure 25. –FS Error 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 28. Offset Error vs Output
Data Rate and Reference Voltage
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
OFFSET ERROR (ppm OF V
REF
)
2412 F23
500
450
400
350
300
250
200
150
100
50
0
T
A
= 85°C
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
INCM
= 2.5V
V
IN
= 0V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
+FS ERROR (ppm OF V
REF
)
2412 F24
7000
6000
5000
4000
3000
2000
1000
0
T
A
= 85°C
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
IN
+
= 3.75V
IN
–
= 1.25V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
–FS ERROR (ppm OF V
REF
)
2412 F25
0
–1000
–2000
–3000
–4000
–5000
–6000
–7000
T
A
= 85°C
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
IN
+
= 1.25V
IN
–
= 3.75V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
RESOLUTION (BITS)
2412 F26
24
23
22
21
20
19
18
17
16
15
14
13
12
T
A
= 85°C
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
INCM
= 2.5V
V
IN
= 0V
F
O
= EXTERNAL OSCILLATOR
RESOLUTION = LOG
2
(V
REF
/NOISE
RMS
)
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
RESOLUTION (BITS)
2412 F27
22
20
18
16
14
12
10
8
T
A
= 85°C
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
INCM
= 2.5V
–2.5V < V
IN
< 2.5V
F
O
= EXTERNAL OSCILLATOR
RESOLUTION = LOG
2
(V
REF
/INL
MAX
)
T
A
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
0 102030405060708090100
OFFSET ERROR (ppm OF V
REF
)
2412 F28
250
225
200
175
150
125
100
75
50
25
0
V
REF
= 5V
V
CC
= 5V
REF
+
= GND
V
INCM
= 2.5V
V
IN
= 0V
F
O
= EXTERNAL OSCILLATOR
T
A
= 25°C
V
REF
= 2.5V