Zemic Celmi Standard Load Cells Celmi Instruments


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The BM03S includes a piezo-resisteve pressure sensor and an ADC interface. It provides 16bit word data for pressure and temperature related voltage. With the help of a highly accurate calibration of the sensor, 11 unique coefficients were stored on the chip, thus accurate pressure and temperature reading can be interface is used for communications with a microprocessor. Sensor packaging options are DIP or SMD (with metal cap).


  • Pressure measurement and control system.
  • Mobile altimeter / barometer system.
  • Weather forecast products.
  • Adventure or multi-mode watches.


  • 15bit ENOB ADC resolution.
  • Supply voltage: 2,0V-5,0V.
  • -30°C to +85°C operating range.
  • Integrated pressure sensor.
  • Pressure range: 300-1100hPa.
  • 16bit Σ-ΔADC.
  • 11 coefficients for software compensation stored on chip.
  • I2C serial interface.
  • One system clock line (32768Hz).
  • One hardware controlled reset line.
  • Low voltage, low power.