LPS331AP Datasheet, PDF (19/36 Pages) STMicroelectronics – MEMS pressure sensor: 260-1260 mbar absolute digital output barometer

LPS331AP
Register description
Table 15. Pressure resolution configuration
AVGP3
AVGP2
AVGP1
AVGP0
Nr. internal average
1
0
0
1
1
0
1
0
384
512⁽¹⁾
1. Register configuration 7Ah not allowed with ODR = 25Hz/25Hz (Register CTRL_REG1). For ORD
25Hz/25Hz the suggested configuration for RES_CONF is 6Ah.
Table 16. Temperature resolution configuration
AVGT2
AVGT1
AVGT1
Nr. internal average
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
1
2
4
8
16
32
64
128⁽¹⁾
1. Register configuration 7Ah not allowed with ODR = 25Hz/25Hz (Register CTRL_REG1). For ORD
25Hz/25Hz the suggested configuration for RES_CONF is 6Ah.
Table 17. Pressure resolution
RES_CONF (hex)
RMS noise⁽¹⁾
Unit
70
71
72
73
74
75
76
77
78
79
7A⁽²⁾
0.450
0.320
0.230
0.160
0.110
0.080
0.060
0.040
0.030
0.025
0.020
mbar
1. Rms noise is calculated as standard deviation of 10 data points.
2. This configuration is not allowed for ODR = 25Hz/25HZ (register CTRL_REG1). For ORD = 25 Hz/ 25 Hz
the suggested configuration for RES_CONF is 6Ah.
Doc ID 022112 Rev 7
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