Measuring Temperature Accurately with Semiconductor Sensors

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Max. Temperature Error (±°C)
±0.5°C Semiconductor Temperature Sensor
Accuracy @ 3.3V
Maximum
Average
1.2
1
0.8
0.6
0.4
0.2
0
-40
-20
0
20
40
60
Temperature (°C)
80
100
120
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±0.5°C Semiconductor Temperature Sensor Accuracy
Across VDD, Including Noise
1.6
Max. Temperature Error (±°C)
1.4
1.2
1
1.9V + Noise
0.8
3.0V to 3.6V + Noise
0.6
3.3V + Noise
3.3V
0.4
0.2
0
-40
-20
0
20
40
60
Temperature (°C)
80
100
120
±0.5°C Semiconductor Temperature Sensor Accuracy
Across VDD, Including Noise
1.6
Max. Temperature Error (±°C)
1.4
1.2
1
1.9V + Noise
3.0V to 3.6V + Noise
0.8
3.3V + Noise
0.6
3.3V
0.4
Si7055
0.2
0
-40
-20
0
20
40
60
Temperature (°C)
80
100
120
Si705x vs. Resistance Temperature Detectors (RTDs)
2.2
Max. Temperature Error (±°C)
2
1.8
1.6
1.4
2x DIN 43760
1.2
DIN 43760
1
DIN EN 60751 Class B
0.8
1/2 DIN 43760
0.6
Si7053
0.4
0.2
0
-40
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10
60
Temperature (°C)
110
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