Low Power Altimeter Module with Range 300 to 1100 mbar Altimeter Module

 Low Power Altimeter Module with Range 300 to 1100 mbar Altimeter Module     Model Number :  MS5803-02BA 
  GENERAL DESCRIPTION
The MS5540C is a SMD-hybrid device including a precision piezoresistive pressure sensor and an ADCInterface IC. It is a miniature version of the MS5534C barometer/altimeter module and provides a 16 Bit data word from a pressure and temperature dependent voltage. MS5540C 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.
Compared to MS5534A the pressure range (measurement down to 10 mbar) has been improved. The MS5540C
is fully software compatible to the MS5534C and previous versions of MS5540. In addition, the MS5540C is from
its outer dimensions compatible to the MS54XX series of pressure sensors. Compared to the previous version
the ESD sensitivity level has been improved to 4kV on all pins. The gel protection of the sensor provides a water
protection sufficient for 100 m waterproof watches without any additional protection.
Benefit   • 10 - 1100 mbar absolute pressure range
• 6 coefficients for software compensation stored on-chip
• Piezoresistive silicon micromachined sensor
• Integrated miniature pressure sensor 6.2 x 6.4 mm
• 16 Bit ADC
• 3-wire serial interface
• 1 system clock line (32.768 kHz)
• Low voltage and low power consumption   Features   Resolution 0.1 mbar   Supply voltage 2.2 V to 3.6 V
Low supply current < 5 µA   Standby current < 0.1 µA   -40°C to +85°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. FAQ   Q:Hong long is delivery time for an order?
A:We usually send an order out in 1-7days after we get payment.
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