Datasheet

-55 -35
Temperature( C)°
200
100
0
-100
-200
-400
NormalizedGainError(ppm)
-15 5 12545 8525 65 105
-300
GainError
5Units
Offset
100
75
50
25
0
-50
NormalizedOffset( V)m
-25
0 0.5
f (MHz)
CLK
16
14
12
10
8
0
Power(mW)
1.0 1.5 4.52.5 3.52.0 3.0 4.0
6
4
2
-100
Offset( V)m
10
9
7
5
0
Occurences
3
2
-80
-60
-40
-20
0
20 40 60 80
100
-90
-70
-50
-30
-10
10 30 50 70 90
25Units
-0.50
GainError(%)
18
16
14
12
10
8
0
Occurences
6
2
4
-0.40
-0.30
-0.20
-0.10
0
0.10 0.20 0.30 0.40 0.50
-0.45
-0.35
-0.25
-0.15
-0.05
0.05 0.15 0.25 0.35 0.45
25Units
-1.0
OffsetDrift( V/ C)m °
90
80
70
60
50
40
0
Occurences
30
10
20
-0.8
-0.6
-0.4
-0.2
0
0.2 0.4 0.6 0.8 1.0
-0.9
-0.7
-0.5
-0.3
-0.1
0.1 0.3 0.5 0.7 0.9
25Units
Basedon20 C
IntervalsOvertheRange
40 Cto+85 C.
°
°- °
-2.0
GainDrift(ppm/ C)°
50
45
40
35
30
25
0
Occurences
20
10
15
5
-1.6
-1.2
-0.8
-0.4
0
0.4 0.8 1.2 1.6 2.0
-1.8
-1.4
-1.0
-0.6
-0.2
0.2 0.6 1.0 1.4 1.8
25Units
Basedon20 CIntervals
OvertheRange
40 Cto+85 C.
°
° °-
ADS1281
www.ti.com SBAS378D –AUGUST 2007–REVISED JUNE 2010
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, AVDD = +2.5V, AVSS = –2.5V, f
CLK
= 4.096MHz, VREFP = +2.5V, VREFN = –2.5V, DVDD = +3.3V, and
f
DATA
= 1000SPS, unless otherwise noted.
POWER vs f
CLK
GAIN AND OFFSET vs TEMPERATURE
Figure 13. Figure 14.
OFFSET HISTOGRAM GAIN ERROR HISTOGRAM
Figure 15. Figure 16.
OFFSET DRIFT HISTOGRAM GAIN DRIFT HISTOGRAM
Figure 17. Figure 18.
Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): ADS1281