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NXP Semiconductors FXLS8961AF 3-Axis MEMS Accelerometer

NXP Semiconductors FXLS8961AF 3-Axis MEMS Accelerometer is designed for a wide range of automotive security and convenience applications requiring excellent offset and sensitivity stability over temperature. The part supports low-power and high-performance operating modes, allowing maximum flexibility to meet various power needs and resolutions for unique use cases. Several advanced, integrated digital features help reduce overall system power consumption and simplify the host data collection.

NXP Semiconductors FXLS8961AF is available in a 3mm x 3mm x 1.25mm 12-pin QFN package with a 0.65mm pitch and wettable flanks. The device is qualified to AEC-Q100 and operates over the extended –40°C to 105°C temperature range. The combination of sensor performance, system power-saving features, and extended over-temperature range performance makes FXLS8961AF an ideal accelerometer for automotive security and convenience applications.

Features

  • ±2/4/8/16g user-selectable, full-scale measurement ranges
  • 12-bit acceleration data
  • 8-bit temperature sensor data
  • Low noise of 230µg/√Hz typical in high-performance mode
  • Low-power capability
    • ≤ 2μA 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 ±0.25mg/°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

  • Infotainment
  • Telematics (T-Box)
  • Car alarm
  • Inclinometer
  • Door checker
  • SmartLock

Block Diagram

Block Diagram - NXP Semiconductors FXLS8961AF 3-Axis MEMS Accelerometer

Related Development Tool

NXP Semiconductors FRDM-STBA-A8961 Sensor Shield Board

This board is  designed to evaluate and develop the FXLS8961CF 3-Axis accelerometer.

Learn Moreabout NXP Semiconductors FRDM-STBA-A8961 Sensor Shield Board View Productsrelated to NXP Semiconductors FRDM-STBA-A8961 Sensor Shield Board
Published: 2024-08-29 | Updated: 2024-09-05