A good PCB layout for the MPXM2102AT1 involves keeping the sensor away from high-current carrying traces, using a solid ground plane, and minimizing the distance between the sensor and the analog-to-digital converter (ADC). A 4-layer PCB with a dedicated analog ground layer is recommended.
Calibration involves applying known pressures to the sensor and measuring the corresponding output voltages. A two-point calibration is recommended, where the sensor is calibrated at 0 psi and at the maximum rated pressure. The calibration coefficients can then be used to calculate the pressure from the output voltage.
The MPXM2102AT1 has a temperature coefficient of ±0.5% FS/°C, which means that the sensor's output voltage will change by ±0.5% of the full-scale range for every degree Celsius change in temperature. This can be compensated for using temperature sensors and calibration data.
The MPXM2102AT1 is not designed for use in humid or wet environments. It is recommended to use a protective coating or enclosure to prevent moisture ingress, which can affect the sensor's accuracy and reliability.
A 10 μF ceramic capacitor and a 100 nF ceramic capacitor in parallel, placed close to the sensor's power pins, are recommended for power supply decoupling. This helps to filter out noise and ensure stable operation.
