MS5541-CM Measurement Specialties Inc., MS5541-CM Datasheet - Page 12

• Manufacturer Part Number: MS5541-CM
• Description: MODULE 14 BAR PRESSURE MINI SNSR
• Manufacturer: Measurement Specialties Inc.

Specifications of MS5541-CM

• Pressure Type: Absolute
• Operating Pressure: 203.05 PSI, 14bar
• Output: Digital
• Voltage - Supply: 2.2 V ~ 3.6 V
• Termination Style: PCB
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 6.2 x 6.4mm Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 223-1099-2

Word 1
Word 2
Word 3
Word 4
SECOND-ORDER TEMPERATURE COMPENSATION
In order to obtain full temperature accuracy over the whole temperature range, it is recommended to
compensate for the non-linearity of the output of the temperature sensor. This can be achieved by correcting the
calculated temperature and pressure by a second order correction factor. The second-order factors are
calculated as follows:
DA5541C_001.doc
000055411194 ECN1037
DB12
DB9
DB9
DB8
Fig. 5: Flow chart for calculating the temperature and pressure to the optimum accuracy.
DB11
DB8
DB8
DB7
dT2 = dT – (dT/128*dT/128)/2
Low Temperatures
dT < 0
Fig. 4: Arrangement (Bit-pattern) of calibration data in Word1 to Word4.
DB10
DB7
DB7
DB6
yes
DB9
DB6
DB6
DB5
C4 (9 Bit)
C2/II (10 Bit)
C3 (10 Bit)
DB8
DB5
DB5
DB4
TEMP = (200 + dT2*(C6+100)/2
DB7
DB4
DB4
DB3
C1 (13 Bit)
Calculate temperature
February 19th, 2008
DB6
DB3
DB3
DB2
DB5
DB2
DB2
DB1
DB4
DB1
DB1
DB1
11
DB3
DB0
DB0
DB6
) (0.1° C)
dT2 = dT – (dT/128*dT/128)/8
DB11
DB2
DB5
DB5
High Temperatures
DB10
DB1
DB4
DB4
dT ≥ 0
C6 (7-Bit)
C5/II (6 Bit)
DB0
C5/I (6 Bit)
DB9
DB3
DB3
yes
DB12
DB8
DB2
DB2
C2/I (
DB11
DB7
DB1
DB1
3 Bit)
DB10
DB6
DB0
DB0
12