The SM1131 Series features an absolute pressure sensor for barometric air pressure measurement (BAP). It includes a piezo-resistive pressure sensor die and a signal processing IC, which performs amplification and thermal compensation of the pressure sensor output to provide a linear, thermally stable signal output. The sensor delivers calibrated output data - pressure and temperature - with an I2C interface.
The calibration of this device corrects for pressure nonlinearity. Also the temperature from an on-chip temperature sensor can be read via I2C, as well diagnosis data. The component can be set to sleep-mode with very low consumption by a specific command. Wake-up from sleep-mode requires a toggling SCL input.
Sensor specific calibration data, configuration and product ID are stored in an embedded non-volatile memory (NVM).
|Pressure Range||60 to 165 kPa|
|Comp. Temp. Range||-40°C to +125°C|
|Port Type||Dual Hole|
|Digital Interface||I2C or SPI, 16 bit|
|Part Number||Data Sheet||Pressure Type||Pmax (PSI)||Calibrated Pmax||Output Type||Package Type||Characteristics||Request|
|SM1131-EEN-S-165-000||Absolute||23.9313||165 kPa||Digital (I²C)||SOIC-8 Holes||
Comp. Temp. -40˚C to +85˚C