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Freescale's Xtrinsic MPL3115A2 provides highly precise pressure and altitude data with variable sampling rate capability. It has very low-power consumption, smart features and requires zero data processing for mobile devices, medical and security applications.
The Xtrinsic MPL3115A2 pressure sensor smart features include digital output, two interrupts for auto-wake, minimum/maximum threshold detection and autonomous data acquisition. MCU usage can be limited since the MPL3115A2 pressure sensor can process sensor data locally, reducing communications required with the host processor.
Features
- Less than 1 foot / 0.3 m resolution
- Pressure range: 20 – 110 kPa
- Compensated, direct reading (software is not needed):
- 20-bit pressure measurement (Pascals)
- 20-bit altitude measurement (meters)
- 12-bit temperature measurement
- On-board intelligence
- Flexible sampling rate up to 128 Hz
Energy Efficiency Quick Facts
- Auto wake and sleep mode enable the application to switch modes depending on activity level- activating interrupts
- Adjustable and intelligent user controls allow the sample rate to be adjusted according to the environment for “intelligent contextual sensing”
- Programmable functions allow user to specify conditions for waking a host processor via interrupts
- Communication between sensor and host processor is minimized through smart FIFO functionality and intelligent interrupts
- Compensation and calibration of sensor data is enabled via local computation capability on the MPL3115A2 ASIC
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