Product Overview
The ST1VAFE3BX is a versatile biosensor designed for biopotential signal detection and motion tracking. It integrates a vertical analog front-end (vAFE) for capturing biopotential signals like ENG, ECG, and EEG, alongside a high-performance 3-axis digital accelerometer. This combination enables context-aware edge analysis with low power consumption and minimal latency. The device features an embedded machine learning core (MLC) and a finite state machine (FSM) for advanced data processing, adaptive self-configuration (ASC), and event detection, making it ideal for wearable and portable devices, activity tracking, and well-being applications.
Product Attributes
- Brand: STMicroelectronics
- Product Code: ST1VAFE3BX
- Compliance: ECOPACK and RoHS compliant
Technical Specifications
| Feature | Specification |
|---|---|
| Supply Voltage (VDD) | 1.62 V to 3.6 V |
| I/O Supply Voltage (IC, SPI) | 1.62 V to 3.6 V |
| I/O Supply Voltage (MIPI I3C) | 1.08 V to 3.6 V |
| Supply Current (High-performance mode) | 48.1 A (typ.) |
| Supply Current (Power-down) | 2.6 A |
| Biopotential Detection Channel | Single-channel, differential input amplifier (vAFE), programmable gain, 12-bit ADC resolution, ODR up to 3200 Hz (vAFE only) |
| Accelerometer Channel | Low noise (220 g/Hz), programmable full-scale (2g/4g/8g/16g), ODR from 1.6 Hz to 800 Hz |
| Embedded Processing | Machine Learning Core (MLC), Finite State Machine (FSM), Adaptive Self-Configuration (ASC) |
| FIFO Buffer | Up to 128 samples (accelerometer + vAFE) or 256 samples (accelerometer only) |
| Digital Output Interfaces | High-speed IC, SPI, MIPI I3C |
| Motion Detection Features | Advanced pedometer, step detector, step counter, free-fall, wake-up, tap recognition, orientation detection |
| Package | LGA-12L (2.0 x 2.0 x 0.74 mm max) |
| Operating Temperature Range | -40C to +85C |
| Shock Survivability | 10000 g (high shock) |
| Applications | Biopotential signal detection (ENG, ECG, EEG), Wearable and portable devices, Activity tracking and well-being |
2504101957_ST-ST1VAFE3BXTR_C35568295.pdf
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