noise in accelerometer

nowadays i have done my project with my accelerometer MMA7260Q for detecting position. first, i have determined trouble with the output of my sensor…as we know that the offset voltage is abaout Vdd/2, but the problem is that the voltage is unstable…it has ripple/noise…about 80mV up/down the offset…is it normal?why it can be happened?bercause it’s so influence the computation of the algorithm…an may be the result is not accurate anymore…what should i do to solve this problem?

thank’s a lot

If you are using Sparkfun’s breakout for the IC, that may be the source of your noise… They tend to be quite

noisy with long leads that haven’t been braided correctly or if you don’t have a nice smooth, ripple free VCC

to your chip.