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LMES025U Datasheet(PDF) 8 Page - Sensortechnics GmbH

Part No. LMES025U
Description  digital low differential pressure sensors
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Maker  SENSORTECHNICS [Sensortechnics GmbH]
Homepage  http://www.sensortechnics.com
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LMES025U Datasheet(HTML) 8 Page - Sensortechnics GmbH

 
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E / 11822 / C
LME series – digital low differential pressure sensors
Page 8/12
Subject to change without notice
www.first-sensor.com
contact@first-sensor.com
SPI – Serial Peripheral Interface (cont.)
Data read – temperature
The on-chip temperature sensor changes +95 counts/°C over the
operating range. The temperature data format is 15-bit plus sign in
two’s complement format. To read temperature, use the following
sequence:
Step
Hexadecimal
Binary
Description
1
0x24
B00100010
Poll current temperature measurement
2
0x14
B00010100
Send result to data register
3
0x98
B10011000
Read data register
From the digital sensor output, the actual temperature can be
calculated as follows:
Temperature [°C] =
TS - TS
0 [counts]
+ T
0 [°C]
Scale factor
TS
[counts
]
°C
where
TS is the actual sensor readout;
TS
0 is the sensor readout at known temperature T0
(13);
Scale factor
TS = 95 counts/°C
Specification notes (cont.)
(13) To be defined by user. The results show deviation (in °C) from the offset
calibrated temperature.


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