ADXL345 is a 3-axis ±2g/±4g/±8g/±16g digital accelerometer. It features ultra low power, user selectable resolution, activity/inactivity monitoring, free fall detection and more.
The ADXL345 is a small, thin, ultralow‑power 3‑axis digital accelerometer with selectable measurement ranges of ±2, ±4, ±8 and ±16 g. It offers high resolution (up to 13‑bit full‑resolution) and a variety of motion‑detect functions such as tap, activity, inactivity and free‑fall detection. The device operates from 2.0 V to 3.6 V and includes a patented FIFO memory system to reduce host processor load.
The datasheet provides complete electrical specifications, pin‑out details, typical performance curves, and mechanical dimensions (3 mm × 5 mm × 1 mm LGA package). It also lists absolute maximum ratings, ESD precautions, and recommended layout considerations for reliable integration into handheld, medical, industrial and automotive applications.
| Measurement Range | +2, +4, +8, +16 g |
|---|---|
| Output Resolution | 10‑bit to 13‑bit (full‑resolution) |
| Operating Voltage Range (Vs) | 2.0 V to 3.6 V |
| Standby Mode Leakage Current | 0.1 µA |
| Operating Temperature Range | -40 °C to +85 °C |
| Device Weight | 30 mg |
| Package Size | 3 mm × 5 mm × 1 mm LGA |
The ADXL345 operates from 2.0 V to 3.6 V.
It supports selectable ranges of ±2 g, ±4 g, ±8 g, and ±16 g.
The device is packaged in a 3 mm × 5 mm × 1 mm LGA package.