The MS5540C is an SMD hybrid device that includes a high-precision pressure sensor resistant to pressure and an ADC interface integrated circuit. It is a miniature version of the MS5534C barometer/altimeter module and provides 16-bit voltage that depends on temperature and pressure parameters.

Features:

• Low voltage and low power device, with an automatic power-off switch.
• 3-wire interface that can accommodate various communications with the microcontroller.
• Compared to the MS5534A, the pressure drop range (10 mbar) has been improved.
• Relative to the MS5540B, the MS5534B has been upgraded from the previous 15-bit output to 16-bit digital output.
• Other improvements include ESD sensitivity, power consumption, and switch accuracy.
• The MS5540C software is compatible with MS5534A, MS5534B, MS5534C, MS5540B.
• Additionally, the MS5540C is compatible with the MS54xx series from its external dimensions to the pressure sensor.
• The sensor's adhesive can be used in waterproof watches without any additional protection at a water depth of 100 meters.

Applications:

• Portable altimeter/barometer system.
• Weather control system or watch in extreme adventure conditions.
• Power wait < GPS 0.1uA receiver.

Specifications:

• Absolute pressure range: 10 - 1100 mbar.
• Resolution 0.1 mbar and 0.013.
• Chip memory of 6 parameters for compensation software.
• Piezo resistive silicon micro sensor.
• Integrated micro pressure sensor 6.2x6.4 mm.
• 16-bit ADC, SPI interface.
• 3 serial interfaces.
• 1 system clock (32.768 kHz).
• Operating voltage 2.2 V ~ 3.6 V.
• Operating current < 5uA.
• Compatible with RoHS & Pb-free.
• Operating temperature: -40 ~ C ~ +85 ~ C.
• Waterproof, maximum water depth of 100 meters (ISO2281).
• Board size: 18*16mm.