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ILPS22QSTR データシート(PDF) 14 Page - STMicroelectronics

部品番号 ILPS22QSTR
部品情報  Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor
PDF  57 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ILPS22QSTR データシート(HTML) 14 Page - STMicroelectronics

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4.5
Interpreting temperature readings
The temperature data are stored in two registers: TEMP_OUT_H (2Ch) and TEMP_OUT_L (2Bh).
The value is expressed as two's complement. To obtain the temperature in °C, take the two’s complement of the
complete 16-bit word and then divide by the sensitivity 100 LSB/°C.
Figure 7. Temperature readings
0 0 0 0 1 0 0 1
1 1 0 0 0 1 0 0
TEMP_OUT_H
TEMP_OUT_L
Temperature value (LSB) = TEMP_OUT_H (2Ch) & TEMP_OUT_L (2Bh)
= 09C4 = 2500 LSB (decimal signed)
Temperature (°C) =
Temperature Value (LSB)
Sensitivity
=
2500 LSB
100 LSB/°C
= 25.00°C
ILPS22QS
Interpreting temperature readings
DS13431 - Rev 3
page 14/57



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