The ADXL313 is a low‑power 3‑axis digital accelerometer with selectable ±0.5 to ±4 g range and SPI/I²C interfaces.
The ADXL313 is a small, thin, low‑power 3‑axis accelerometer offering high‑resolution (13‑bit) measurement up to ±4 g. It provides digital output via SPI (3‑wire or 4‑wire) or I²C and includes built‑in motion‑detection functions for activity/inactivity monitoring, making it suitable for automotive applications such as car alarms and electronic parking brakes.
The device features ultralow power consumption (as low as 30 µA in measurement mode and 0.1 µA in standby), low noise (150 µg/√Hz typical for X/Y axes), a 32‑level FIFO, and flexible interrupt mapping. It operates from 2.0 V to 3.6 V, survives 10,000 g shock, and is RoHS compliant.
| Measurement Range | ±0.5, ±1, ±2, ±4 g |
|---|---|
| Sensitivity | 1024 LSB/g |
| Supply Voltage Range | 2.0 V – 3.6 V |
| Standby Mode Leakage Current | 0.1 µA typical |
| Shock Survival | 10,000 g |
The device operates from 2.0 V to 3.6 V.
It provides two interrupt pins, INT1 and INT2.