DESCRIPTION

The MS5801-01B is a new generation of high resolution altimeter sensors with SPI & I2C interface. It is optimized for depth meters and altimeters with an altitude resolution of 10 cm. The sensor module includes a high linearity pressure sensor and an ultra low power 24 bit ADC with internal factory calibration coefficients. It provides a precise digital 24 bit pressure and temperature value and different operation modes that allow the user to optimize for conversion spped and current consumption. A high resolution temperture output allows the implementation of a thermometer function with no additional sensor. Gel protection and an antimagnetic stainless steel cap allows the use in 100m waterproof altimeter/compass watches.

FEATURES

• Pressure range from 10 to 1300 mbar
• High resolution of 10 cm
• Fast conversion down to 1 ms
• Supply voltage 1.8 to 3.6V
• Integrated temperature sensor
• Temperature range -40°C to 125°C
• I2C or SPI interface up to 20 MHz
• No external components (internal oscillator)
• RoHS-compatible & Pb-free
• Low power, 1 µA (standby <0.15 a="" li="">
• Hermetically sealable for outdoor devices

TYPICAL USES

• Mobile altimeter/barometer systems
• Weather control systems
• Adventure or multi-mode watches
• Variometers
• Dataloggers