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Bosch Semiconductors

SMP580

Barometric pressure sensor for engine control units

Application & Technical Summary

SMD580

The SMP580 is designed to measure the current ambient barometric pressure, which continuously fluctuates based on altitude, weather conditions and ambient temperature.

A piezo-resistance wheatstone bridge on the SMP580 membrane transforms pressure into electrically measurable resistance. Signal conditioning and processing is performed by the ASIC.

Product benefits

  • High measurement accuracy and long-term stability
  • Digital interface for pressure and temperature output
  • Very low current consumption of under 15 µA in power-down mode
  • Customized pressure ranges and transfer functions upon request
  • Very robust design

ultra compact

smallest package on the market

Technical Features

Type
Barometric pressure sensor
Package
SOIC8
Range
60 to 165 kPa
Interface
SPI
Data resolution
10-, 12-, or 16-bit
Sensitivity
13.64 LSB/kPa
51.48 LSB/kPa
Tolerance
≤1.0 kPa (pressure)
≤3 K (temperature)
Supply voltage
3.3 to 5 V
Supply current
< 5mA
Operating temperature
-40°C to 125°C

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