The ADXL213 is a low cost, low power, complete dual axis accelerometer with signal conditioned, duty cycle modulated outputs, all on a single monolithic IC. The ADXL213 measures acceleration with a full-scale range of ±1.2 g and has a resolution of 1 mg at 60 Hz.
The ADXL213 provides dual‑axis acceleration measurement on a single 5 mm × 5 mm × 2 mm LCC package. It outputs duty‑cycle‑modulated digital signals proportional to acceleration, allowing direct reading by a microcontroller without an ADC. The device operates from 3 V to 6 V, consumes 0.7–1.1 mA, and offers selectable bandwidths from 0.5 Hz to 250 Hz via external capacitors.
Automotive‑qualified models (ADXL213W) are available, and the part meets a 3500 g shock rating and a temperature range of –55 °C to +125 °C. Typical applications include tilt alarms, navigation, platform stabilization, and motion detection.
| Measurement Range | ±1.2 g per axis |
|---|---|
| Sensitivity (typical at 5 V) | 27 %/g |
| Zero‑g bias level | ±50 % (ratiometric) |
| Operating Voltage Range | 3 V to 6 V |
| Quiescent Supply Current | 0.7 mA to 1.1 mA |
| Bandwidth (selectable) | 0.5 Hz to 250 Hz |
| Shock Survival | 3500 g |
| Operating Temperature Range | –55 °C to +125 °C |
The ADXL213 operates from 3 V up to 6 V.
Bandwidth is set by adding external capacitors Cx and Cy at the filter pins; the -3 dB bandwidth equals 1/(2π·32 kΩ·C).
Typical sensitivity is about 27 % per g at a 5 V supply.
Yes, automotive‑qualified models (ADXL213W) are offered for automotive applications.