北京億優(yōu)八方科技發(fā)展有限公司
010-59457569 13552834074
MS5801-01BA
Altimeter Module
? High resolution module, 10cm
? Fast conversion down to 1 ms
? Low power, 1 μA (standby < 0.15 μA)
? Integrated digital pressure sensor (24 bit ?Σ ADC)
? Supply voltage 1.8 to 3.6 V
? Operating range: 10 to 1300 mbar, -40 to +125 °C
? I2C and SPI interface up to 20 MHz
? No external components (Internal oscillator)
? Excellent long term stability
? Hermetically sealable for outdoor devices
DESCRIPTION
The MS5801-01BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI
and I2C bus 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 ?Σ 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 MS5801-01BA can be interfaced to 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 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
FIELD OF APPLICATION TECHNICAL DATA
? Mobile altimeter / barometer systems Sensor Performances (V = 3 V)
DD
? Weather control systems Pressure Min Typ Max Unit
? Adventure or multi-mode watches Range 10 1300 mbar
? Variometers ADC 24 bit
? Dataloggers Resolution (1) 0.065 / 0.042 / 0.027 / mbar
0.018 / 0.012
Accuracy 25°C,
-1.5 +1.5 mbar
750 to 1100 mbar
FUNCTIONAL BLOCK DIAGRAM Accuracy -20°C to + 85°C,
-2.5 +2.5 mbar
300 to 1100 mbar (2)
VDD 0.5 / 1.1 / 2.1 / 4.1 /
Response time ms
8.22
PS
Meas. MUX
SENSOR +IN InD ti eg ri ft aa cl e C SDSB I/SDA Long term stability -1 mbar/yr
-IN PGA ADC Fd ilig te. r SS CD LO K Temperature Min Typ Max Unit
Range -40 +125 °C
Sensor Memory
Interface IC (PROM) Resolution <0.01 °C
128 bits
SGND
Accuracy -0.8 +0.8 °C
GND
Notes: (1) Oversampling Ratio: 256 / 512 / 1024 / 2048 / 4096
(2) With autozero at one pressure point
1/16北京億優(yōu)八方科技發(fā)展有限公司
010-59457569 13552834074
MS5801-01BA
Altimeter Module
PERFORMANCE SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Conditions Min. Typ. Max Unit
Supply voltage V -0.3 +4.0 V
DD
Storage temperature T -40 +125 °C
S
Overpressure P 100m, ISO2281 10 bar
max
Maximum Soldering
T 40 sec max 250 °C
Temperature max
Human Body
ESD rating -4 +4 kV
Model
JEDEC standard
Latch up -100 +100 mA
No 78
ELECTRICAL CHARACTERISTICS
Parameter Symbol Conditions Min. Typ. Max Unit
Operating Supply voltage V 1.8 3.0 3.6 V
DD
Operating Temperature T -40 +25 +125 °C
OSR 4096 12.5
2048 6.3
Supply current
I 1024 3.2 μA
(1 sample per sec.) DD
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
ANALOG DIGITAL CONVERTER (ADC)
Parameter Symbol Conditions Min. Typ. Max Unit
Output Word 24 bit
OSR 4096 7.40 8.22 9.04

您好！高分辨率數(shù)字氣壓傳感器MS5801-01BA是由瑞士測量技術(shù)公司ams AG（原名AMS）生產(chǎn)的先進傳感器產(chǎn)品。這款傳感器屬于微型電子設(shè)備，專門用于精確地測量環(huán)境中的大氣壓力。它采用數(shù)字輸出方式，能夠提供高達(dá)14位的分辨率，這意味著它可以非常準(zhǔn)確地量化當(dāng)前氣壓值的變化，精度可達(dá)±0.25 hPa (Pa) 或 0.3%FS (滿量程)，這對于許多工業(yè)應(yīng)用、氣象監(jiān)測、航空航天以及車載導(dǎo)航系統(tǒng)等領(lǐng)域都具有很高的實用價值。 MS5801-01BA支持I2C接口通信，便于集成到各種微控制器和嵌入式系統(tǒng)中，并且功耗低，適合于長壽命電池供電的應(yīng)用。總的來說，這是一款高性能、小型化并具備高度可靠性的數(shù)字氣壓傳感器，能滿足對空氣質(zhì)量數(shù)據(jù)獲取有嚴(yán)格要求的各種應(yīng)用場景的需求。如果您有關(guān)于這款產(chǎn)品的具體使用、選型或技術(shù)疑問，請隨時咨詢我們。