MS5637-02BA03 Low Voltage Barometric Pressure Sensor ... - ncd.io
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
• • • • • • • • •
3
QFN package 3 x 3 x 0.9 mm High-resolution module, 13 cm Supply voltage: 1.5 to 3.6 V Fast conversion down to 0.5 ms Low power, 0.6 µA (standby ≤ 0.1 µA at 25°C) Integrated digital pressure sensor (24 bit ΔΣ ADC) Operating range: 300 to 1200 mbar, -40 to +85 °C 2 I C interface No external components (internal oscillator)
DESCRIPTION The MS5637 is an ultra-compact micro altimeter. It is optimized for altimeter and barometer applications in Smart-phones and Tablet PCs. The altitude resolution at sea level is 13 cm of air. 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 MS5637 can be 2 interfaced to any microcontroller with I C-bus interface. The communication protocol is simple, without the need 3 of programming internal registers in the device. Small dimensions of 3 x 3 x 0.9 mm allow the integration in mobile devices. 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 has 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
Smart-phones Tablet PCs Personal navigation devices
Sensor Performances (V DD = 3 V) Pressure
FUNCTIONAL BLOCK DIAGRAM
SENSOR
+IN
-IN
I2C Bus Interface ADC
dig. Filter
Sensor Interface IC SGND
SDA
GND
Max
Unit
2000
mbar
10
ADC
24 0.11 / 0.062/ 0.039 / 0.028 / 0.021 / 0.016
Error band at 25°C, 300 to 1200 mbar Error band, -20°C to + 85°C 300 to 1200 mbar (2)
bit mbar
-2
+2
mbar
-4
+4
mbar
Response time (1)
0.5 / 1.1 / 2.1 / 4.1 / 8.22 / 16.44
Long term stability
±1
SCL
Memory (PROM) 112 bits
Typ
Maximum Range
Resolution (1) VDD
Min
Temperature
Min
Range
-40
Resolution Accuracy at 25°C
Typ
mbar/yr Max
Unit
+85
°C
>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); }
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 11/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
APPLICATION CIRCUIT The MS5637 is a circuit that can be used in conjunction with a microcontroller in mobile altimeter applications.
Figure 12: Typical application circuit
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 12/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
PIN CONFIGURATION Pin
Name
Type
Function
1
VDD
P
Positive supply voltage
2
SDA
I/O
I C data
3
SCL
I
I C clock
4
GND
I
Ground
2
2
DEVICE PACKAGE OUTLINE
Notes:
(1) Dimensions in mm (2) General tolerance: ±0.1 Figure 13: MS5637 package outline
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 13/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
RECOMMENDED PAD LAYOUT Pad layout for bottom side of the MS5637 soldered onto printed circuit board. Reserved area: Please do not route tracks between pads
Figure 14: MS5637 pad layout
SHIPPING PACKAGE Tape and Tape and reel
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 14/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
MOUNTING AND ASSEMBLY CONSIDERATIONS SOLDERING Please refer to the application note AN808 available on our website for all soldering issues. MOUNTING The MS5637 can be placed with automatic Pick & Place equipment using vacuum nozzles. It will not be damaged by the vacuum. Due to the low stress assembly the sensor does not show pressure hysteresis effects. It is important to solder all contact pads. 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 MS5637 has been manufactured under clean-room 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 MS5637 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 100nF minimum ceramic capacitor must be placed as close as possible to the MS5637 VDD pin. This capacitor will stabilize the power supply during data conversion and thus, provide the highest possible accuracy.
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 15/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
TYPICAL PERFORMANCE CHARACTERISTICS
PRESSURE AND TEMPERATURE ERROR VERSUS PRESSURE AND TEMPERATURE (TYPICAL VALUES)
PRESSURE AND TEMPERATURE ERROR VERSUS POWER SUPPLY (TYPICAL VALUES)
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 16/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
ORDERING INFORMATION Part Number / Art. Number
Product
Delivery Form
MS563702BA03-50
Micro Altimeter Module 3x3mm
Tape & Reel
FACTORY CONTACTS EUROPE MEAS Switzerland Sàrl Ch. Chapons-des-Prés 11 CH-2022 Bevaix Tel: +41 32 847 9550 Fax: + 41 32 847 9569 e-mail: [email protected] Website: www.meas-spec.com
ASIA Measurement Specialties (China), Ltd. No. 26 Langshan Road Shenzhen High-Tech Park (North) Nanshan District, Shenzhen, 518057 China Tel: +86 755 3330 5088 Fax: +86 755 3330 5099 e-mail: [email protected] Website: www.meas-spec.com
NORTH AMERICA Measurement Specialties 45738 Northport Loop West Fremont, CA 94538 Tel: +1 800 767 1888 Fax: +1 510 498 1578 e-mail: [email protected] Website: www.meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 17/17
July 24, 2014
• • • • • • • • •
3
QFN package 3 x 3 x 0.9 mm High-resolution module, 13 cm Supply voltage: 1.5 to 3.6 V Fast conversion down to 0.5 ms Low power, 0.6 µA (standby ≤ 0.1 µA at 25°C) Integrated digital pressure sensor (24 bit ΔΣ ADC) Operating range: 300 to 1200 mbar, -40 to +85 °C 2 I C interface No external components (internal oscillator)
DESCRIPTION The MS5637 is an ultra-compact micro altimeter. It is optimized for altimeter and barometer applications in Smart-phones and Tablet PCs. The altitude resolution at sea level is 13 cm of air. 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 MS5637 can be 2 interfaced to any microcontroller with I C-bus interface. The communication protocol is simple, without the need 3 of programming internal registers in the device. Small dimensions of 3 x 3 x 0.9 mm allow the integration in mobile devices. 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 has 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
Smart-phones Tablet PCs Personal navigation devices
Sensor Performances (V DD = 3 V) Pressure
FUNCTIONAL BLOCK DIAGRAM
SENSOR
+IN
-IN
I2C Bus Interface ADC
dig. Filter
Sensor Interface IC SGND
SDA
GND
Max
Unit
2000
mbar
10
ADC
24 0.11 / 0.062/ 0.039 / 0.028 / 0.021 / 0.016
Error band at 25°C, 300 to 1200 mbar Error band, -20°C to + 85°C 300 to 1200 mbar (2)
bit mbar
-2
+2
mbar
-4
+4
mbar
Response time (1)
0.5 / 1.1 / 2.1 / 4.1 / 8.22 / 16.44
Long term stability
±1
SCL
Memory (PROM) 112 bits
Typ
Maximum Range
Resolution (1) VDD
Min
Temperature
Min
Range
-40
Resolution Accuracy at 25°C
Typ
mbar/yr Max
Unit
+85
°C
>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); }
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 11/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
APPLICATION CIRCUIT The MS5637 is a circuit that can be used in conjunction with a microcontroller in mobile altimeter applications.
Figure 12: Typical application circuit
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 12/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
PIN CONFIGURATION Pin
Name
Type
Function
1
VDD
P
Positive supply voltage
2
SDA
I/O
I C data
3
SCL
I
I C clock
4
GND
I
Ground
2
2
DEVICE PACKAGE OUTLINE
Notes:
(1) Dimensions in mm (2) General tolerance: ±0.1 Figure 13: MS5637 package outline
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 13/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
RECOMMENDED PAD LAYOUT Pad layout for bottom side of the MS5637 soldered onto printed circuit board. Reserved area: Please do not route tracks between pads
Figure 14: MS5637 pad layout
SHIPPING PACKAGE Tape and Tape and reel
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 14/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
MOUNTING AND ASSEMBLY CONSIDERATIONS SOLDERING Please refer to the application note AN808 available on our website for all soldering issues. MOUNTING The MS5637 can be placed with automatic Pick & Place equipment using vacuum nozzles. It will not be damaged by the vacuum. Due to the low stress assembly the sensor does not show pressure hysteresis effects. It is important to solder all contact pads. 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 MS5637 has been manufactured under clean-room 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 MS5637 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 100nF minimum ceramic capacitor must be placed as close as possible to the MS5637 VDD pin. This capacitor will stabilize the power supply during data conversion and thus, provide the highest possible accuracy.
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 15/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
TYPICAL PERFORMANCE CHARACTERISTICS
PRESSURE AND TEMPERATURE ERROR VERSUS PRESSURE AND TEMPERATURE (TYPICAL VALUES)
PRESSURE AND TEMPERATURE ERROR VERSUS POWER SUPPLY (TYPICAL VALUES)
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 16/17
July 24, 2014
MS5637
MS5637-02BA03 Low Voltage Barometric Pressure Sensor
ORDERING INFORMATION Part Number / Art. Number
Product
Delivery Form
MS563702BA03-50
Micro Altimeter Module 3x3mm
Tape & Reel
FACTORY CONTACTS EUROPE MEAS Switzerland Sàrl Ch. Chapons-des-Prés 11 CH-2022 Bevaix Tel: +41 32 847 9550 Fax: + 41 32 847 9569 e-mail: [email protected] Website: www.meas-spec.com
ASIA Measurement Specialties (China), Ltd. No. 26 Langshan Road Shenzhen High-Tech Park (North) Nanshan District, Shenzhen, 518057 China Tel: +86 755 3330 5088 Fax: +86 755 3330 5099 e-mail: [email protected] Website: www.meas-spec.com
NORTH AMERICA Measurement Specialties 45738 Northport Loop West Fremont, CA 94538 Tel: +1 800 767 1888 Fax: +1 510 498 1578 e-mail: [email protected] Website: www.meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
DA5637-02BA03_007 000056372111 ECN2317
www.meas-spec.com 17/17
July 24, 2014
