Product Parameters​​

​​Sensing Type​​: Three-axis accelerometer (X/Y/Z axis, ±1.5g/±6g range selectable)

​​Supply Voltage​​: DC 2.2V–3.6V (typical 3.3V; overvoltage may damage the chip)

​​Output Signal​​: Analog voltage (0V–VCC, proportional to acceleration)

​​Sensitivity​​:

±1.5g range: 800mV/g (linearity error ±1.5%)

±6g range: 206mV/g (linearity error ±2.5%)

​​Bandwidth​​: 0–400Hz (configurable low-pass filter)

​​Zero-g Output​​: 1.65V (at VCC=3.3V)

​​Operating Current​​: 400μA (active mode), 3μA (sleep mode)

​​Temperature Range​​: -40°C to +85°C (Reliable)

​​Impact Resistance​​: Withstands 10,000g shock

​​Interface​​: 2.54mm pin spacing (breadboard-compatible)

​​Key Features​​

​​Pin Functions​​

​​VCC​​: Power positive (2.2V–3.6V DC). Use parallel 10μF electrolytic + 0.1μF ceramic capacitor for filtering.

​​GND​​: Power ground (low-impedance path, away from noise sources).

​​X-OUT/Y-OUT/Z-OUT​​: Analog outputs for X/Y/Z-axis acceleration. Connect to MCU ADC channels.

​​0g-SELECT​​: Range selector: connect to VCC for ±1.5g, GND for ±6g (float default high).

​​SLEEP​​: Sleep control: high level (≥70% VCC) for sleep mode, GND or float for active mode.

​​FAQ​​

1.
​​Q​​: Zero-g output drifts from 1.65V?

​​A​​: Allow 10s self-calibration at startup; add RC filter (10kΩ + 0.1μF to GND) .

2.
​​Q​​: Range switching not working?

​​A​​: Ensure 0g-SELECT is firmly tied to VCC/GND (not floating); use 10kΩ pull-up/down if needed.