My questions is in regards to the Self-Test function of the MMA7361. According to the datasheet, when the self-test pin is activated the normal output for the Z axis is 1g with a min value of 0.8 and max value of 1.2.
I understand each accelerometer is different, which causes this tolerance but would each accelerometer change with age as long as the maximum specifications were not exceeded? The question really becomes this: If I record the output during a self-test, can I rely on this value to stay constant over the life of the device?
Thanks in advance.