Product Description

The MS5540C is a SMD hybrid device consisting of a high accuracy piezoresistive pressure sensor and an ADC interface IC. It is a miniature version of the MS5534C barometer/altimeter module and provides 16-bit pressure and temperature parameters dependent on voltage. The MS5540C is a low voltage, low power device with an automatic power off switch. The 3-wire interface allows for various communication with microprocessors. Compared to the MS5534A, the pressure range is improved (measurement down to 10 mbar). Compared to the MS5534B, the MS5540B has a 16-bit digital output instead of the previous 15-bit output. Other improvements include ESD sensitivity, current consumption and converter accuracy. The MS5540C is software compatible with the MS5534A, MS5534B, MS5534C and MS5540B. In addition, the MS5540C is compatible with the MS54xx series of pressure sensors from its outer dimensions. The sensor's rubber protection allows use in waterproof watches at a depth of 100 meters without any other protection.

Product Applications 

*Portable altimeter/barometer systems *Weather control systems *Outdoor adventure or multi-mode watches

*Standby current < 0.1uA *GPS receivers

Package Contents:

1 xMS5540-CM Digital Barometric Pressure Sensor

Product Features   

Low voltage, low power device, and has an automatic power-off switch.

The 3-wire interface can meet various communications with microprocessors.

Compared with the MS5534A, the pressure range of the pressure drop (10 mbar) has been improved. Relative to the MS5540B, the MS5534B has been converted from the previous 15-bit output to a 16-bit digital output. Other improvements include ESD sensitivity, current consumption, and switching accuracy.

The MS5540C software is compatible with the MS5534A, MS5534B, MS5534C, MS5540B. In addition, the MS5540C is compatible with the MS54xx series from its external dimensions to the pressure sensor.

Absolute pressure range: 10-1100 mbar

Chip memory 6 parameters for software compensation

16-bit ADC, SPI interface

1 system clock (32.768 kHz)

Operating voltage: DC 2.2 V-3.6 V

Operating current: <5uA

Operating temperature: -40℃-+85℃

Waterproof, maximum water depth 100 meters (ISO2281)

 Actual image of the product

Company Information