AAA640 Servo Accelerometer

Acceleration sensor with 2 signal outputs in MEMS technology

About the AAA640 Servo Accelerometer 

The AAA640 Series of Solid State Accelerometers measure vector acceleration with high accuracy using an advanced micromachined (MEMS) silicon sensor incorporating a gas damping feature. Unlike fluid damped devices the gas damping employed is essentially independent of temperature. The transducer also incorporates positive mechanical stops confering excellent shock resistance. The accelerometer is also compensated for the effects of temperature on both sensitivity and zero.


Key features AAA640

  • Essentially zero temperature coefficent of damping ratio
  • Filtered and unfiltered outputs simultaneously available
  • Integral temperature compensation
  • DC input - DC output
  • Signal ground isolated from power ground
  • High reliability


Applications AAA640

  • Data acquisition systems
  • Crash recorders
  • Fatigue life monitoring and prediction
  • Monitoring and controlling deceleration in mass transit systems
  • Road bed analysis and fault detection equipment for high speed railways
  • Military and civil flight simulators
  • Low frequency vibration monitoring


Measurement Range
±1g / ±2g / ±3g / ±5g / ±10g / ±20g
≤ 0.02%
Output [Supply Voltage]
±5V filtered and unfiltered [6 - 32 VDC unregulated]
Input Current
100mA dc max.
≤ 0.001%
Damping Ratio
0.7 (± 0.2) @ 25°C
Operating Temperature
-40°C to +100°C
Compensated Temperature
0°C to +50°C
Storage Temperature
-55°C to +130°C
200g for 2ms (½ sine wave)
Will withstand constant 20 times rated range in all 3 axes without damage
120 g max.
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