Datasheet

Counts
-53
-49
-45
-41
-37
-33
-29
-26
-22
-18
-14
-10
-6
-3
0
4
8
12
16
19
23
27
31
35
39
43
47
1800
1600
1400
1200
1000
800
600
400
200
0
AVDD=5V
PGA=1
DataRate=20SPS
12kSamples
=13s
(LSB)
Counts
-69
-63
-58
-52
-47
-41
-36
-30
-25
-20
-14
-9
-3
1
7
12
18
23
28
34
39
45
50
56
61
67
73
1800
1600
1400
1200
1000
800
600
400
200
0
AVDD=5V
PGA=32
DataRate=20SPS
12kSamples
=19s
(LSB)
Counts
-60
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
100
1600
1400
1200
1000
800
600
400
200
0
AVDD=3.3V
PGA=1
DataRate=20SPS
12kSamples
=18.5s
(LSB)
60
70
80
90 50
110
Counts
-80
-60
-45
-35
-25
-15
-5
5
15
25
35
1400
1200
1000
800
600
400
200
0
AVDD=3.3V
PGA=32
DataRate=20SPS
12kSamples
=22s
(LSB)
60
80 45
100
0.30
0.25
0.20
0.15
0.10
0.05
0
RMS Noise ( V)m
V (% of FSR)
IN
-100 -80 -60 -40 -20 10020 40 60 80
AVDD = 5V
PGA = 32
Data Rate = 5SPS
0
0.30
0.25
0.20
0.15
0.10
0.05
0
RMS Noise ( V)m
V (% of FSR)
IN
-100 -80 -60 -40 -20 10020 40 60 80
AVDD = 3.3V
PGA = 32
Data Rate = 5SPS
0
ADS1246
ADS1247
ADS1248
www.ti.com SBAS426G –AUGUST 2008–REVISED OCTOBER 2011
TYPICAL CHARACTERISTICS
At T
A
= +25°C, AVDD = 5V, V
REF
= 2.5V, and AVSS = 0V, unless otherwise noted.
NOISE HISTOGRAM PLOT NOISE HISTOGRAM PLOT
Figure 5. Figure 6.
NOISE HISTOGRAM PLOT NOISE HISTOGRAM PLOT
Figure 7. Figure 8.
RMS NOISE vs INPUT SIGNAL RMS NOISE vs INPUT SIGNAL
Figure 9. Figure 10.
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