NXP Semiconductors FXLS8971CF 3-Axis MEMS Accelerometer
NXP Semiconductors FXLS8971CF 3-Axis MEMS Accelerometer is designed for various industrial and medical IoT applications requiring excellent offset and sensitivity stability over temperature. The part supports low-power and high-performance operating modes, allowing maximum flexibility to meet the resolution and power needs of various unique use cases. Several advanced, integrated digital features enable designers to simplify host data collection and reduce the overall system power consumption.
NXP Semiconductors FXLS8971CF is available in a 3mm x 3mm x 1.25mm 12-pin QFN package with 0.65 mm pitch and wettable flanks. The device is qualified to industrial standards over the extended -40°C to 105°C temperature range. Combining system power-saving features, sensor performance, and extended over-temperature-range performance makes FXLS8971CF an ideal accelerometer for motion and position sensing/inclinometer applications in the IoT and industrial segments.
Features
- ±2/4/8/16g user-selectable, full-scale measurement ranges
- 12-bit acceleration data
- 8-bit temperature sensor data
- 230µg/√Hz typical in high-performance mode low noise
- Low-power capability
- ≤ 1μA IDD for ODRs up to 6.25Hz
- < 4µA IDD for ODRs up to 50Hz
- Post-board mount zero-g Offset and TCO performance of ±30mg (typ) and ±0.15mg/°C (typ), respectively
- Selectable ODRs from 0.78Hz to 3200Hz in both low-power and high-performance modes
- Flexible performance mode allowing custom ODRs with programmable decimation (resolution) and idle-time settings
- 144-byte output data buffer (FIFO/LIFO) capable of storing up to 32 12-bit X/Y/Z data triplets
- Flexible Sensor Data Change Detection (SDCD) function for realizing motion or no motion, high-g/low-g, freefall, and other inertial events
- Autonomous orientation detection function (portrait/landscape/up/down)
- Self-governed low-power motion-detection mode with one-wire interface option
- 12-bit vector magnitude calculation
- Trigger input for synchronizing data collection with an external system
- I2C interface frequencies up to 1MHz; 3- and 4-wire SPI interface with clock frequencies up to 4MHz
- Bidirectional, robust self-test diagnostic: Device motion or orientation does not impact the result
Applications
- Medical
- Patient activity monitors
- Drug delivery
- Clinical care
- Smart inhalers
- Consumer devices
- Connected home
- Wearables
- Portable electronics
- Tilt sensing
- Mobile accessories
- Industrial IoT
- Asset tracking
- Equipment monitoring
- Smart metering/tamper detection
- Tilt measurement, orientation detection, vibration sensing
- Surveillance
- Point of sale devices
- Indoor localization
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