Integrated Pressure, Humidity and Temperature Sensor
Measurement Specialties, Inc. has just released to production its MS8607-02BA01 digital PTH (Pressure, Temperature, Humidity) fusion sensor. This small QFN packaged 5 x 3 x 1mm³ integrated pressure, humidity and temperature sensor is ideal for weather station applications embedded into compact devices, or any application in which pressure, humidity and temperature monitoring is required.
The MS8607-02BA01 includes two sensors with distinctive MEMS technologies to measure pressure, humidity and temperature. The first sensor is a piezoresistive sensor providing pressure and temperature, and the second is a capacitive-type sensor providing relative humidity. Each sensor is interfaced to a ΔΣ ADC integrated circuit for digital conversion where the MS8607-02BA01 converts the uncompensated analog output voltages to a 24-bit digital value for the pressure and temperature measurements, and a 12-bit digital value for the relative humidity measurement.
This sensor requires 8 pads for operation, uses I²C communication and operates at a 1.8 – 3.6V supply voltage. With an operating pressure range of 10 to 2000 mBar, it has a pressure accuracy of ±2.0mBar (@25°C, 300...1200mBar) and pressure resolution of 0.016mBar. Operating at a humidity range of 0 – 100% R.H., it has a humidity accuracy of ±3.0% R.H. (@25°C, 20...80% R.H.) and humidity resolution of 0.04% R.H. In regards to temperature, this sensor operates at -40°C to +85°C with a temperature accuracy of ±2.0°C (-20°C...+85°C) and temperature resolution of 0.01°C.
The MS8607-02BA01 is well suited for applications in the consumer electronic and industrial marketplace such as smartphones and tablet PCs, HVAC applications, weather stations, printers, and home appliance and humidifiers.