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LPS22DF Scheda tecnica(PDF) 40 Page - STMicroelectronics

Il numero della parte LPS22DF
Spiegazioni elettronici  Low-power and high-precision MEMS nano pressure sensor: 260-1260 hPa absolute digital output barometer
PDF  54 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LPS22DF Scheda tecnica(HTML) 40 Page - STMicroelectronics

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9.15
RPDS_L (1Ah)
Pressure offset (LSB data)
7
6
5
4
3
2
1
0
RPDS7
RPDS6
RPDS5
RPDS4
RPDS3
RPDS2
RPDS1
RPDS0
RPDS[7:0]
This register contains the low part of the pressure offset value. Default value: 00000000
The pressure offset value is 16-bit data that can be used to implement one-point calibration (OPC) after soldering.
This value is composed of RPDS_H (1Bh) and RPDS_L (1Ah). The value is expressed as 2’s complement.
The customer can perform a one-point calibration after soldering (recommended) and the offset coefficient can be
stored for OPC in register RPDS (1Ah, 1Bh). These stored offset values are directly added to the compensated
pressure data in the block diagram below. To give better flexibility to the user, the OPC value can be written twice
in the same register map. For further details, refer to the application note.
Figure 24. One-point calibration
9.16
RPDS_H (1Bh)
Pressure offset (MSB data)
7
6
5
4
3
2
1
0
RPDS15
RPDS14
RPDS13
RPDS12
RPDS11
RPDS10
RPDS9
RPDS8
RPDS[15:8]
This register contains the high part of the pressure offset value. Default value: 00000000
LPS22DF
RPDS_L (1Ah)
DS13316 - Rev 1
page 40/54



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