ADS1230
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SBAS366–OCTOBER 2006
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, AVDD = DVDD = REFP = 5V, and REFN = AGND, unless otherwise noted.
NOISE HISTOGRAM
NOISE HISTOGRAM
500
450
400
350
300
250
200
150
100
50
250
200
150
100
50
PGA = 128
Data Rate = 10SPS
PGA = 128
Data Rate = 80SPS
0
0
-5
-4
-3
-2
-1
0
-7 -6 -5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
Output Code (LSB)
Output Code (LSB)
Figure 7.
Figure 8.
OFFSET vs TEMPERATURE
GAIN ERROR vs TEMPERATURE
1000
800
600
400
200
0
-0.02
-0.03
-0.04
-0.05
-0.06
PGA = 64
Data Rate = 10SPS
-200
-400
-600
-800
PGA = 64
Data Rate = 10SPS
-50 -25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
Figure 9.
Figure 10.
NOISE vs INPUT SIGNAL
NOISE vs INPUT SIGNAL
50
45
40
35
30
25
20
15
10
5
120
100
80
PGA = 64
Data Rate = 80SPS
60
PGA = 64
Data Rate = 10SPS
0
40
-40
-30
-20
-10
0
10
20
30
40
-40
-30
-20
-10
0
10
20
30
40
VIN (mV)
VIN (mV)
Figure 11.
Figure 12.
8
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