Products
Digital barometric sensor module waterproof high precision water depth 100 meters miniature barometer -70063
product detail
The MS5540C is a SMD-hybrid device including a precision piezoresistive pressure sensor and an ADC-Interface IC. The
MS5540C HE is the high endurance version of MS5540C sensor.
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 micro controller.
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.
parameter:
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10 - 1100 mbar absolute pressure range
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6 coefficients for software compensation stored on chip
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Piezoresistive silicon micromachined sensor
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Integrated miniature pressure sensor 6.2 x 6.4 mm
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16 Bit ADC
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3-wire serial interface
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1 system clock line (32.768 KHz)
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Low voltage and low power consumption
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High Endurance (HE version)
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Working temperature: -40~85 Degree
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Resolution: 0.1 MBAR and 0.01 Degree
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Accuracy: -2~5 MBAR ± 2 Degree
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Response time: 35 MS
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Working voltage: 2.2V~3.6V
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Working current: <5UA
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ROHS compatible & PB-FREE
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Waterproof, maximum water depth 100 meters
NOTES：
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VDD: Power supply pin, recommended 3V
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MCLK: Host clock input 32.768KHZ
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SCLK: SPI clock input
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DIN: Serial data input
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DOUT: Serial data outpu
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