
Silicon Microstructures, Inc.
DESCRIPTION
The SM1131-EEN-S-165-000 is an absolute pressure sensor for barometric air pressure measurement (BAP). It includes a piezoresistive 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.
FEATURES
• Fully integrated pressure sensor
• Measurement of absolute pressure: 60 - 165 kPa with over-range
capability 40 - 180 kPa
• Full thermal compensation to accuracy ±1.0 kPa
• Digital I2C data interface provides measurement, diagnostic,
ID-data and controls:
• pressure output, 16-bit resolution
• temperature output (internal sensor), 16-bit resolution
• sensor diagnostics (state-of-health)
• power-down control: Sleep Mode selected via I2C
• unique device ID
• Two I2C slave addresses via pin coding
• Two 16-bit ADCs for acquisition of pressure and temperature
inputs; pressure acquired at 20 kS/s
• Diagnosis of sensor, sensor supply wiring, and NVM check-sum
supervision at power-on
• Sleep-mode with low current consumption
• Supply voltage 3.3 V or 5.0 V in the same device
• Large operating temperature range -40 to + 85°C
• Automotive qualified acc. to AEC-Q100