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Biosensor with vAFE (vertical analog front-end) for biopotential signals and 6-axis IMU (inertial measurement unit) with AI and sensor fusion

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The ST1VAFE6X is a biosensor embedding a vAFE channel to detect biopotential signals and a 6-axis IMU featuring a high-performance 3-axis digital accelerometer and 3-axis digital gyroscope for motion tracking.

The ST1VAFE6AX embeds advanced dedicated features and data processing for motion processing like the finite state machine (FSM), sensor fusion low power (SFLP), adaptive self-configuration (ASC), and machine learning core (MLC) with exportable AI features/filters.

The ST1VAFE6AX is available in a small plastic, land grid array (LGA) package of 2.5 x 3.0 x 0.71 mm to address ultracompact solutions.

  • 特徴

    • Dual channels for biopotential signal detection and motion tracking
    • Biopotential signal detection channel with analog hub
      • Single-ended or differential input amplifier (vAFE) channel
      • Digital notch filter to reduce powerline noise (50/60 Hz)
      • ODR fixed at 240 Hz
    • Biopotential and motion signals fully synchronized for context-aware analysis
    • Programmable finite state machine for accelerometer, gyroscope, and vAFE data processing with high rate @960 Hz
    • Machine learning core with exportable features and filters for AI applications
    • “Always-on" experience with low power consumption
    • Smart FIFO up to 4.5 KB
    • ±2/±4/±8/±16 g full scale
    • ±125/±250/±500/±1000/±2000/±4000 dps full scale
    • SPI / I²C & MIPI I3C® v1.1 serial interface with main processor data synchronization
    • Embedded adaptive self-configuration (ASC)
    • Embedded analog hub for ADC and processing analog input data
    • Embedded sensor fusion low-power algorithm
    • Embedded temperature sensor
    • Analog supply voltage: 1.71 V to 3.6 V
    • Independent IO supply (extended range: 1.08 V to 3.6 V)
    • Compact footprint: 2.5 mm x 3 mm x 0.71 mm
    • ECOPACK and RoHS compliant

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STMicroelectronics - ST1VAFE6AX

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