MS5803-02BA Series Pressure Transducer

MS5803-02BA Series Pressure Transducer Description: The MS5803-02BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI and I2C bus interface. It is optimized for altimeters and variometers with an altitude resolution of 20 cm. The sensor module includes a high linearity pressure sensor and an ultra […]

MS5803-02BA Series Pressure Transducer

Description: The MS5803-02BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI and I2C bus interface. It is optimized for altimeters and variometers with an altitude resolution of 20 cm. The sensor module includes a high linearity pressure sensor and an ultra low power 24 bit ΔΣ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of an altimeter/thermometer function without any additional sensor. The MS5803-02BA can be interfaced to virtually any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. The gel protection and antimagnetic stainless steel cap allows the use in 100m waterproof altimeter/compass watches. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS Switzerland proven experience and know-how in high volume manufacturing of altimeter modules, which have been widely used for over a decade. The sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.

Features: • High resolution module, 20cm
• Fast conversion down to 1 ms
• Low power, 1 μA (standby < 0.15 μA)
• Integrated digital pressure sensor (24 bit ΔΣ ADC)
• Supply voltage 1.8 to 3.6 V
• Operating range: 300 to 2000 mbar, -40 to 85 °C
• Extended Pressure Range: 10 to 2000mbar
• I2C and SPI interface up to 20 MHz
• No external components (Internal oscillator)
• Excellent long term stability
• Hermetically sealable for outdoor devices

 

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Conditions Min. Typ. Max Unit
Supply voltage

VDD

-0.3

4.0

V
Storage temperature

TS

-40

125

°C
Overpressure

Pmax

ISO 2281

10

bar
Maximum Soldering

Tmax

40 sec max

250

°C
Temperature
ESD rating Human Body

-4

4

kV
Model
Latch up JEDEC standard

-100

100

mA
No 78

ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Conditions Min. Typ. Max Unit
Operating Supply voltage

VDD

1.8

3.0

3.6

V
Operating Temperature

T

-40

25

85

°C
OSR

4096

12.5

Supply current

IDD

2048

6.3

µA

1024

3.2

(1 sample per sec.)

512

1.7

256

0.9

Peak supply current during conversion

1.4

mA
Standby supply current at 25°c

0.02

0.14

µA
VDD Capacitor From VDD to GND

100

nF

 

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