Datasheet

www.ti.com
Output Code (LSB)
Occurance
180
160
140
120
100
80
60
40
20
0
−
12
−
6
1260
PGA = 1
Data Rate = 80SPS
Output Code (LSB)
Occurance
50
45
40
35
30
25
20
15
10
5
0
−
40
−
20 0 20
40
PGA = 128
Data Rate = 80SPS
OffsetDrift(nV/ C)°
-
600
-
500
-
400
-
300
-
200
-
100
0
100 200 300 400 500 600
35
30
25
20
15
10
5
0
Counts
PGA=1
DataRate=10SPS
90Samplesfrom3Lots
OffsetDrift(nV/ C)°
-500
-400
-300
-200
-100
0
100 200 300 400 500
35
30
25
20
15
10
5
0
Counts
PGA=1
DataRate=10SPS
90Samplesfrom3Lots
GainDrift(ppm/ C)°
-1.2
-1.1
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
18
16
14
12
10
8
6
4
2
0
Counts
PGA=1
DataRate=10SPS
90Samplesfrom3Lots
GainDrift(ppm/ C)°
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
20
18
16
14
12
10
8
6
4
2
0
Counts
PGA=1
DataRate=10SPS
90Samplesfrom3Lots
ADS1232
ADS1234
SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25 ° C, AVDD = DVDD = VREFP = 5V, and VREFN = AGND, unless otherwise noted.
NOISE HISTOGRAM NOISE HISTOGRAM
Figure 7. Figure 8.
OFFSET DRIFT ( – 40 ° C to +25 ° C) OFFSET DRIFT (+25 ° C to +105 ° C)
Figure 9. Figure 10.
GAIN DRIFT ( – 40 ° C to +25 ° C) GAIN DRIFT (+25 ° C to +105 ° C)
Figure 11. Figure 12.
Copyright © 2005 – 2008, Texas Instruments Incorporated 9
Product Folder Link(s): ADS1232 ADS1234