9
8
SECONDARY ACCELEROMETER
Accelerometer
Capacitive MEMS
Main features
DC accurate, long-term stability and minimal
drift versus temperature
Sample rate per axis
4,000 Hz
2,000 Hz
1,000 Hz
500 Hz
250 Hz
125 Hz
Bandwidth
-3 dB at 550 Hz
Measurement range
+/- 2.048 g
+/- 4.096 g
+/- 8.192 g
Shock resistance
5,000 g
Resolution
3.9 µg at +/- 2.048 g
7.8 µg +/- 4.096 g
15.6 µg +/- 8.192 g
Noise density
25 μg/√Hz
Analog anti-aliasing filter cutoff frequency
1.5 kHz
Digital filter
Sinc type
Drift
0.15 mg/C maximum, 0.02 mg/C typical
2. Technical specifications
PRIMARY ACCELEROMETER
Accelerometer
Capacitive MEMS
Main features
High frequency, high G and low noise
Sample rate per axis
32,000 Hz
16,000 Hz
8,000 Hz
4,000 Hz
Bandwidth
-3 dB at 10 kHz
Measurement range
+/- 50 g
Shock resistance
10,000 g
Resolution
1.5 mg
Noise density
26 μg/√Hz
Analog anti-aliasing filter cutoff
frequency
10 kHz
Digital filter
32 tap FIR filter
