MS5637-02BA03 Series Pressure Transducer

MS5637-02BA03 Series Pressure Transducer 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 […]

MS5637-02BA03 Series Pressure Transducer

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 interfaced to any microcontroller with I²C-bus interface. The communication protocol is simple, without the need of programming internal registers in the device. Small dimensions of 3 x 3 x 0.9 mm³ 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:

  • QFN Package 3 x 3 x 0.9mm3
  • High-resolution module, 13cm
  • Integrated digital pressure sensor (24-bit ΔΣ ADC)
  • I2C interface
  • Operating Temperature Range -40 to 85°C
  • Extended Pressure Range 10 to 2000mBar
Parameter Conditions Min. Typ. Max. Unit
Operating Pressure Range Prange

300

1200

 mbar
Extended Pressure Range Pext Linear Range of

10

2000

 mbar
ADC
Relative Accuracy, autozero at 700…1000 mbar at 25°C

±0.1

 mbar
one pressure point (1)
Absolute Accuracy, 300..1200 mbar at 25°C

-2

2

 mbar
no autozero 300..1200mbar, -20..85°C

-4

4
OSR

8192

0.016

4096

0.021
Resolution RMS

2048

0.028

 mbar

1024

0.039

512

0.062

256

0.11
Maximum error with supply VDD = 1.5 V … 3.6 V

±0.5

 mbar
voltage
Long-term stability

±1

 mbar/yr
Reflow soldering impact IPC/JEDEC J-STD-020C

-1

 mbar
(See application note AN808
on http://meas-spec.com)
Recovering time after reflow (2)

3

 days

(1)  Characterized value performed on qualification devices

(2)  Recovering time at least 66% of the reflow impact

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