MS5803-01BA Miniature Variometer Module The MS5803-01BA is a new generation of high resolution 2 altimeter sensors from TE Connectivity with SPI and I C bus interface. The MS5803-01BA HE is the high endurance pad technology version of the MS5803-01BA pressure sensor module. It is optimized for altimeters and variometers with an altitude resolution of 10 cm. The sensor module includes a high linearity pressure sensor and an ultra-low power 24 bit 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 FEATURES current consumption. A high resolution temperature output allows High resolution module, 10cm the implementation of an altimeter/thermometer function without Fast conversion down to 1 ms any additional sensor. The MS5803-01BA can be interfaced to virtually any microcontroller. The communication protocol is Low power, 1 A (standby < 0.15 A) simple, without the need of programming internal registers in the Integrated digital pressure sensor (24 bit ADC) device. The gel protection and antimagnetic stainless steel cap Supply voltage 1.8 to 3.6 V allows the use in 100m water resistant altimeter/compass Operating range: 10 to 1300 mbar, -40 to +85 C watches. This new sensor module generation is based on leading MEMS technology and latest benefits from TE proven experience I2C and SPI interface (Mode 0, 3) and know-how in high volume manufacturing of altimeter modules, No external components (Internal oscillator) which have been widely used for over a decade. The sensing Excellent long term stability principle employed leads to very low hysteresis and high stability Hermetically sealable for outdoor devices of both pressure and temperature signal. High Endurance (HE version) APPLICATIONS Mobile altimeter / barometer systems Bike computers Adventure or multi-mode watches Variometers Dataloggers High endurance pad technology (HE version) SENSOR SOLUTIONS ///MS5803-01BA 06/2017 Page 1 MS5803-01BA Miniature Variometer Module Sensor Performances (V = 3 V) DD Pressure Min Typ Max Unit Range 10 1300 mbar ADC 24 bit 0.065 / 0.042 / 0.027 Resolution (1) mbar / 0.018 / 0.012 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 Sensor Memory (PROM) Interface IC 128 bits SGND GND 08/2017 SENSOR SOLUTIONS ///MS5803-01BA Page 2