MS5803-05BA Miniature Altimeter and Diving Module The MS5803-05BA is a new generation of high resolution 2 altimeter sensors from TE Connectivity with SPI and I C bus interface. It is optimized for depth meters and altimeters with an altitude resolution of 30 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 current consumption. A high resolution temperature FEATURES output allows the implementation of an altimeter/thermometer function without any additional sensor. The MS5803-05BA can be High resolution module, 30cm interfaced to virtually any microcontroller. The communication Fast conversion down to 1 ms protocol is simple, without the need of programming internal Low power, 1 A (standby < 0.15 A) registers in the device. The gel protection and antimagnetic Integrated digital pressure sensor (24 bit ADC) stainless steel cap allows the use in 100m waterproof watches. This new sensor module generation is based on leading MEMS Supply voltage 1.8 to 3.6 V technology and latest benefits from TE proven experience and Operating range: 0 to 5bar, -40 to +85 C know-how in high volume manufacturing of altimeter modules, I2C and SPI interface (Mode 0, 3) which have been widely used for over a decade. The sensing No external components (Internal oscillator) principle employed leads to very low hysteresis and high stability of both pressure and temperature signal. Excellent long term stability Hermetically sealable for outdoor devices APPLICATIONS Dual Mobile altimeter / depth meter systems Adventure or multi-mode watches Diving computers SENSOR SOLUTIONS ///MS5803-05BA Page 1 08/2017 MS5803-05BA Miniature Altimeter and Diving Module TECHNICAL DATA Sensor Performances (V = 3 V) DD Pressure Min Typ Max Unit Range 0 5 bar ADC 24 bit Resolution (1), Altimeter 0.195 / 0.126 / 0.081 / mbar mode 0.054 / 0.036 Accuracy 20C -1.5 +1.5 mbar 300 to 1100 mbar (2) Accuracy 0C to +50C, -100 100 mbar 0 to 5 bar (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 -2.5 +2.5 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 -IN Filter SCLK Sensor Memory (PROM) Interface IC 128 bits SGND GND 08/2017 SENSOR SOLUTIONS ///MS5803-05BA Page 2