The ADXL344 datasheet from Analog Devices details specifications, features, and application information for the 3‑axis ultra‑low‑power digital MEMS…
The ADXL344 is a 3‑axis digital MEMS accelerometer offering selectable measurement ranges of ±2, ±4, ±8, or ±16 g. It provides high‑resolution output (10‑13 bits) and low power consumption, making it suitable for mobile gaming, HDD protection, and tilt‑sensing applications.
Key features include SPI (3‑ or 4‑wire) and I2C interfaces, built‑in motion detection (tap, double‑tap, activity, inactivity, free‑fall, orientation), a 32‑level FIFO, and a compact 3 mm × 3 mm × 0.95 mm LGA package. The device operates from 1.7 V to 2.75 V and tolerates temperatures from –40 °C to +85 °C.
| Measurement range | ±2, ±4, ±8, ±16 g |
|---|---|
| Sensitivity (±2 g) | 256 LSB/g |
| Operating voltage (VS) | 1.7 V – 2.75 V |
| Temperature range | –40 °C to +85 °C |
| Power consumption (ODR ≥100 Hz) | 140 µA |
| Package | 16‑pin LGA 3 mm × 3 mm × 0.95 mm |
The device allows selectable ranges of ±2 g, ±4 g, ±8 g, or ±16 g.
It supports both SPI (3‑ or 4‑wire) and I2C digital interfaces.
At an output data rate of 100 Hz, the device consumes about 140 µA.
The accelerometer is packaged in a 16‑pin LGA measuring 3 mm × 3 mm × 0.95 mm.