Data Sheet

MS5837-30BA

Ultra Small Gel Filled Pressure Sensor

SENSOR SOLUTIONS /// MS5837-30BA

10/11/2015

FUNCTIONAL DESCRIPTION

GENERAL

The MS5837-30BA consists of a piezo-resistive sensor and a sensor interface IC. The main function of the

MS5837-30BA is to convert the uncompensated analogue output voltage from the piezo -resistive pressure sensor

to a 24-bit digital value, as well as providing a 24-bit digital value for the temperature of the sensor.

FACTORY CALIBRATION

Every module is individually factory calibrated at two temperatures and two pressures. As a result, 6 coefficients

necessary to compensate for process variations and temperature variations are calculated and stored in the 112-

bit PROM of each module. These bits (partitioned into 6 coefficients W1 to W6) must be read by the

microcontroller software and used in the program converting D1 and D2 into compensated pressure and

temperature values.

The coefficients W0 is for factory configuration and CRC.

SERIAL I2C INTERFACE

The external microcontroller clocks in the data through the input SCL (Serial CLock) and SDA (Serial DAta). The

sensor responds on the same pin SDA which is bidirectional for the I

C bus interface. So this interface type uses

only 2 signal lines and does not require a chip select.

Module ref

Mode

Pins used

MS5837-30BA

SDA, SCL