The ADXL321 is a small and thin, low power, complete dual-axis accelerometer with signal conditioned voltage outputs. It features wide supply voltage range, low power consumption, and good zero g bias stability.
The ADXL321 is a compact dual‑axis accelerometer offered in a 4 mm × 4 mm × 1.45 mm LFCSP package. It provides signal‑conditioned voltage outputs, operates from a single supply (2.4 V‑6 V), and consumes only 350 pA at 2.4 V. Bandwidth is set with external capacitors Cx and Cy, allowing 0.5 Hz‑2.5 kHz selection, and the device can survive shocks up to 10,000 g.
The datasheet includes full specifications, absolute maximum ratings, pin configuration, typical performance curves, and recommended soldering profiles. Applications include vibration monitoring, abuse‑event detection, and sports equipment. The device is compatible with standard Sn/Pb and lead‑free solder processes.
| Measurement Range | +18 g |
|---|---|
| Sensitivity (typical) | 57 mV/g |
| Zero‑g Voltage (typical) | 1.5 V |
| Quiescent Supply Current | 0.49 mA |
| Operating Temperature Range | -20 °C to +70 °C |
| Shock Survival | 10,000 g |
The ADXL321 measures acceleration over a full‑scale range of ±18 g.