10 - 1100 mbar air pressure sensor Barometer pressure sensor for Weather control systems

      10 - 1100 mbar  air pressure sensor Barometer pressure sensor for Weather control systems                                      Model Number :  MS5534C                                       GENERAL DESCRIPTION
The MS5534C is a SMD-hybrid device including a piezoresistive pressure sensor and an ADC-Interface IC. It
provides a 16 Bit data word from a pressure and temperature dependent voltage. Additionally the module
contains 6 readable coefficients for a highly accurate software calibration of the sensor. MS5534C is a low
power, low voltage device with automatic power down (ON/OFF) switching. A 3-wire interface is used for all
communications with a microcontroller.
The MS5534C is fully software compatible to the previous versions (MS5534A and MS5534B). Compared to the
previous versions the ESD sensitivity level has been improved to 4kV on all pin Benefit   • 10 - 1100 mbar absolute pressure range
• 6 coefficients for software compensation stored on-chip
• Piezoresistive silicon micromachined sensor
• Integrated miniature pressure sensor 9 x 9 mm
• 16 Bit ADC
• 3-wire serial interface
• 1 system clock line (32.768 kHz)
• Low voltage and low power consumption   Features   Supply voltage 2.2 V to 3.6 V
Low supply current
  -40°C to +125°C operation temperature   No external components required
Application   Mobile altimeter / barometer systems
Weather control systems
Adventure or multi-mode watches
GPS receivers ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Conditions	Min	Max	Unit	Notes
Supply voltage	VDD	Ta = 25 °C	-0.3	4	V
Storage temperature	TS		-40	+85	℃	1
Overpressure	P	Ta = 25 °C		10	bar	2

  RECOMMENDED OPERATING CONDITIONS

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Operating pressure range	P		10		1100	bar
Supply voltage	VDD		2.2	3.0	3.6	V
Supply current, average (1) during conversion (2) standby (no conversion)	Iavg Isc Iss	VDD = 3.0 V		4 1	0.1	µA mA µA
Current consumption into MCLK (3)		MCLK = 32.768 kHz			0.5	> µA
Operating temperature range	T		-40		+85	℃
Conversion time	tconv	MCLK = 32.768 kHz			35	ms
External clock signal (4)	MCLK		30.000	32.768	35.000	kHz
Duty cycle of MCLK			40/60	50/50	60/40	%
Serial data clock	SCLK				500	kHZ

 Electrical Cahracteristics Pressure Output Characteristics With the calibration data stored in the interface IC of the MS5540C, the following characteristics can be achieved:
NOTES
1) A stable pressure reading of the given resolution requires taking the average of 2 to 4 subsequent pressure
values due to noise of the ADC.
2) Maximum error of pressure reading over the pressure range.
3) Maximum error of pressure reading over the pressure range after offset adjustment at one pressure point.
4) With the second-order temperature compensation as described in Section "FUNCTION". See next section
for typical operating curves.
5) The long-term stability is measured with non-soldered devices. Block Diagram