MS5803-30BA Miniature 30 bar Module
DA5803-30BA_007 ww.meas-spec.com August. 25, 2014
000058031759 ECN2319 1/18
• High resolution module, 0.5 mbar
• 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
• Operati n g ra n g e: 0 to 30 bar, -40 to +85 °C
• I2C and SPI interface (Mode 0, 3)
• No external components (Internal oscillator)
• Excell ent long term stability
• Hermetically sealable for outdoor devices
•
High Endurance (HE version)
DESCRIPTION
The MS5803-30BA is a new generation of high resolu tion pressure sens ors with SPI and I2C bus interface. The
MS5803-30A HE is the hig h endur anc e pa d tec hn ol og y versi on of the MS5803-30BA pres sur e s ensor module. It
is optimized for depth measurement systems with a water depth resolution of 2.5cm and below. The sensor
module includes a high linear pressure sensor and an ultra low power 24 bit ΔΣ ADC with internal factory
calibrated c oef f ic ients. It provides a prec ise d ig ita l 24 Bit pres s ure a nd temperatur e value a nd dif ferent opera tion
modes that allow the user to optimize for conversion speed and current consumption. A high resolution
temperature output allows the implementation of a depth measurement systems and thermometer function
without an y addition al sensor. T he MS5803-30BA can be interfac ed to any mic rocontroller. T he communic ation
protocol is simple, without the need to programming internal registers in the device. The gel protection and
antimagnet ic stainles s steel c ap mak e the module water resistant. T his new sensor module generat ion is bas ed
on leading MEMS techn ology and latest benefits from MEAS Switzer land's proven ex perience a nd know-how in
high volume manufacturing of pressure modules have been widely used for over a decade. This sensing
principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.
FEATURES
FIELD OF APPL ICATION TECHNICAL DATA
Mobile water depth measurements systems Sensor Performances (VDD = 3 V)
Adventure or multi-mode watches
High endurance pad technology (HE version)
Range 0 30 bar
FUNCTIONAL BLOCK DIAGRAM
ADC 24 bit
Resolution (1)
2.5 / 1.5 / 1 / 0.75
/ 0.5
mbar
Accuracy 0°C to +40°C,
0 to 6 bar (2)
-50 +50 mbar
Accuracy -40°C to + 85°C
0 to 6 bar (2)
-100 +100 mbar
Response time
0.5 / 1.1 / 2.1 / 4.1 /
8.22
ms
Long term stabilit y -50 mbar/yr
Temperature Min Typ Max Unit
Range -40 +85 °C
Resolution <0.01 °C
Accuracy -0.8 +0.8 °C
Notes: (1) Oversampling Rat i o: 256 / 512 / 1024 / 2048 / 4096
(2) With autozero at one press ure point