STMicroelectronics recommends a PCB layout with a solid ground plane underneath the sensor to minimize noise and ensure accurate readings. A minimum of 4-layer PCB is recommended, with the sensor mounted on the top layer, and the ground plane on the bottom layer.
The LPS27HHWTR is a calibrated sensor, but you may need to perform a one-point calibration to adjust for any offset errors. This can be done by applying a known pressure and adjusting the output to match the expected value.
The LPS27HHWTR is rated for operation from -40°C to 125°C, but the accuracy and stability of the sensor may degrade at extreme temperatures. It's recommended to operate the sensor within the -20°C to 85°C range for optimal performance.
To minimize noise and EMI sensitivity, use a low-pass filter on the output signal, and ensure good PCB layout practices such as keeping the sensor away from high-frequency components and using a solid ground plane. Shielding the sensor and its connections can also help reduce EMI sensitivity.
The recommended power-on sequence is to apply VCC first, followed by VDD, and then the input voltage. This ensures that the internal voltage regulators are properly initialized and the sensor is powered up correctly.
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LPS27HHWTR Overview
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut
