LTC2412 Linear Technology, LTC2412 Datasheet - Page 29

• Manufacturer Part Number: LTC2412
• Description: 2-Channel Differential Input 24-Bit No Latency DS ADC
• Manufacturer: Linear Technology

APPLICATIO S I FOR ATIO
Figure 23. Offset Error vs Output Data Rate and Temperature
Figure 25. –FS Error vs Output Data Rate and Temperature
–1000
–2000
–3000
–4000
–5000
–6000
–7000
500
450
400
350
300
250
200
150
100
50
22
20
18
16
14
12
10
Figure 27. Resolution (INL
vs Output Data Rate and Temperature
0
0
8
0
0
0
V
REF
REF
IN
IN
F
RESOLUTION = LOG
V
REF
REF
V
–2.5V < V
F
V
REF
REF
V
V
F
O
O
O
CC
CC
INCM
CC
INCM
IN
10 20 30 40 50 60 70 80 90 100
+
–
10 20 30 40 50 60 70 80 90 100
10 20 30 40 50 60 70 80 90 100
= EXTERNAL OSCILLATOR
OUTPUT DATA RATE (READINGS/SEC)
= EXTERNAL OSCILLATOR
OUTPUT DATA RATE (READINGS/SEC)
= EXTERNAL OSCILLATOR
OUTPUT DATA RATE (READINGS/SEC)
T
= 0V
+
= 1.25V
+
+
–
= 3.75V
–
= 5V
–
= 5V
= 5V
A
= 5V
= GND
= 5V
= 5V
= GND
= GND
= 85 C
= 2.5V
= 2.5V
U
IN
< 2.5V
U
T
T
2
A
A
(V
= 25 C
T
= 85 C
REF
T
A
A
= 25 C
= 25 C
/INL
T
A
MAX
= 85 C
MAX
W
)
1LSB)
2412 F23
2412 F25
2412 F27
U
Figure 24. +FS Error vs Output Data Rate and Temperature
7000
6000
5000
4000
3000
2000
1000
250
225
200
175
150
125
100
Figure 26. Resolution (Noise
vs Output Data Rate and Temperature
75
50
25
24
23
22
21
20
19
18
17
16
15
14
13
12
0
0
0
0
0
Figure 28. Offset Error vs Output
Data Rate and Reference Voltage
V
REF
REF
IN
IN
F
V
REF
V
V
F
T
V
REF
REF
V
V
F
RESOLUTION = LOG
O
CC
O
O
A
CC
INCM
IN
CC
INCM
IN
+
10 20 30 40 50 60 70 80 90 100
10 20 30 40 50 60 70 80 90 100
–
10 20 30 40 50 60 70 80 90 100
= EXTERNAL OSCILLATOR
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
= EXTERNAL OSCILLATOR
= 25 C
= EXTERNAL OSCILLATOR
+
–
= 3.75V
= 1.25V
= 0V
= 5V
+
= 0V
+
–
= 5V
= 5V
= 5V
= GND
= GND
= 5V
= GND
= 2.5V
= 2.5V
T
A
= 25 C
T
2
V
A
(V
REF
= 85 C
REF
T
= 2.5V
A
/NOISE
= 85 C
V
T
REF
A
= 25 C
RMS
RMS
= 5V
)
LTC2412
2412 F24
2412 F28
2412 F26
1LSB)
29
2412f