New MEMS Sensors

PUI Audio is introducing a new product line of pressure sensors based on microelectromechanical (MEMS) technology to complement our sensor offerings. These new MEMS pressure sensors provide solutions to applications that need pressure sensing or seek to combine the excellence of a high-fidelity MEMS microphone with a MEMS Pressure Sensor. These new sensors use an innovative MEMS architecture to deliver good linearity, high sensitivity, and high stability in small, surface-mount packages. Application examples include medical, wearables, industrial, security applications, robotics, or factory automation. These pressure sensors can be applied to accurately capture precise measurements and are used to generate real-time alerts.

New MEMS Pressure Sensor Part Numbers

PSA071040 Analog Pressure Sensor

The PSA071040 is a piezoresistive gauge pressure sensor suitable for biomedicine, automotive electronics, and other applications. At its core is a silicon piezoresistive pressure-sensitive network constructed using MEMS fabrication and structure creation technology. The pressure sensitive network consists of an elastic film and four resistors integrated on the film. The four resistors form a Wheatstone bridge structure. Pressure applied to the elastic film deforms the bridge’s resistors, generating a voltage output signal that is linearly proportional to the applied pressure. This sensor’s typical applications include blood pressure monitors, oxygen generators, massage chairs, and coffee machines.

Key Features

• Measuring Range 0kPa~40kPa
• Wheatstone Resistor Bridge Built with MEMS Technology
• Gauge Pressure Type • Small Outline Integrated Circuit (SOIC)Package
• Suitable For Non-Corrosive Gas Pressure Sensing
• Operating Temperature (TO) Range: -20℃ ≤ TO ≤ 85℃

PSD0603130 Digital Pressure Sensor

The PSD0603130 is a high-resolution absolute pressure sensor that is based on MEMS piezoresistive technology. It is housed in a compact 8-pin LGA package that features an anti-magnetic stainless-steel cap. It has a serial digital interface that allows connection to either SPI or I 2C buses. This sensor includes a high linearity and an ultra-low power 24-bit delta-sigma analog-to-digital converter (ΔΣADC) with internally stored factory-calibrated linearization coefficients that along with amplifying the pressure sensitive element’s output signal, applying temperature and linearity compensation, generates an accurate 24-bit digital pressure value. The PSD0603130 also includes a 16-bit temperature sensor with a nominal resolution of 0.003°C.

The SPI and I2C interface maximize compatibility with the communication interfaces on a wide range of popular micro-controllers.

This product can be used in barometers, mobile altimeters, indoor navigation and map AIDS, industrial pressure and temperature sensing systems, pressure and temperature data loggers, security surveillance, adventure and sports watches, gas meters, weather station equipment, oil contact applications.

Key Features

• Measuring Range: 30kPa~130kPa
• Temperature Accuracy: ±0.5℃
• 24-Bit Pressure Effective Measurement Bits(Pa)
• 16-Bit Temperature Effective Measurement Bits（℃)
• Programmable Interrupt Control
• Standby Current: < 0.2μA
• Waterproof and Anti-corrosion Design
• Operating Temperature (TO)Range: -40℃ ≤ TO ≤ 85℃
• Digital Output: I 2C/SPI