MS5803-02BA Miniature Altimeter Module SPECIFICATIONS High resolution module, 20cm Fast conversion down to 1 ms Low power, 1 A (standby < 0.15 A) Integrated digital pressure sensor (24 bit ADC) Supply voltage 1.8 to 3.6 V Operating range: 300 to 1100 mbar, -40 to +85 C Extended Pressure Range: 10 to 2000mbar 2 I C and SPI interface (Mode 0, 3) No external components (Internal oscillator) Excellent long term stability FEATURES Hermetically sealable for outdoor devices High resolution module, 20cm Fast conversion down to 1 ms The MS5803-02BA is a new generation of high resolution Low power, 1 A (standby < 0.15 A) 2 altimeter sensors from TE Connectivity with SPI and I C bus Integrated digital pressure sensor (24 bit ADC) interface. It is optimized for altimeters and variometers with an Supply voltage 1.8 to 3.6 V altitude resolution of 20 cm. The sensor module includes a high linearity pressure sensor and an ultra-low power 24 bit ADC with Operating range: 300 to 1100 mbar, -40 to +85 C internal factory calibrated coefficients. It provides a precise digital 24 Extended pressure range: 10 to 2000mbar Bit pressure and temperature value and different operation modes I2C and SPI interface (Mode 0, 3) that allow the user to optimize for conversion speed and current No external components (Internal oscillator) consumption. A high resolution temperature output allows the implementation of an altimeter/thermometer function without any Excellent long term stability additional sensor. The MS5803-02BA can be interfaced to virtually Hermetically sealable for outdoor devices 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 APPLICATIONS 100m water resistant altimeter/compass watches. This new sensor module generation is based on leading MEMS technology and latest Mobile altimeter / barometer systems benefits from TE proven experience and know-how in high volume Bike computers manufacturing of altimeter modules, which have been widely used Adventure or multi-mode watches for over a decade. The sensing principle employed leads to very low Variometers hysteresis and high stability of both pressure and temperature signal. Dataloggers SENSOR SOLUTIONS ///MS5803-02BA 08/2017 Page 1 MS5803-02BA Miniature Altimeter Module TECHNICAL DATA Sensor Performances (V = 3 V) DD Pressure Min Typ Max Unit 10 1100 Range mbar ADC 24 bit 0.13 / 0.084 / 0.054 Resolution (1) mbar / 0.036 / 0.024 Accuracy 25C, -1.5 +1.5 mbar 750 to 1100 mbar Accuracy -20C to + 85C, -2.5 +2.5 mbar 300 to 1100 mbar (2) 0.5 / 1.1 / 2.1 / 4.1 / Response time ms 8.22 Long term stability +/-1 mbar/yr Temperature Min Typ Max Unit Range -40 +85 C Resolution <0.01 C Accuracy -0.8 +0.8 C Notes: (1) Oversampling Ratio: 256 / 512 / 1024 / 2048 / 4096 (2) With autozero at one pressure point FUNCTIONAL BLOCK DIAGRAM VDD PS Meas. MUX CSB +IN Digital SENSOR SDI/SDA Interface SDO dig. PGA ADC Filter -IN SCLK Memory Sensor (PROM) Interface IC 128 bits SGND GND 08/2017 SENSOR SOLUTIONS ///MS5803-02BA Page 2