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PDF MS5536C Data sheet ( Hoja de datos )
| Número de pieza | MS5536C | |
| Descripción | SMD Gage Pressure Module | |
| Fabricantes | TE | |
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MS5536C
SMD Gage Pressure Module
SPECIFICATIONS
Pressure range -400 to 1000 mbar
(Optional -1000 to 400 mbar)
0.1 mbar Resolution
Factory Calibrated (coefficients for software
compensation store on-chip)
3-wire serial interface
Low voltage / low power
MS5536C is a family of high-resolution factory calibrated
pressure sensors. The devices include a piezoresistive pressure
sensor and an ADC-Interface IC. The 3-wire serial interface
ensures simple communication with any microcontroller. The
devices provide digital pressure and temperature information as
16-Bit data word each. In addition 64-Bit of individually calibrated
compensation coefficients are stored allowing for a highly
accurate software compensation of process spread and
temperature effects.
The devices have a very low standby current and automatically
enter power down mode after each conversion. The optimum
compromise of refresh rate and average current consumption can
be defined by the application software.
SENSOR SOLUTIONS /// MS5536C
09/2015
Page 1
1 page  
MS5536C
SMD Gage Pressure Module
ELECTRICAL CHARACTERISTICS
DIGITAL INPUTS
Parameter
Input High Voltage
Input Low Voltage
Signal Rise Time
Signal Fall Time
Symbol
VIH
VIL
tr
tf
Conditions
Min
80% VDD
0% VDD
Typ Max Unit
100% VDD
V
20% VDD
V
200 ns
200 ns
DIGITAL OUTPUTS
Parameter
Output High Voltage
Output Low Voltage
Signal Rise Time
Signal Fall Time
AD-CONVERTER
Parameter
Resolution
Linear Range
Conversion Time
INL
Symbol
VOH
VOL
tr
tf
Conditions
Isource = 0.6 mA
Isink = 0.6 mA
(T = -40 °C .. 85 °C VDD = 2.2 V .. 3.6 V)
Min Typ Max Unit
80% VDD
100% VDD
V
0% VDD
20% VDD
V
200 ns
200 ns
Symbol Conditions
MCLK = 32.768 kHz
Within linear range
Min
4'000
-5
(T = -40 °C .. 85 °C VDD = 2.2 V .. 3.6 V)
Typ Max Unit
16 Bit
40'000
LSB
35 ms
+5 LSB
SENSOR SOLUTIONS /// MS5536C
09/2015
Page 5
5 Page 
MS5536C
SMD Gage Pressure Module
PRESSURE AND TEMPERATURE MEASUREMENT
The sequence of reading pressure and temperature as well as of performing the software compensation is depicted
in flow chart, Fig. 3 and Fig. 5.
First WORD1 to WORD4 are read through the serial interface. This can be done once after reset of the
microcontroller that interfaces to the MS5536C. Next the compensation coefficients C1 to C6 are extracted using
Bit-wise logical- and shift-operations (refer to Fig. 4 for the Bit-pattern of word 1 to word 4).
For the pressure measurement, the microcontroller has to read the 16-Bit values for pressure (D1) and temperature
(D2) via the serial interface in a loop (for instance once every second). Then, the compensated pressure is
calculated out of D1, D2 and C1 to C6 according to the algorithm in Fig. 3 (possibly using quadratic temperature
compensation according to Fig. 5). All calculations can be performed with signed 16-Bit variables. Results of
multiplications may be up to 32-Bit long (+sign). In the flow according to Fig. 3 each multiplication is
followed by a division. This division can be performed by Bit-wise shifting (divisors are to the power of 2). It is
ensured that the results of these divisions are less than 65536 (16-Bit).
For the timing of signals to read out WORD1 to WORD4, D1, and D2 please refer to the paragraph ‘Serial
Interface’.
SENSOR SOLUTIONS /// MS5536C
09/2015
Page 11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MS5536C.PDF ] | |
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