SMD500 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – Altimeter / Barometer Module ultra low power, low voltage

Altimeter / Barometer Module SMD500
ultra low power, low voltage
1. General Description
The SMD500 marks a new generation of high precision digital
pressure sensors for consumer applications.
Its ultra low-power, low voltage electronics are optimized for
use in mobile phones, PDAs, GPS devices and outdoor
equipment. With an altitude noise down to 0.25 m it offers
superior performance. The I²C interface allows for easy
system integration with a microcontroller.
Robert Bosch is the world market leader for pressure sensors
in automotive applications. Based on the experience of over
100 million pressure sensors in the field, the SMD500 opens
a new generation of micromachined pressure sensors.
Typical Applications
 Outdoor navigation
 Dead reckoning
 Leisure and sports
 Weather forecast
 Vertical velocity indication (rise / sink speed)
 Security systems
The SMD500 is based on piezoresistive technology for EMC
robustness, high accuracy and linearity as well as long term
stability.
Altimeter / Barometer SMD500
Key Features
 Pressure range
300 ... 1100 hPa (+9000 ... -500 m)
 Supply voltage
2.2 ... 3.6 V
 Current consumption 5 µA (std. avg. @ 1 sample / sec.)
10 µA (high resolution)
 Resolution
±0.06 hPa (0.5 m) std. resolution
(rms noise)
±0.03 hPa (0.25 m) high resolution
 Sigma delta ADC
 Fully calibrated
 Temperature measurement included
 Digital two wire I²C interface
 Lead free and RoHS compliant
Altitude above Sea Level vs. Barometric Pressure
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
-1000
Altitude in standard
atmosphere
300 400 500 600 700 800 900 _{1000 1100}
Barometric pressure [hPa]
1
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