SmartElex Altitude Pressure Sensor Breakout Board MPL3115A2

The MPL3115A2 is a MEMS pressure sensor that measures pressure, altitude, and temperature. The sensor outputs are digitized by a high-resolution 24-bit ADC and transmitted over I2C. It provides altitude data to within 30cm accuracy with oversampling, and pressure output can be resolved in fractions of a Pascal. Temperature is measured with a 12-bit resolution.

MEMS pressure sensor

Altitude sensor

Temperature sensor

• Exceed Voltage Limits: Do not supply the sensor with voltages outside of its specified range (1.95V to 3.6V for supply and 1.6V to 3.6V for digital interface).,
• Physically Stress The Sensor: Avoid applying physical stress or pressure to the sensor as it may damage the MEMS structure.,
• Ignore Environmental Conditions: Do not use the sensor in environments that exceed its operational specifications, particularly extreme temperatures and humidity levels.

• Check Voltage Compatibility: Ensure that the supply voltage is between 1.95V to 3.6V and the digital interface supply voltage is between 1.6V to 3.6V.,
• Enable Oversampling: Enable oversampling to achieve higher accuracy in altitude measurements.,
• Utilize Fifo: Use the 32 Sample FIFO feature for efficient data logging over extended periods.

• Resolution: 20-bit,
• Accuracy: down to 30 cm

• Resolution: 20-bit,
• Unit: Pascals

• Resolution: 12-bit,
• Unit: degrees Celsius

• Supply Voltage: 1.95V to 3.6V,
• Digital Interface Supply Voltage: 1.6V to 3.6V

• Use Pull-Up Resistors: Ensure to use appropriate pull-up resistors on the I2C lines.,
• Check Pin Configuration: Refer to the breakout board pin layout for correct connections.

• Description: The sensor uses an I2C digital output interface, which operates up to 400 kHz. This makes it easy to connect to most microcontrollers and systems that support I2C communication.

18.01 mm

4 × 4 × 2 cm

25.24 mm