MS580502BA01-50

MS5805-02BA01 Miniature Altimeter Module SPECIFICATIONS            High resolution module, 20 cm Fast conversion down to 0.5 ms Low power, 0.6 µA (standby < 0.15 µA at 25°C) Integrated digital pressure sensor (24 bit ΔΣ ADC) Supply voltage 1.8 to 3.6 V Operating range: 300 to 1200 mbar, -40 to +85 °C Extended pressure range: 10 to 2000 mbar I2C interface No external components (Internal oscillator) Excellent long term stability Sealing designed for 2.5 x 1mm O-ring The MS5805-02BA is a new generation of high-resolution altimeter sensors from MEAS Switzerland with I2C bus interface. It is optimized for altimeters and variometers with an altitude resolution of 20 cm. The sensor module includes a high-linearity pressure sensor and an ultra low power 24 bit ΔΣ 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 MS5805-02BA can be interfaced to virtually any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS Switzerland 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. SENSOR SOLUTIONS ///MS5805-02BA01 06/2017 Page 1 MS5805-02BA01 Miniature Altimeter Module FEATURES FIELD OF APPLICATION      Mobile altimeter / barometer systems Bike computers Adventure or multi-mode watches Variometers Dataloggers TECHNICAL DATA Sensor Performances (VDD = 3 V) Pressure Min Range Typ 10 ADC Resolution (1) Accuracy 25°C, 750 to 1100 mbar Accuracy -20°C to + 85°C, 300 to 1200 mbar (2) Max Unit 2000 mbar 24 bit 0.35 / 0.19 / 0.11 / 0.06 / 0.03 / 0.02 mbar -2 +2 mbar -4 +4 mbar 0.5 / 1.1 / 2.1 / 4.1 / 8.22 / 16.44 ±1 Response time Long term stability Temperature Min Range -40 Resolution Typ ms mbar/yr Max Unit +85 °C 1]) & 0x00FF); else n_rem ^= (unsigned short) (n_prom[cnt>>1]>>8); for (n_bit = 8; n_bit > 0; n_bit--) { if (n_rem & (0x8000)) n_rem = (n_rem 12) & 0x000F); // final 4-bit reminder is CRC code return (n_rem ^ 0x00); } SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 13 MS5805-02BA01 Miniature Altimeter Module APPLICATION CIRCUIT The MS5805-02BA is a circuit that can be used in conjunction with a microcontroller in mobile altimeter applications. It is designed for low-voltage systems with a supply voltage of 3 V. Figure 12: Typical application circuit with I2C protocol communication SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 14 MS5805-02BA01 Miniature Altimeter Module PIN CONFIGURATION Figure 13: pin configuration Pin 1 2 3 4 Name VDD SCL SDA GND Type P I IO P Function Positive supply voltage Serial data Clock I2C data IO Ground DEVICE PACKAGE OUTLINE Figure 14: MS5805-02BA package outlines Notes: (1) Dimensions in mm (2) Interpret Dim and tolerance per ASME Y14.5M - 1994 (3) Angular dimensions ± 0.3° (4) Hole locations ± 0.1 (4) Linear dimension ± 0.1 (5) Cap centering ± 0.15 from center of the ceramic SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 15 MS5805-02BA01 Miniature Altimeter Module RECOMMENDED PAD LAYOUT Pad layout for bottom side of the MS5805 soldered onto printed circuit board. Figure 15: MS5805 pad layout SHIPPING PACKAGE Figure 16: Tape and Reel SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 16 MS5805-02BA01 Miniature Altimeter Module MOUNTING AND ASSEMBLY CONSIDERATIONS SOLDERING Please refer to the application note AN808 available on our website for all soldering issues. CONNECTION TO PCB The package outline of the module allows the use of a flexible PCB for interconnection. This can be important for applications in watches and other special devices. CLEANING The MS5805-02BA has been manufactured under cleanroom conditions. It is therefore recommended to assemble the sensor under class 10’000 or better conditions. Should this not be possible, it is recommended to protect the sensor opening during assembly from entering particles and dust. To avoid cleaning of the PCB, solder paste of type “no-clean” shall be used. Cleaning might damage the sensor! ESD PRECAUTIONS The electrical contact pads are protected against ESD up to 2 kV HBM (human body model). It is therefore essential to ground machines and personnel properly during assembly and handling of the device. The MS5805-02BA is shipped in antistatic transport boxes. Any test adapters or production transport boxes used during the assembly of the sensor shall be of an equivalent antistatic material. DECOUPLING CAPACITOR Particular care must be taken when connecting the device to the power supply. A 100 nF ceramic capacitor must be placed as close as possible to the MS5805-02BA VDD pin. This capacitor will stabilize the power supply during data conversion and thus, provide the highest possible accuracy. SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 17 MS5805-02BA01 Miniature Altimeter Module ORDERING INFORMATION Part Number / Art. Number MS580502BA01-50 Product MS5805-02BA Miniature Altimeter Module T&R Delivery Form Tape& reel TOP-UP NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc., a TE Connectivity company Tel: 800-522-6752 Email: customercare.frmt@te.com Measurement Specialties (Europe), Ltd., a TE Connectivity Company Tel: 800-440-5100 Email: customercare.bevx@te.com Measurement Specialties (China) Ltd., a TE Connectivity company Tel: 0400-820-6015 Email: customercare.shzn@te.com TE.com/sensorsolutions Measurement Specialties, Inc., a TE Connectivity company. Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application. © 2015 TE Connectivity Ltd. family of companies All Rights Reserved. SENSOR SOLUTIONS /// MS5805-02BA01 06/2015 Page 18