MS5525DSO

Digital Pressure and Altimeter Sensor Modules, Differential, 1 psi, 24 bit ADC, ±0.5 %FSS Pressure Accuracy.

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SiderionDoc_MS5525.pdf

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Features

• 5V - 10mA power supply

• < 2µA in stand-by mode

• ± 1 PSI Pressure range

• ±0.0025 PSI (±20 µbar) accuracy

• ±1.5°C temperature accuracy

• Max 350 km/h at sea level

• I²C(400KHz) /SPI(2MHz) interfaces

Applications

• UAVs and Drones

• RC aircrafts

• Spirometers

• Ground vehicles

In production

Description

The Siderion MS5525DSO Airspeed Sensor is a compact, high-resolution and factory-calibrated digital barometric pressure sensor ideal for precise altitude, pressure, and airspeed measurements. It integrates a piezoresistive barometric sensor, a 24-bit ADC, and a DSP to cover a pressure range of 10 to 1200 mbar, enabling altitude measurements with a resolution of ~20 cm. When used as an airspeed sensor in combination with a Pitot tube, it accurately detects differential pressure for airspeed calculations in applications such as drones, aviation, and aerodynamics. The sensor supports both I²C and SPI communication interfaces. The MS5525DSO Airspeed Sensor operates across a temperature range from -40°C to +70°C.

Device summary

Order ref code	Temperature range [°C]	Product size [mm]	Weight [g]
MS5525DSO	-40 to +85	26.0 x 33.0 x 10.0	7

Product description & pinout

Pin description

SPI Port

Pin	Name	Type	Function
A1	5V IN	P	5V input
A2	SPI SCK	I	SPI Clock
A3	SPI MISO	O	SPI Master Input, Slave Output
A4	SPI MOSI	I	SPI Master Output, Slave Input
A5	SPI CS	I	SPI Chip Select
A6	GND	P	Ground reference

P : Power / I : Input / O : Output

I2C Port

Mechanical Drawings