The ADXL314 is a ±200 g, 13‑bit, 3‑axis digital accelerometer with low‑power operation and SPI/I²C interfaces.
The ADXL314 is a ±200 g range, 13‑bit resolution, 3‑axis digital accelerometer. It offers low power consumption (170 µA in measurement mode, 0.1 µA in standby), user‑selectable bandwidth up to 3200 Hz, and both SPI (3‑ or 4‑wire) and I²C digital interfaces. The device is supplied in a compact 5 mm × 5 mm × 1.45 mm 32‑lead LFCSP package and includes an integrated FIFO buffer to reduce host processor load.
Designed for automotive and industrial use, the ADXL314 supports shock event detection, activity monitoring, and self‑test functions. It operates over a wide temperature range (‑40 °C to +125 °C) and meets AEC‑Q100 automotive qualification. The data sheet provides detailed specifications, pin descriptions, power‑sequencing guidelines, and application notes for tire and battery‑pack monitoring and high‑force event detection.
| Measurement Range | ±200 g |
|---|---|
| Output Resolution | 13 bits |
| Supply Voltage Range | 2.0 V to 3.6 V |
| Measurement Mode Current | 170 µA |
| Operating Temperature Range | ‑40 °C to +125 °C |
| Noise Density (X/Y) | 5.65 mg/√Hz |
| Maximum Bandwidth | 3200 Hz |
The ADXL314 measures accelerations up to ±200 g on each axis.
It supports both SPI (3‑ or 4‑wire) and I²C interfaces.
The recommended supply voltage is 2.0 V to 3.6 V.