Single-axis iMEMS accelerometer provides a complete monolithic acceleration measurement system with pin-programmable ±50 g or ±25 g full-scale ranges. The ratiometric analog output operates from a 4 V to 6 V supply and is specified at 38 mV/g typical sensitivity with 1 mg/√Hz typical noise density. The device supports self-test, zero-g offset adjustment, and a 1 kHz small-signal bandwidth. Surface-mount 14-lead CERPAC packaging is specified for commercial 0°C to 70°C and industrial -40°C to 85°C temperature grades.
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| Sensor axes | 1 |
| Guaranteed full-scale range | ±40 min, ±50 typg |
| Nominal full-scale range | 0.2% of full scale |
| Transverse sensitivity | ±2 typ% |
| Sensitivity | 38 typ, 33 min, 43 maxmV/g |
| Sensitivity drift over temperature | ±0.5 typ% |
| Zero-g bias output | VS/2 typ, VS/2 - 0.35 min, VS/2 + 0.35 maxV |
| Zero-g drift due to temperature | 0.2g |
| Noise density | 1 typ, 2.5 maxmg/√Hz |
| Clock noise | 5 typmV p-p |
| 3 dB bandwidth | 900 min, 1000 typHz |
| Sensor resonant frequency | 24 typkHz |
| Output voltage swing | 0.25 min to VS - 0.25 max at IOUT = ±100 µAV |
| Capacitive load drive | 1000pF |
| Functional voltage range | 4.0 min, 6.0 maxV |
| Quiescent supply current | 1.8 typ, 3.0 maxmA |
| Commercial operating temperature | 0 to 70°C |
| Industrial operating temperature | -40 to 85°C |
These are design resources that include the Analog Devices ADXL150
Methods for reducing power in iMEMS accelerometers via voltage reduction, power cycling, and charge conservation techniques to optimize battery life in portable designs.
