The ADXL325 is a small, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of ±5 g. It can measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration, resulting from motion, such as car driving, industrial robot operation, etc.
The ADXL325 is a small, low‑power, 3‑axis accelerometer offered in a 4 mm × 4 mm × 1.45 mm LFCSP package. It operates from a single supply of 1.8 V to 3.6 V and consumes only 350 µA typical current. Bandwidth can be set with external capacitors, ranging from 0.5 Hz to 1600 Hz for the X/Y axes and up to 550 Hz for the Z axis.
The document includes a functional block diagram, pin configuration, absolute maximum ratings, detailed electrical specifications, and typical performance graphs. It also provides guidance on layout, design trade‑offs, and self‑test procedures, making it useful for designers of mobile devices, gaming systems, disk‑drive protection, image‑stabilization, and health‑monitoring applications.
| Measurement Range | +5 g to +6 g |
|---|---|
| Sensitivity (X/Y/Z) at 3 V | 156‑192 mV/g |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Supply Current (3 V) | 350 µA typical |
| Noise Density | 250 µg/√Hz rms |
| Bandwidth (X/Y axes, no external filter) | 1600 Hz |
| Bandwidth (Z axis, no external filter) | 550 Hz |
| Operating Temperature Range | -40 °C to +85 °C |
| Absolute Maximum Shock Rating | 10,000 g |
The ADXL325 operates from 1.8 V to 3.6 V.
Typical supply current is 350 µA at 3 V.
The device measures acceleration from +5 g to +6 g.
The X and Y axes have a bandwidth of up to 1600 Hz without external filtering.