Melexis has designed a relative pressure sensor IC that can operate in and measure very low pressures in automotive applications. The MLX90821 can detect even the smallest vapor leaks—which is a central part of EVAP systems. The device is an SoC (system on a chip) employing MEMS (Microelectromechanical system) technology, an analog signal chain, and digital signal processing to measure fuel vapor pressure over a range of 50 to 700 millibars.
The MLX90821 is a packaged and factory calibrated automotive relative pressure sensor IC with an analog and a SENT output that can be used in applications demanding very low pressures from 50 mbar up to 700 mbar in automotive harsh media applications such as fuel vapor.
The MLX90821 is the ideal solution for measuring very low pressures in applications requiring extended mission profiles when high robustness is needed.
Top features
- High accuracy relative pressure sensor with ratiometric analog output or digital SENT output including compensated ±1 °C accurate NTC media temperature information
- Large automotive temperature range (-40 °C to 150 °C)
- Automotive qualified and automotive diagnostic features (clamping levels, broken track diagnostics, multiple internal fault diagnostics)
Intro Video
more information: www.melexis.com