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SBAS424C –JUNE 2009–REVISED MARCH 2010
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, AVDD = +2.5V, AVSS = –2.5V, DVDD = 3.3V, VREF = 2.5V, VREFN = AVSS, fCLK = 7.3728MHz, and
fDATA = 60SPS, unless otherwise noted.
OFFSET vs TEMPERATURE
GAIN vs TEMPERATURE
100
75
500
400
5 Units
5 Units
300
50
200
100
25
0
0
-100
-200
-300
-400
-500
-25
-50
-75
-55 -35 -15
5
25
45
65
85
105 125
-55 -35 -15
5
25
45
65
85
105 125
Temperature (°C)
Temperature (°C)
Figure 14.
Figure 15.
OFFSET DRIFT DISTRIBUTION HISTOGRAM
GAIN DRIFT DISTRIBUTION HISTOGRAM
30
25
20
15
10
5
20
16
12
8
60 Units From Two Production Lots
60 Units From Two Production Lots
4
0
0
Gain Drift (ppm/°C)
Offset Drift (mV/°C)
Figure 16.
Figure 17.
INTEGRAL NONLINEARITY vs REFERENCE VOLTAGE
GAIN ERROR AND OFFSET vs REFERENCE VOLTAGE
3.0
50
150
100
50
40
30
2.5
2.0
1.5
1.0
0.5
0
20
10
0
0
-10
-20
-30
-40
-50
-50
-100
-150
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Reference Voltage (V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Reference Voltage (V)
Figure 18.
Figure 19.
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